Technical Service Bulletins (TSBs) for the 2009 Sierra are official communications between GMC & their dealerships that describe processes for troubleshooting or fixing certain common problems.
All vehicle manufacturers are required by U.S. law to make their TSBs available to the public.
This preliminary informational bulletin provides a procedure to apply dielectric grease and a piece of adhesive shim stock to the steering angle sensor connector to correct a condition of service stabilitak message displayed in DIC and ... Read More »
This Preliminary Information communication provides information to the technician with the installation of Cruise Control on a vehicle which did not come equipped with the option. Read More »
This Preliminary Information communication provides information to the technician with the installation of Cruise Control on a vehicle which did not come equipped with the option. Read More »
BUICK/CADILLAC/CHEVROLET/GMC/OLDSMOBILE AND HUMMER: INFORMATION ON PITMAN ARM SHAFT SEAL SERVICE KIT. DO NOT REPLACE ENTIRE STEERING GEAR FOR PITMAN SEAL LEAK. Read More »
GENERAL MOTORS: THE LEFT AND/OR RIGHT STEERING WHEEL LOWER (SPOKE) COVER IS WARPED, LOOSE, DISCOLORED OR JUST FITS POORLY IN THE STEERING WHEEL. THE PAINT FINISH SEEMS TO BE PEELING. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have an instrument panel backlighting flashes, flickers or inoperative, unwanted horn activation, radio controls inoperative or unwanted ... Read More »
CADILLAC/CHEVROLET/GMC: WILL HAVE INOPERATIVE CRUISE CONTROL; INOPERATIVE OR UNWANTED ACTIVATION OF RADIO CONTROLS; BACKLIGHTING FLASHES, FLICKERS OR INOPERATIVE DUE TO POSSIBLE SHORT TO GROUND ON STEERING WHEEL COIL CONNECTOR X2. Read More »
GENERAL MOTORS: THE LEFT AND/OR RIGHT STEERING WHEEL LOWER (SPOKE) COVER IS WARPED, LOOSE, DISCOLORED OR JUST FITS POORLY IN THE STEERING WHEEL. THE PAINT FINISH SEEMS TO BE PEELING. Read More »
BUICK/CADILLAC/CHEVROLET/GMC/OLDSMOBILE AND HUMMER: INFORMATION ON PITMAN ARM SHAFT SEAL SERVICE KIT. DO NOT REPLACE ENTIRE STEERING GEAR FOR PITMAN SEAL LEAK. Read More »
This technical bulletin provides a procedure to flush and bleed the power steering system to correct a condition of power steering noise or fluid leak from power steering pump, gear or high pressure hose during extreme low temperature ... Read More »
BUICK/CADILLAC/CHEVROLET/GMC/PONTIAC/ SATURN: THERE IS FLUID LEAKING FROM POWER STEERING SYSTEM, ALONG A FLUID LEAK IN FRONT OF VEHICLE UNDERNEATH AND SHOULD BE INSPECTED, CLEANED AND IDENTIFIED BEFORE REPAIRING OR REPLACING. Read More »
GMC: HYDRAULIC POWER STEERING LEAK AT HOSE CONNECTION TO STEERING RACK. ALL POTENTIAL LEAKS SHOULD BE COMPLETELY CLEANED AND INDENTIFIED BEFORE ATTEMPTING TO REPAIR OR REPLACE ANY POWER STEERING COMPONENTS. *JS UPDATED 4/22/13. Read More »
STEERING:HYDRAULIC POWER ASSIST:POWER STEERING FLUID
BUICK/CADILLAC/CHEVROLET/GMC/PONTIAC/ SATURN: THERE IS FLUID LEAKING FROM POWER STEERING SYSTEM, ALONG A FLUID LEAK IN FRONT OF VEHICLE UNDERNEATH AND SHOULD BE INSPECTED, CLEANED AND IDENTIFIED BEFORE REPAIRING OR REPLACING. Read More »
This preliminary informational bulletin provides a procedure to apply dielectric grease and a piece of adhesive shim stock to the steering angle sensor connector to correct a condition of service stabilitak message displayed in DIC and ... Read More »
This technical bulletin provides repair information for the re-torque of leaf spring bolts to correct a customer concern for a clunking noise coming from the rear of the vehicle. Read More »
This technical bulletin provides repair information for the re-torque of leaf spring bolts to correct a customer concern for a clunking noise coming from the rear of the vehicle. Read More »
This technical bulletin provides repair information for the re-torque of leaf spring bolts to correct a customer concern for a clunking noise coming from the rear of the vehicle. Read More »
This technical bulletin provides repair information for the re-torque of leaf spring bolts to correct a customer concern for a clunking noise coming from the rear of the vehicle. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have grease leaking from front hub bearings. Technician should not replace the bearing for grease purge. Read More »
This technical bulletin provides a procedure to lube the rear leaf springs on vehicles with the condition of a squeak noise originating from the rear of the vehicle. Read More »
This technical bulletin provides repair information for the re-torque of leaf spring bolts to correct a customer concern for a clunking noise coming from the rear of the vehicle. Read More »
This technical bulletin provides repair information for the re-torque of leaf spring bolts to correct a customer concern for a clunking noise coming from the rear of the vehicle. Read More »
CHEVROLET/GMC: A CLUNKING NOISE COMING FROM THE REAR OF THE VEHICLE. UPON FURTHER INVESTIGATION, THE TECHNICIAN MAY DIAGNOSE THE NOISE COMING FROM THE REAR SUSPENSION LEAF SPRING AREA. *PE UPDATED 6/30/2011. Read More »
CHEVROLET/GMC: A CLUNKING NOISE COMING FROM THE REAR OF THE VEHICLE. UPON FURTHER INVESTIGATION, THE TECHNICIAN MAY DIAGNOSE THE NOISE COMING FROM THE REAR SUSPENSION LEAF SPRING AREA. *PE UPDATED 6/30/2011. Read More »
GMC/CHEVROLET/CADILLAC: INSTRUMENT PANEL MESSAGES REGARDING STABILITRAK MESSAGE, TRACTION CONTROL MESSAGE, SERVICE BRAKE SYSTEM MESSAGE, IS OFF AND GAUGES, IN VARIOUS MODULES LOW SPEED SETTINGS, ARE INOPERATIVE. Read More »
This warranty administration bulletin provide policy information on a revised customer concern not duplicated/verified labor operation numbers and how to submit CCND. Read More »
This Preliminary Information communication advises the technician that the Electronic Brake Control Module and Brake Pressure Modulator Valve for the 2-Mode Hybrid Utilities and Trucks will be placed on a parts restriction through the ... Read More »
This Preliminary Information communication advises the technician that the Hydro-Boost is not serviceable and will need to be replaced if the brake pedal moves or applies on its own at a full turn. Read More »
This Preliminary Information communication provides information to the technician about hairline cracks may be noticed in the pad friction material, when performing a brake inspection. Read More »
This Preliminary Information communication provides the technician with the additional steps that are needed to help perform a successful brake bleed on the 2-Mode Hybrid with Regular Production Option Code HP2. Read More »
This Preliminary Information communication advises the technician that the Hydro-Boost is not serviceable and will need to be replaced if the brake pedal moves or applies on its own at a full turn. Read More »
CADILLAC/CHEVROLET/GMC: SERVICE BRAKE SYSTEM MESSAGE ON WITH DTCS C012E, C12FE. CONCERNS AFTER QUICKLY SHIFTING OUT OF THE PARK POSITION. INCLUDE HYBRIDS:TAHOES, SILVERADOS, SIERRAS AND YUKONS. *PE UPDATED 6/8/10. Read More »
This Preliminary Information communication advises the technician that the Hydro-Boost is not serviceable and will need to be replaced if the brake pedal moves or applies on its own at a full turn. Read More »
This Preliminary Information communication provides information to the technician about Electronic Brake Control Module relearn procedure is required anytime the Electronic Brake Control Module is replaced or has been Service Programming ... Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a lack of brake assist after disconnecting the battery or after the 12 volts battery has run low on voltage. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have an Antilock Braking System lamp followed by a Service Stability message in the Drivers Information Center. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a "Service Stability Message" appears on the Drivers Information Center. Read More »
GENERAL MOTORS: THE BRAKES ARE GRABBY OR TOUCHY WHEN APPLIED OR AN INTERMITTENT MIL/SES LIGHT MAY BE ILLUMINATED. UPON FURTHER INVESTIGATION, THE TECHNICIAN MAY FIND DTC C012E SET IN THE EBCM AND C12FE SET IN THE ECM. Read More »
This Preliminary Information communication provides information to the technician about hairline cracks may be noticed in the pad friction material, when performing a brake inspection. Read More »
SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP
This Preliminary Information communication provides information to the technician about vehicles that have an Antilock Braking System lamp followed by a Service Stability message in the Drivers Information Center. Read More »
SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:ABS WARNING LIGHT
CHEVROLET/CADILLAC/GMC: CERTAIN VEHICLES EXPERIENCING ERRATIC OR INOPERATIVE SPEEDOMETER OR ANTI-LOCK BRAKE SYSTEM MESSAGE OR MALFUNCTIONING INDICATOR LIGHT DISPLAYING IN DRIVER'S INFORMATION CENTER. Read More »
GM: THERE MAY BE A PULSATION OR VIBRATION IN THE STEERING WHEEL WHILE GOING DOWNHILL. THERE COULD ALSO BE A RUMBLING NOISE. THIS IS LIKELY CAUSED BY THE BRAKES. *RM Read More »
GM: THERE MAY BE A PULSATION OR VIBRATION IN THE STEERING WHEEL WHILE GOING DOWNHILL. THERE COULD ALSO BE A RUMBLING NOISE. THIS IS LIKELY CAUSED BY THE BRAKES. *RM Read More »
This Preliminary Information communication provides information to the technician about hairline cracks may be noticed in the pad friction material, when performing a brake inspection. Read More »
GM: THERE MAY BE A PULSATION OR VIBRATION IN THE STEERING WHEEL WHILE GOING DOWNHILL. THERE COULD ALSO BE A RUMBLING NOISE. THIS IS LIKELY CAUSED BY THE BRAKES. *RM Read More »
This Preliminary Information communication provides information to the technician about vehicles that have an Antilock Braking System lamp followed by a Service Stability message in the Drivers Information Center. Read More »
CHEVROLET/CADILLAC/GMC: CERTAIN VEHICLES EXPERIENCING ERRATIC OR INOPERATIVE SPEEDOMETER OR ANTI-LOCK BRAKE SYSTEM MESSAGE OR MALFUNCTIONING INDICATOR LIGHT DISPLAYING IN DRIVER'S INFORMATION CENTER. Read More »
PARKING BRAKE:CONVENTIONAL:MECHANICAL:LINKAGE AND CABLE
GMC/CADILLAC/CHEVROLET: AIR BAG READINESS LIGHT ON, SERVICE AIR BAG MESSAGE, INFLATABLE RESTRAINT SENSING AND DIAGNOSTIC MODULE (SDM) CORROSION (REPLACE SDM/CUT AND REMOVE CARPET PAD). Read More »
This Preliminary Information communication provides steps the technician will uses to diagnose and repair vehicles that have low oil pressure after an oil change with the engine Regular Production Option Code L20, L77, L94, L96, L99, L9H, ... Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLES THAT MAY HAVE A COLD ENGINE TICK NOISE FOR 50 SECONDS AT START UP. Read More »
This informational bulletin provides information on close coupled converters and there affect on newly installed engines or engines during there break in period. Read More »
CADILLAC/CHEVROLET/GMC: ON SOME VEHICLES AND/OR TRUCKS, INSTRUMENT CLUSTER WILL ILLUMINATE, AFTER AN OIL CHANGE, INDICATING LOW OIL PRESSURE AND/OR SES LAMP WILL ILLUMINATE. Read More »
GMC/CHEVROLET: ENGINES, WITH EGR SYSTEM, HAS LEAKAGE FROM EGR COOLER ENGINE COOLANT INTO THE COMBUSTION CHAMBER. MODEL 2002-15 SILVERADO, SIERRA, 2004-09 KODIAK C4500-C5500, TOPKICK C4500-C5500, 2006-15 EXPRESS, SAVANA. Read More »
This Preliminary Information communication provides information to the technician about vehicles that may have a Service Engine Soon Malfunction Indicator Lamp on or reduced engine power message. Read More »
This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that may have a Service Engine Soon Malfunction Indicator Lamp on at low mileage. Read More »
GMC/CHEVROLET: SOME VEHICLES/TRUCKS MAY EXPERIENCE A NO CRANKING OR STARTING, CAUSED BY POSSIBLE EXCESSIVE LEAKAGE FROM CYLINDER PAST EXHAUST OR INTAKE VALVE, LOW STATIC COMPRESSION, SENSOR IS DISCONNECTED, OR WHILE CRANKING, VALVE TRAIN ... Read More »
HUMMER/CADILLAC, CHEVROLET, GMC: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. ENGINE MAY HAVE REDUCED POWER, RUNNING ROUGH, AND POSSIBLE HAVE MALFUNCTION INDICATOR LAMP ON, DUE THROTTLE POSITION SENSOR. Read More »
This Preliminary Information communication provides information to the technician that some vehicles may have a Service Engine Soon lamp, engine misfire on cylinder 1, 4, 6, or 7 and/or tick noise. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have misfires on cylinders 1, 4, 6 and 7. Technician should inspect the camshaft part numbers. Read More »
CHEVROLET/GMC: AFTER COLD STARTING ENGINE AND PLACING IN GEAR, WOULD HAVE A ROUGH IDLE AND/LACK OF POWER, MOMENTARILY BEFORE STARTUP A FEW MINUTES LATER. MODELS 2009-2013 EXPRESS, SILVERADO, SUBURBAN, SAVANA, SIERRA. Read More »
This informational bulletin provides information to technicians regarding intake manifold inspection/replacement after severe internal engine damage. Read More »
This technical bulletin provides repair information for repairing the IP to body harness connector to correct a customer concern for intermittent Malfunction Indicator Lamp (MIL) illuminated with Reduced Engine Power displayed and DTC ... Read More »
This informational bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered seepage. Read More »
This informational bulletin provides information to technicians regarding intake manifold inspection/replacement after severe internal engine damage. Read More »
This Preliminary Information communication provides information to the technician that some vehicles may have a Service Engine Soon lamp, engine misfire on cylinder 1, 4, 6, or 7 and/or tick noise. Read More »
This Preliminary Information communication provides information to the technician about vehicles with Service Engine Soon Malfunction Indicator Lamp. Technician may find Diagnostic Trouble Code P0101. Read More »
This Preliminary Information communication advises the technician that the 2-Mode Drive Motor Generator Battery placed on parts restriction by General Motors Technical Assistance Center. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a an extended crank on cold start, brief rough running on cold start, black exhaust color, and/or Service Engine Soon Malfunction ... Read More »
This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that may have a no crank concern. Read More »
This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that may have a Service Engine Soon Malfunction Indicator Lamp on at low mileage. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have low oil pressure, no oil pressure, and/or engine noise. Technician will need to replace the oil pump, flush the oil cooler lines. Read More »
This Preliminary Information communication provides information to the technician about vehicles that may have a cold engine tick noise for 50 seconds at start up. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a rough idle and/or momentary lack of power after cold starting the engine and immediately placing the transmission in gear. Read More »
This informational bulletin provides information on the proper oils to use on GM vehicles including information regarding the differences of the Dexos oils. Read More »
This Preliminary Information communication provides information to the technician about vehicles with a "Service Charging System" message displayed on the Driver Information Center and/or a low voltage reading on the volt gauge during the ... Read More »
This Preliminary Information communication provides information to the technician about vehicles with Service Engine Soon Malfunction Indicator Lamp. Technician may find Diagnostic Trouble Code P0101. Read More »
GENERAL MOTORS: AN OPTIONAL ENGINE BLOCK HEATER PLUG IN FOR ONBOARD AC POWER AND WITH CONTINUOUS USAGE WILL RESULT IN SHORTING OF WIRES, OVER HEATING SYSTEM, ELECTRICAL FAILURE AND COMPARTMENT ENGINE FIRES. Read More »
GENERAL MOTORS: LOW ENGINE OIL PRESSURE, NO OIL PRESSURE, AND/OR ENGINE NOISE. THIS COULD BE THE RESULT OF A STICKING OIL PUMP PRESSURE RELIEF VALVE. *KB Read More »
GM: DIAGNOSIS AND REPAIR- MALFUNCTION INDICATOR LAMP ILLUMINATED, REDUCE ENGINE POWER MESSAGE DISPLAYED, DTC P2135 SET. ALSO INCLUDED MODEL SIERRA DENALI YEAR 2010-2011 *JS Read More »
CHEVROLET/GMC: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. ILLUMINATION OF CHECK ENGINE SOON LIGHT MAY BE CAUSED BY EVAPORATIVE EMISSION CANISTER PURGE SOLENOID VALVE NOT FUNCTIONING PROPERLY. Read More »
BUICK/CADILLAC/CHEVROLET/GMC/HUMMER/PONTIAC/SAAB: OIL CONSUMPTION AND/OR EXHAUST SMOKE-POSSIBLE PCV BAFFLE OR LIFTER CONCERN. UPON INSPECTION, OBVIOUS OIL WILL BE FOUND IN THE INTAKE MANIFOLD AND/OR PCV VACUUM TUBE. Read More »
GM: THERE IS AN INTERMITTENT ENGINE LIGHT ON DUE TO FIVE POSSIBLE INTERNAL TROUBLE CODES. THERE MAY ALSO BE AN EXTENDED CRANK AFTER FILLING THE FUEL TANK. *RM UPDATED 5/31/11. *PE UPDATED ON 06/16/2011. Read More »
GM: ON A COLD START THERE MAY BE A HARD START, BRIEF ROUGH RUNNING, BLACK EXHAUST COLOR, AND AN ENGINE LIGHT. THE SYMPTOMS DIMINISH AFTER RUNNING A WHILE. *RM Read More »
CHEVROLET/GMC: CHECK ENGINE LIGHT ON, FUEL TANK HARD TO FILL, DTCS P0442, P0446, P0455 OR P0449 SET (REPLACE EVAPORATIVE EMISSION (EVAP) VENT VALVE SOLENOID ASSEMBLY AND ADD/RELOCATE FILETER BOX USING SERVICE KIT). Read More »
PONTIAC/SATURN/BUICK/GMC/CHEVROLET/CADILLAC/HUMMER: VEHICLE START AND STALLS AFTER THEFT DETERRENT MODULE REPLACEMENT. MODEL YEARS 2006-2011. DOES NOT APPLY TO VEHICLES WITH KEYLESS ACCESS SYSTEM. Read More »
CHEVROLET/GMC: POSSIBLE ENGINE OVERHEAT OR LOSS OF COOLANT. NORMAL SI DIAGNOSTICS WILL LEAD TO INSPECTING THE WATER PUMP FOR PROPER OPERATION. WHEN WATER PUMP IS REMOVED, BE SURE TO INSPECT THE IMPELLER. Read More »
CADILLAC/CHEVROLET/GMC: LOCATIONS OF HIGH SPEED GMLAN WIRING CONCERNS. GAUGES INOPERATIVE, NO CRANK, HARSH TRANSMISSION SHIFTING, NO TRANSMISSION SHIFTING, DOOR LOCKS CYCLING AND INDICATORS ON. *PE UPDATED 11/17/10. Read More »
CHEVROLET/GMC: SNOW OR ICE INGESTION INTO AIR CLEANER ELEMENT, MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATED, ENGINE POWER IS REDUCED MESSAGE DISPLAYED, DTC P0101 SET (PERFORM REPAIR AS OUTLINED). Read More »
CADILLAC/CHEVROLET/GMC: SERVICE HYBRID SYSTEM MESSAGE AND OR SERVICE ENGINE SOON LAMP ON. ENGINEERING WOULD LIKE INFORMATION ON VEHICLES WITH DTC P0C19, P0C1A, P0A78, P0A79, P0C0B, P0C0E, P0BFD, OR P0BFE. Read More »
GMC\CHEVROLET SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. SERVICE ENGINE SOON LIGHT ILLUMINATED-EXHAUST GAS RECIRCULATION (EGR) COOLER PLUGGING PREVENTION. *PE Read More »
DIAGNOSTIC INFORMATION ON MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATED WITH DTCS P0442,P0446, P0451, P0452, P0453, P0454, P0455 AND REPLACEMENT OF FUEL TANK PRESSURE (FTP) SENSOR/MODULE. *PE Read More »
GMC: OIL LEAK AT TURBOCHARGER AIR INTAKE PIPE. INITIAL INSPECTION MA REVEAL A LEAK THAT LOOKS AS IT IS COMING FROM THE REAR OF THE ENGINE. *PE Read More »
GM: AN 'ENGINE POWER IS REDUCED' MESSAGE APPEARS AND THERE IS A STORED TROUBLE CODE. THIS IS CAUSED BY WEAR OF THE INTERNAL FUEL INJECTOR. *RM Read More »
CHEVROLET/GMC: SNOW OR ICE INGESTION INTO AIR CLEANER ELEMENT, MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATED, ENGINE POWER IS REDUCED MESSAGE DISPLAYED, DTC P0101 SET (PERFORM REPAIR AS OUTLINED). Read More »
GMC/CHEVROLET: DTC P0101 WITH NON GM AIR FILTER. MAY ENCOUNTER CONCERN OF REDUCED POWER AND SES LIGHT ON. DIAGNOSTICS MAY REVEAL MAF (MASS AIR FLOW) SENSOR DTC P0101. Read More »
GMC: OIL LEAK AT TURBOCHARGER AIR INTAKE PIPE. INITIAL INSPECTION MA REVEAL A LEAK THAT LOOKS AS IT IS COMING FROM THE REAR OF THE ENGINE. *PE Read More »
This Preliminary Information communication provides information to the technician about vehicles that have low oil pressure, no oil pressure, and/or engine noise. Technician will need to replace the oil pump, flush the oil cooler lines. Read More »
CHEVROLET/GMC: POSSIBLE ENGINE OVERHEAT OR LOSS OF COOLANT. NORMAL SI DIAGNOSTICS WILL LEAD TO INSPECTING THE WATER PUMP FOR PROPER OPERATION. WHEN WATER PUMP IS REMOVED, BE SURE TO INSPECT THE IMPELLER. Read More »
ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
GMC: CORRECT FRONT AXLE VENT HOSE ROUTING. THE FRONT AXLE VENT HOSE IS MOUNTED IN THE LEFT SIDE OF THE ENGINE COMPARTMENT, AND MAY NOT BE CORRECTLY ROUTED. *PE UPDATED ON 5/1/2012. *KB Read More »
This warranty administration bulletin provide policy information on a revised customer concern not duplicated/verified labor operation numbers and how to submit CCND. Read More »
This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that may have a Service Engine Soon Malfunction Indicator Lamp on at low mileage. Read More »
This Preliminary Information communication provides information to the technician about vehicles that may have a cold engine tick noise for 50 seconds at start up. Read More »
ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL
CHEVROLET/GMC: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. ILLUMINATION OF CHECK ENGINE SOON LIGHT MAY BE CAUSED BY EVAPORATIVE EMISSION CANISTER PURGE SOLENOID VALVE NOT FUNCTIONING PROPERLY. Read More »
CHEVROLET/GMC: CHECK ENGINE LIGHT ON, FUEL TANK HARD TO FILL, DTCS P0442, P0446, P0455 OR P0449 SET (REPLACE EVAPORATIVE EMISSION (EVAP) VENT VALVE SOLENOID ASSEMBLY AND ADD/RELOCATE FILETER BOX USING SERVICE KIT). Read More »
ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV)
BUICK/CADILLAC/CHEVROLET/GMC/HUMMER/PONTIAC/SAAB: OIL CONSUMPTION AND/OR EXHAUST SMOKE-POSSIBLE PCV BAFFLE OR LIFTER CONCERN. UPON INSPECTION, OBVIOUS OIL WILL BE FOUND IN THE INTAKE MANIFOLD AND/OR PCV VACUUM TUBE. Read More »
ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE)
GMC/CHEVROLET: ENGINES, WITH EGR SYSTEM, HAS LEAKAGE FROM EGR COOLER ENGINE COOLANT INTO THE COMBUSTION CHAMBER. MODEL 2002-15 SILVERADO, SIERRA, 2004-09 KODIAK C4500-C5500, TOPKICK C4500-C5500, 2006-15 EXPRESS, SAVANA. Read More »
ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR
This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that may have a Service Engine Soon Malfunction Indicator Lamp on at low mileage. Read More »
This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that may have a Service Engine Soon Malfunction Indicator Lamp on at low mileage. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a an extended crank on cold start, brief rough running on cold start, black exhaust color, and/or Service Engine Soon Malfunction ... Read More »
This Preliminary Information communication provides information to the technician that some vehicles may have a Service Engine Soon lamp, engine misfire on cylinder 1, 4, 6, or 7 and/or tick noise. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a buzz or rattle type noise during light acceleration around 1200-2000 Revolutions per minute. Read More »
GM: ON A COLD START THERE MAY BE A HARD START, BRIEF ROUGH RUNNING, BLACK EXHAUST COLOR, AND AN ENGINE LIGHT. THE SYMPTOMS DIMINISH AFTER RUNNING A WHILE. *RM Read More »
This Preliminary Information communication provides information to the technician about vehicles that may have a bump feel or clunk noise at a stop or on launch. Read More »
This Preliminary Information communication provides information to the technician about vehicles that after refueling the fuel gauge will show empty. Technician may find Diagnostic Trouble Code P2636 has set. Read More »
This Preliminary Information communication provides information to the technician about vehicles that may have a bump feel or clunk noise at a stop or on launch. Read More »
FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY:FILLER PIPE AND CAP
CHEVROLET/GMC: CHECK ENGINE LIGHT ON, FUEL TANK HARD TO FILL, DTCS P0442, P0446, P0455 OR P0449 SET (REPLACE EVAPORATIVE EMISSION (EVAP) VENT VALVE SOLENOID ASSEMBLY AND ADD/RELOCATE FILETER BOX USING SERVICE KIT). Read More »
This informational bulletin provides dealership personnel with information on flexible fuel vehicles (FFVs) and the usage of E85 fuel in GM vehicles. Read More »
This Preliminary Information communication provides information to the technician about vehicles that after refueling the fuel gauge will show empty. Technician may find Diagnostic Trouble Code P2636 has set. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a buzz or rattle type noise during light acceleration around 1200-2000 Revolutions per minute. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a groan, growl, or moan coming from the vehicle when operating the vehicle in four wheel drive. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a groan, growl, or moan coming from the vehicle when operating the vehicle in four wheel drive. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp on, engine misfire, and/or engine noise. Read More »
This Preliminary Information communication provides information to the technician about vehicle that has a squawk or grunt type noise when shifting from 2nd to 3rd gear. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a groan, growl, or moan coming from the vehicle when operating the vehicle in four wheel drive. Read More »
GM: WHEN DRIVING UPHILL THE TRANSMISSION MAY NOT SHIFT OUT OF FIRST OR WILL SLIP INTO SECOND GEAR DUE TO A TORN CLUTCH SEAL. THERE MAY BE TWO INTERNAL TROUBLE CODES STORED. *RM Read More »
POWER TRAIN:MANUAL TRANSMISSION:SHIFT PATTERN INDICATOR
This informational bulletin provides technicians with information regarding automatic transmission oil cooler flow test essential tool J-45096 TransFlow?. Read More »
This Preliminary Information communication advises the technician that the Auxiliary Transmission Fluid Pump Control Module and Auxiliary Transmission Fluid Pump placed on parts restriction by General Motors Technical Assistance Center. Read More »
This Preliminary Information communication advises the technician that the 2ML70 Transmission Assembly will be placed on restriction through the General Motors Technical Assistance Center. Read More »
GM: THERE ARE TRANSMISSION PROBLEMS THAT INCLUDE TROUBLE SHIFTING AND NOISES. THERE MAY BE SERPENTINE BELT PROBLEMS CAUSING IT. *RM UPDATED ON 06/27/2011. *KB UPDATED 3/12/12. *PE UPDATED 1/2/14. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have not engagement into drive, delayed, no engagement into reverse, and or a range inhibit. Read More »
CHEVROLET/GMC: DELAYED OR NO DRIVE AND DELAYED OR NO REVERSE WITH DTC'S, RANGE INHIBIT. MODEL YEARS 2001-2013. *PE UPDATED ON 06/08/2011. *KB UPDATED ON 06/16/2011. *KB UPDATED 11/26/12. Read More »
This Preliminary Information communication advises the technician that 2ML70 Transmission Assembly will be placed on a parts restriction through the General Motors Technical Assistance Center. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a rattle, buzz, tick, or vibration type noise that appears to be coming from the center of the dash. Read More »
This Preliminary Information communication provides information to the technician about vehicle that has a squawk or grunt type noise when shifting from 2nd to 3rd gear. Read More »
CADILLAC/CHEVROLET/GMC/HUMMER/PONTIAC: THERE IS SLIPPING OR HAVE NO FOURTH, FIFTH OR SIXTH GEAR AND MALFUNCTION INDICATOR LAMP (MIL) WOULD BE ON, WITH DIAGNOSTIC TROUBLE CODE (DTC) P0796 FOUND AS ACTIVE. Read More »
GM: TICK OR RATTLE NOISE FROM FRONT OF DASH, TRANSMISSION FILLER TUBE CRACKED OR BROKEN (INSPECT FILLER TUBE, REPLACE TUBE AS NECESSARY). *JS UPDATED 05/3/2013 *JS Read More »
CADILLAC/CHEVROLET/GMC/HUMMER: SOME SUVS AND TRUCKS ARE EXHIBITING A CONDITION WHERE BY GRINDING/RATCHETING TYPE NOISE COMING FROM AUTOMATIC TRANSMISSION WHEN SHIFTING INTO PARK WHILE IN 4WD LOW (4LO) RANGE. Read More »
CHEVROLET\CADILLAC\GMC SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. TRANSMISSION CLUTCH HOUSING FRACTURE-REPROGRAM TRANSMISSION CONTROLLER. EXCESSIVE PRESSURE ON THE TRANSMISSION CLUTCH COULD CAUSE A FRACTURE. Read More »
CADILLAC/CHEVROLET/GMC: (HYBRID) INFORMATION ON INTERNAL TRANSMISSION WIRING HARNESS REPAIRS. DIAGNOSTICS OF ANY ONE OF OR COMBINATION OF THE DTCS LISTED MAY LEAD TO A INTERNAL TRANSMISSION WIRING HARNESS CONCERN. Read More »
CADILLAC/CHEVROLET/GMC: LOCATIONS OF HIGH SPEED GMLAN WIRING CONCERNS. GAUGES INOPERATIVE, NO CRANK, HARSH TRANSMISSION SHIFTING, NO TRANSMISSION SHIFTING, DOOR LOCKS CYCLING AND INDICATORS ON. *PE UPDATED 11/17/10. Read More »
GMC: FLARE AND OR HARSH 2-3 SHIFTS. THIS CONDITION MAY BE CAUSED BY LEAKING 1-2-3-4 AND 3-5-R CLUTCH FLUID SEAL RINGS (230). MODELS CADILLACS, CHEVROLETS, GMC, HUMMERS, PONTIACS. Read More »
POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
GM: LOSS OF HIGH SPEED GMLAN COMMUNICATIONS, INTERMITTENT NO CRANK, IP GAGE FLUCTUATION, INTERMITTENT DOOR LOOK CYCLING, INTERMITTENT CHIME OPERATION, VARIOUS IP WARNING LAMPS ILLUMINATED, TRANSMISSION MAY NOT SHIFT, COMMUNICATION DTCS ... Read More »
POWER TRAIN:AUTOMATIC TRANSMISSION:COOLING UNIT AND LINES
This informational bulletin provides technicians with information regarding automatic transmission oil cooler flow test essential tool J-45096 TransFlow?. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have not engagement into drive, delayed, no engagement into reverse, and or a range inhibit. Read More »
POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER
This Preliminary Information communication provides information to the technician about vehicles that have a random bump, chuggle, or fishbite sensation when crowding the throttle slightly with the Torque Converter Clutch on while ... Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a groan, growl, or moan coming from the vehicle when operating the vehicle in four wheel drive. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a groan, growl, or moan coming from the vehicle when operating the vehicle in four wheel drive. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a groan, growl, or moan coming from the vehicle when operating the vehicle in four wheel drive. Read More »
GMC/CHEVROLET: BULLETIN PROVIDES INFORMATION ON THE SEAL REVISION AND THE TRANSFER CASE OUTPUT SHAFT SLINGER FOR CERTAIN MODEL YEAR TRUCKS. *PE Read More »
TRANSFER CASE WILL NOT SHIFT POSSIBLE DTC'S C0387 AND/OR C0569. ON VEHICLES EQUIPPED WITH A MAGNA TRANSFER CASE RPO NQF. *NJ UPDATED 3/15/10. *PE UPDATED ON 6/27/2011. Read More »
This warranty administration bulletin provide policy information on a revised customer concern not duplicated/verified labor operation numbers and how to submit CCND. Read More »
This Preliminary Information communication provides information to the technician about vehicles that may have a service 4WD message displayed in the Driver Information Center. Technician may find Diagnostic Trouble Code C0379. Read More »
GM: WHEN STOPPING OR ACCELERATING THERE MAY BE A CLUNK NOISE AND ITS AS IF THE VEHICLE IS BUMPED FROM BEHIND. THIS CAN BE CAUSED BY A SLIP IN THE REAR PROPSHAFT. *RM Read More »
14648A - Customer Satisfaction. Certain vehicles have a performance issue with their OnStar modules that could impact the vehicle?s battery life. Read More »
This technical bulletin provides repair information for repairing the IP to body harness connector to correct a customer concern for intermittent Malfunction Indicator Lamp (MIL) illuminated with Reduced Engine Power displayed and DTC ... Read More »
This Preliminary Information communication provides information to the technician about vehicle that may have an OnStar system that has progression tones when pressing the blue or red button. Read More »
This Preliminary Information communication provides information to the technician about vehicles with a "Service Charging System" message displayed on the Driver Information Center and/or a low voltage reading on the volt gauge during the ... Read More »
This Preliminary Information communication advises the technician that the 2-Mode Drive Motor Generator Battery placed on parts restriction by General Motors Technical Assistance Center. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have navigation or radio screen is blank or flashes on and off, no sound from speakers, and rear DVD screen inoperative. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have an instrument panel backlighting flashes, flickers or inoperative, unwanted horn activation, radio controls inoperative or unwanted ... Read More »
This Preliminary Information communication advises the technician about key and theft information for Fleet Vehicles equipped with RPO 6E2 or 6E8 and converting to fleet mode. Read More »
This Preliminary Information communication provides information to the technician about customers that are unable to override the automatic door locking feature. Technician will update the Body Control Module on 2006 to 2007 model years. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have multiple electrical concerns and or intermittent no crank. Read More »
This Preliminary Information communication provides information to the technician with the installation of Cruise Control on a vehicle which did not come equipped with the option. Read More »
This warranty administration bulletin provide policy information on a revised customer concern not duplicated/verified labor operation numbers and how to submit CCND. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a lack of brake assist after disconnecting the battery or after the 12 volts battery has run low on voltage. Read More »
This Preliminary Information communication provides information to the technician with additional vehicle speed sensor diagnostic information. Technician may encounter multiple issues when diagnosing a Vehicle Speed Sensor. Read More »
This Preliminary Information communication provides information to the technician about vehicles that if the ignition key is turned to the start position, and then released when the engine begins cranking, the engine will continue ... Read More »
This Preliminary Information communication provides information to the technician about vehicles that have an instrument panel backlighting flashes, flickers or inoperative, unwanted horn activation, radio controls inoperative or unwanted ... Read More »
This Preliminary Information communication provides information to the technician about vehicles that the cruise control being inoperative. Technician may find Diagnostic Trouble Code B3894 set in the Trailer Brake Control Module. Read More »
CADILLAC/CHEVROLET/GMC: WILL HAVE INOPERATIVE CRUISE CONTROL; INOPERATIVE OR UNWANTED ACTIVATION OF RADIO CONTROLS; BACKLIGHTING FLASHES, FLICKERS OR INOPERATIVE DUE TO POSSIBLE SHORT TO GROUND ON STEERING WHEEL COIL CONNECTOR X2. Read More »
CHEVROLET/CADILLAC/GMC: CERTAIN VEHICLES EXPERIENCING ERRATIC OR INOPERATIVE SPEEDOMETER OR ANTI-LOCK BRAKE SYSTEM MESSAGE OR MALFUNCTIONING INDICATOR LIGHT DISPLAYING IN DRIVER'S INFORMATION CENTER. Read More »
GM: J-35616-64B TERMINAL TEST PROBE AND REPLACEMENT TERMINAL. ALSO INCLUDED MODELS VERANO, REGAL, LACROSSE, CTS, SRX, VOLT, SONIC, MALIBU, IMPALA, EQUINOX, CRUZE, AVALANCHE, TAHOE SUBURBAN, SILVERADO, SIERRA, YUKON, AND TERRAIN FOR ... Read More »
GM/HUMMER/SAAB: INTERMITTENT ILLUMINATION OF MIL, SERVICE LAMPS, SERVICE MESSAGES, OR DTC SET BY VARIOUS CONTROL MODULES-DIAGNOSING AND REPAIRING FRETTING CORROSION (DISCONNECT AFFECTED CONNECTOR AND APPLY DIELECTRIC LUBRICANT). Read More »
GM: THERE MAY BE MULTIPLE ELECTRICAL ISSUES SUCH AS: NO START, STARTER STAYS ENGAGED, FOG LAMPS WON'T TURN ON, WASHING FLUID NOT SPRAYING, PARK AND REVERSE LIGHTS STAY ON, BATTERY GOES DEAD, AND A BUZZ NOISE UNDERNEATH THE DASH. Read More »
GENERAL MOTORS: DURING NORMAL DIAGNOSTICS AND/OR REPAIR VERIFICATION THE ABS LIGHT, TRACTION CONTROL AND/OR STABILITRAK INDICATORS MAY BE ON WITH NO DTC'S DISPLAYED BY THE EBCM. *PE UPDATED 11/17/10. *PE UPDATED 3/14/11. Read More »
CHEVROLET/GMC: INSPECT FOR WIRE HARNESS CHAFES NEAR CONNECTOR X108. DEALER MAY ENCOUNTER A CONCERN OF THE SES LIGHT ON WITH REDUCED POWER. DIAGNOSTICS MAY REVEAL DTC'S P0193, P0522 AND/OR P0652. Read More »
CHEVROLET/CADILLAC/GMC: SIR MIL WITH DTC B0081. CAN BE SET IN THE SDM AND PPS. IN MOST CASES, THIS DTC WILL SET DUE TO A COMMUNICATION FAULT AND DOES NOT ALWAYS REQUIRE A MODULE REPLACEMENT. Read More »
This Preliminary Information communication provides the technician with the additional steps that are needed to help perform a successful brake bleed on the 2-Mode Hybrid with Regular Production Option Code HP2. Read More »
CADILLAC/CHEVROLET/GMC: LOSS OF PROPULSION, WHEN SPEED IS LESS THAN 5 KM/H (3MPH), SERVICE HYBRID SYSTEM IS DISPLAYED IN DRIVER INFORMATION CENTER (DIC) AND MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATES. Read More »
This Preliminary Information communication advises the technician that the 2-Mode Drive Motor Generator Battery placed on parts restriction by General Motors Technical Assistance Center. Read More »
This Preliminary Information communication provides information to the technician about vehicles that may have a no crank condition after the vehicle has had very low accessory battery voltage or a dead battery condition. Read More »
GMC/CHEVROLET: SEE DOCUEMTN SEARCH BUTTON FOR OWNER LETTER. AUXILIARY BATTERY FEED MAY CAUSE FUSIBLE LINK TO MELT AND OPEN CIRCUIT TO PREVENT DAMAGE OR FIRE IN WIRING HARNESS, DUE TO ELECTRICAL OVER LOAD. Read More »
GM: THERE MAY BE MULTIPLE ELECTRICAL ISSUES SUCH AS: NO START, STARTER STAYS ENGAGED, FOG LAMPS WON'T TURN ON, WASHING FLUID NOT SPRAYING, PARK AND REVERSE LIGHTS STAY ON, BATTERY GOES DEAD, AND A BUZZ NOISE UNDERNEATH THE DASH. Read More »
GMC/CHEVROLET/CADILLAC: SIR MIL ON WITH DTC B1325 SYM 03. DURING A LOW BATTERY/VOLTAGE CONDITION THE PASSENGER PRESENCE SYSTEM MAY SET A B1325 SYM 03 ALONG WITH OTHER FAULTS THAT ARE CAUSED BY THE LOW BATTER/VOLTAGE CONDITION. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have an instrument panel backlighting flashes, flickers or inoperative, unwanted horn activation, radio controls inoperative or unwanted ... Read More »
This Preliminary Information communication provides information to the technician with the installation of Cruise Control on a vehicle which did not come equipped with the option. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have an instrument panel backlighting flashes, flickers or inoperative, unwanted horn activation, radio controls inoperative or unwanted ... Read More »
GM/HUMMER/SAAB: INTERMITTENT ILLUMINATION OF MIL, SERVICE LAMPS, SERVICE MESSAGES, OR DTC SET BY VARIOUS CONTROL MODULES-DIAGNOSING AND REPAIRING FRETTING CORROSION (DISCONNECT AFFECTED CONNECTOR AND APPLY DIELECTRIC LUBRICANT). Read More »
CADILLAC/CHEVROLET/GMC: (HYBRID) INFORMATION ON INTERNAL TRANSMISSION WIRING HARNESS REPAIRS. DIAGNOSTICS OF ANY ONE OF OR COMBINATION OF THE DTCS LISTED MAY LEAD TO A INTERNAL TRANSMISSION WIRING HARNESS CONCERN. Read More »
CHEVROLET/GMC: SERVICE TRAILER BRAKE MESSAGE WITH DTC(S) C1115, C1116, C1117, AND/OR C1118 (INSPECT WIRING NEAR PARKING BRAKE PEDAL). THIS CONCERN MAY BE VERY INTERMITTENT AND CAN OCCUR WITH OR WITHOUT A TRAILER CONNECTED TO TRUCK. Read More »
GMC/CHEVROLET: CHECK TRAILER WIRING MESSAGE IN DIC POOR CONNECTIONS AT 7-WAY). THIS CONCERN COULD BE CAUSED BY A POOR CONNECTION AT THE 7-WAY TRAILER CONNECTOR. Read More »
CHEVROLET/GMC: INSPECT FOR WIRE HARNESS CHAFES NEAR CONNECTOR X108. DEALER MAY ENCOUNTER A CONCERN OF THE SES LIGHT ON WITH REDUCED POWER. DIAGNOSTICS MAY REVEAL DTC'S P0193, P0522 AND/OR P0652. Read More »
BUICK\CADILLAC\CHEVROLET\GMC\PONTIAC\SATURN SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. ONSTAR SYSTEM INOPERATIVE; REPLACE ONSTAR MODULE. Read More »
ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL
This Preliminary Information communication provides information to the technician about customer's wanting to add the factory Integrated Trailer Brake Controller Regular Production Option Code (JL1) be installed on their Full Size ... Read More »
This Preliminary Information communication provides information to the technician about vehicles that the cruise control being inoperative. Technician may find Diagnostic Trouble Code B3894 set in the Trailer Brake Control Module. Read More »
CHEVROLET/GMC: SERVICE TRAILER BRAKE MESSAGE WITH DTC(S) C1115, C1116, C1117, AND/OR C1118 (INSPECT WIRING NEAR PARKING BRAKE PEDAL). THIS CONCERN MAY BE VERY INTERMITTENT AND CAN OCCUR WITH OR WITHOUT A TRAILER CONNECTED TO TRUCK. Read More »
GMC/CHEVROLET: CHECK TRAILER WIRING MESSAGE IN DIC POOR CONNECTIONS AT 7-WAY). THIS CONCERN COULD BE CAUSED BY A POOR CONNECTION AT THE 7-WAY TRAILER CONNECTOR. Read More »
ELECTRICAL SYSTEM:WIRING:FUSES AND CIRCUIT BREAKERS
This preliminary informational bulletin adds the 2015 model year to repair information on correcting a customer concern of poor, limited, reduced Remote Keyless Entry (RKE) or Remote Vehicle Start (RVS) range. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a rough idle and/or momentary lack of power after cold starting the engine and immediately placing the transmission in gear. Read More »
This Preliminary Information communication provides information to the technician about vehicles with a "Service Charging System" message displayed on the Driver Information Center and/or a low voltage reading on the volt gauge during the ... Read More »
This Preliminary Information communication provides information to the technician about vehicles that may have a no crank condition after the vehicle has had very low accessory battery voltage or a dead battery condition. Read More »
This Preliminary Information communication provides information to the technician about vehicles that if the ignition key is turned to the start position, and then released when the engine begins cranking, the engine will continue ... Read More »
GM: THERE MAY BE MULTIPLE ELECTRICAL ISSUES SUCH AS: NO START, STARTER STAYS ENGAGED, FOG LAMPS WON'T TURN ON, WASHING FLUID NOT SPRAYING, PARK AND REVERSE LIGHTS STAY ON, BATTERY GOES DEAD, AND A BUZZ NOISE UNDERNEATH THE DASH. Read More »
CADILLAC/CHEVROLET/GMC: ON SOME VEHICLES AND/OR TRUCKS, INSTRUMENT CLUSTER WILL ILLUMINATE, AFTER AN OIL CHANGE, INDICATING LOW OIL PRESSURE AND/OR SES LAMP WILL ILLUMINATE. Read More »
This Preliminary Information communication provides information to the technician about vehicles that the speedometer needle appears to be inaccurate. Read More »
This Preliminary Information communication provides information to the technician about vehicles that the speedometer needle appears to be inaccurate. Read More »
CHEVROLET/CADILLAC/GMC: CERTAIN VEHICLES EXPERIENCING ERRATIC OR INOPERATIVE SPEEDOMETER OR ANTI-LOCK BRAKE SYSTEM MESSAGE OR MALFUNCTIONING INDICATOR LIGHT DISPLAYING IN DRIVER'S INFORMATION CENTER. Read More »
CADILLAC/CHEVROLET/GMC: LOCATIONS OF HIGH SPEED GMLAN WIRING CONCERNS. GAUGES INOPERATIVE, NO CRANK, HARSH TRANSMISSION SHIFTING, NO TRANSMISSION SHIFTING, DOOR LOCKS CYCLING AND INDICATORS ON. *PE UPDATED 11/17/10. Read More »
CADILLAC/CHEVROLET/GMC: SERVICE HYBRID SYSTEM MESSAGE AND OR SERVICE ENGINE SOON LAMP ON. ENGINEERING WOULD LIKE INFORMATION ON VEHICLES WITH DTC P0C19, P0C1A, P0A78, P0A79, P0C0B, P0C0E, P0BFD, OR P0BFE. Read More »
This Preliminary Information communication provides information to the technician that customers may inquire as to the availability of OnStar bluetooth on their vehicle. Read More »
GENERAL MOTORS: DURING NORMAL DIAGNOSTICS AND/OR REPAIR VERIFICATION THE ABS LIGHT, TRACTION CONTROL AND/OR STABILITRAK INDICATORS MAY BE ON WITH NO DTC'S DISPLAYED BY THE EBCM. *PE UPDATED 11/17/10. *PE UPDATED 3/14/11. Read More »
GM: LOW BEAM HEADLAMP BULB DIAGNOSIS/ REPLACEMENT (INSPECT BULB AND CONNECTOR). DO NOT REPLACE THE ENTIRE HEADLAMP ASSEMBLY FOR THIS CONDITION. REPLACE THE BULB AND INSPECT THE CONNECTOR. *JS UPDATED 4/7/15. Read More »
GMC: BMC FAILURE AFTER WINDSHIELD WIPER OPERATION-KEYWORDS: AJAR DOOR DOME DRIVER DIMMER FLASHER FOG HAUL HEADLIGHT HEAD HIGH HAZARD INOP INOPERATIVE LAMP LIGHT LOCK LOW NOT ON OFF POWER PARK RADIO RAP REPEAT SIGNAL SHUT SPEED STAY SWITCH ... Read More »
GMC: BMC FAILURE AFTER WINDSHIELD WIPER OPERATION-KEYWORDS: AJAR DOOR DOME DRIVER DIMMER FLASHER FOG HAUL HEADLIGHT HEAD HIGH HAZARD INOP INOPERATIVE LAMP LIGHT LOCK LOW NOT ON OFF POWER PARK RADIO RAP REPEAT SIGNAL SHUT SPEED STAY SWITCH ... Read More »
GMC: BMC FAILURE AFTER WINDSHIELD WIPER OPERATION-KEYWORDS: AJAR DOOR DOME DRIVER DIMMER FLASHER FOG HAUL HEADLIGHT HEAD HIGH HAZARD INOP INOPERATIVE LAMP LIGHT LOCK LOW NOT ON OFF POWER PARK RADIO RAP REPEAT SIGNAL SHUT SPEED STAY SWITCH ... Read More »
GMC/CHEVROLET: THE LEFT OR RIGHT REAR TAIL, STOP AND/OR TURN SIGNAL LAMPS ARE INTERMITTENTLY INOPERATIVE, OR THE TURN SIGNAL FLASHES FAST. *PE Read More »
GENERAL MOTORS: BCM CALIBRATIONS AVAILABLE TO RESTORE BULB OUTAGE DETECTION ON VEHICLES PRODUCED BY A SECOND STATE MANUFACTURER, TURN SIGNALS FLASH FAST AFTER FACTORY BOX REMOVED (UPFITTER). Read More »
GMC/CHEVROLET: THE LEFT OR RIGHT REAR TAIL, STOP AND/OR TURN SIGNAL LAMPS ARE INTERMITTENTLY INOPERATIVE, OR THE TURN SIGNAL FLASHES FAST. *PE Read More »
GENERAL MOTORS: BCM CALIBRATIONS AVAILABLE TO RESTORE BULB OUTAGE DETECTION ON VEHICLES PRODUCED BY A SECOND STATE MANUFACTURER, TURN SIGNALS FLASH FAST AFTER FACTORY BOX REMOVED (UPFITTER). Read More »
GMC: BMC FAILURE AFTER WINDSHIELD WIPER OPERATION-KEYWORDS: AJAR DOOR DOME DRIVER DIMMER FLASHER FOG HAUL HEADLIGHT HEAD HIGH HAZARD INOP INOPERATIVE LAMP LIGHT LOCK LOW NOT ON OFF POWER PARK RADIO RAP REPEAT SIGNAL SHUT SPEED STAY SWITCH ... Read More »
GMC: BMC FAILURE AFTER WINDSHIELD WIPER OPERATION-KEYWORDS: AJAR DOOR DOME DRIVER DIMMER FLASHER FOG HAUL HEADLIGHT HEAD HIGH HAZARD INOP INOPERATIVE LAMP LIGHT LOCK LOW NOT ON OFF POWER PARK RADIO RAP REPEAT SIGNAL SHUT SPEED STAY SWITCH ... Read More »
GMC: BMC FAILURE AFTER WINDSHIELD WIPER OPERATION-KEYWORDS: AJAR DOOR DOME DRIVER DIMMER FLASHER FOG HAUL HEADLIGHT HEAD HIGH HAZARD INOP INOPERATIVE LAMP LIGHT LOCK LOW NOT ON OFF POWER PARK RADIO RAP REPEAT SIGNAL SHUT SPEED STAY SWITCH ... Read More »
This Preliminary Information communication provides information to the technician about an owner that may request to have a different style mirror installed on their vehicle or request a different mirror before they purchase the vehicle. Read More »
GENERAL MOTORS: THE WINDOWS, FRONT AND REAR, WOULD BIND, POOR FIT, MISALIGNMENT, MAKES RATTLE OR SQUEAKING NOISES, MOVES SLOWLY AND IS INOPERATIVE. MODEL 2008-2014 VEHICLES AND TRUCKS. Read More »
This Preliminary Information communication provides information to the technician the steps to diagnose and repair vehicles that have windows inoperative while the engine is running but work when the engine is off. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have passenger window express down feature is inoperative. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have passenger window express down feature is inoperative. Read More »
This Preliminary Information communication provides information to the technician about an owner that may request to have a different style mirror installed on their vehicle or request a different mirror before they purchase the vehicle. Read More »
GMC: BMC FAILURE AFTER WINDSHIELD WIPER OPERATION-KEYWORDS: AJAR DOOR DOME DRIVER DIMMER FLASHER FOG HAUL HEADLIGHT HEAD HIGH HAZARD INOP INOPERATIVE LAMP LIGHT LOCK LOW NOT ON OFF POWER PARK RADIO RAP REPEAT SIGNAL SHUT SPEED STAY SWITCH ... Read More »
GMC: BMC FAILURE AFTER WINDSHIELD WIPER OPERATION-KEYWORDS: AJAR DOOR DOME DRIVER DIMMER FLASHER FOG HAUL HEADLIGHT HEAD HIGH HAZARD INOP INOPERATIVE LAMP LIGHT LOCK LOW NOT ON OFF POWER PARK RADIO RAP REPEAT SIGNAL SHUT SPEED STAY SWITCH ... Read More »
GM: DIAGNOSE AND REPAIR HVAC BLOWER FUNCTION. MAY NOT BE ANY AIR FLOW FROM THE HVAC VENTS. ONE POSSIBLE OF THIS CONDITION MAY BE THE CONTACTS IN THE HVAC JUNCTION BLOCK(S) LOCATED AT THE RIGHT SIDE OF THE INSTRUMENTAL PANEL. Read More »
GENERAL MOTORS: DIAGNOSTIC INFORMATION FOR INTERMITTENT RESTRAINTS, AIR BAG (SIR) INDICATOR/LAMP ON WITH DTC(S) B0012, B0013, B0016, B0016, B0019, B0020, B0022, B0023, B0026, B0033, B0040, B0042 OR B0044 SET. Read More »
GMC/CADILLAC/CHEVROLET: AIR BAG READINESS LIGHT ON, SERVICE AIR BAG MESSAGE, INFLATABLE RESTRAINT SENSING AND DIAGNOSTIC MODULE (SDM) CORROSION (REPLACE SDM/CUT AND REMOVE CARPET PAD). Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a Diagnostic Trouble Code B0081 in the Sensing and Diagnostic Module and Passenger Presence Sensor modules. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a Diagnostic Trouble Code B0081 in the Sensing and Diagnostic Module and Passenger Presence Sensor modules. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a Diagnostic Trouble Code B0081 in the Sensing and Diagnostic Module and Passenger Presence Sensor modules. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a Diagnostic Trouble Code B0081 in the Sensing and Diagnostic Module and Passenger Presence Sensor modules. Read More »
GM: THERE ARE SEAT BELT PROBLEMS: DIFFICULTY LATCHING AND UNLATCHING BUCKLE. BUCKLE RELEASE BUTTON IS STICKING. SEAT BELT WARNING LIGHT ILLUMINATED. LIKELY CAUSED BY STICKY BEVERAGES THAT ARE SPILLED INTO THE BUCKLE ASSEMBLY. Read More »
GM: THERE ARE SEAT BELT PROBLEMS: DIFFICULTY LATCHING AND UNLATCHING BUCKLE. BUCKLE RELEASE BUTTON IS STICKING. SEAT BELT WARNING LIGHT ILLUMINATED. LIKELY CAUSED BY STICKY BEVERAGES THAT ARE SPILLED INTO THE BUCKLE ASSEMBLY. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have water or dust from the openings under the bed rails near the stake pockets. Read More »
This Preliminary Information communication provides information to the technician about vehicles that the customer or up-fitter may have removed the rear bumper, install a different rear bumper, or add a different box/flat bed/cube ... Read More »
This Preliminary Information communication provides information to the technician about vehicles that have Diagnostic Trouble Code B2555 may be found in a Driver and/or Passenger Door Module. Read More »
GENERAL MOTORS: THE WINDOWS, FRONT AND REAR, WOULD BIND, POOR FIT, MISALIGNMENT, MAKES RATTLE OR SQUEAKING NOISES, MOVES SLOWLY AND IS INOPERATIVE. MODEL 2008-2014 VEHICLES AND TRUCKS. Read More »
This Preliminary Information communication provides information to the technician about customers that are unable to override the automatic door locking feature. Technician will update the Body Control Module on 2006 to 2007 model years. Read More »
This Preliminary Information communication provides information to the technician about vehicles that unable to program the key fobs to the vehicle. Read More »
GMC/CHEVROLET: THE PASSENGER AND/OR DRIVER DOOR MODULE COURTESY LIGHTS CALIBRATIONS ARE THE SAME, WITH OR WITHOUT, DOOR PANEL COURTESY LIGHTS. MODEL 2007-2013 AVALANCHE, SILVERADO, SUBURBAN, TAHOE, SIERRA, YUKONS. Read More »
This Preliminary Information communication provides information to the technician about vehicles that unable to program the key fobs to the vehicle. Read More »
GM: THE CHROME OUTSIDE DOOR HANDLE IS CRACKED OR LOOSE AT THE SCREW WHERE IT ATTACHES. GREASE MAY HAVE CAUSE THE SCREW TO DEGRADE OR THE TORQUE WAS TOO HIGH. *RM Read More »
This Preliminary Information communication provides information to the technician about vehicles that have tailgate may not lower slowly like the New 2014 Silverado 1500 / Sierra 1500 models. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have tailgate may not lower slowly like the New 2014 Silverado 1500 / Sierra 1500 models. Read More »
This Preliminary Information communication provides information to the technician about customers that are unable to override the automatic door locking feature. Technician will update the Body Control Module on 2006 to 2007 model years. Read More »
This Preliminary Information communication provides information to the technician about vehicles that unable to program the key fobs to the vehicle. Read More »
GM: THE FRONT OR REAR DOOR MAY NOT OPEN FROM THE INSIDE OR OUTSIDE HANDLE, THE DOOR WILL NOT UNLOCK WITH ANY METHOD. THE PROBABLY CAUSE AN INCORRECT INSTALLATION OF A HANDLE COMPONENT. *RM UPDATED ON 7/26/2013. Read More »
This Preliminary Information communication provides information to the technician about vehicles that unable to program the key fobs to the vehicle. Read More »
CADILLAC/CHEVROLET/GMC: LOCATIONS OF HIGH SPEED GMLAN WIRING CONCERNS. GAUGES INOPERATIVE, NO CRANK, HARSH TRANSMISSION SHIFTING, NO TRANSMISSION SHIFTING, DOOR LOCKS CYCLING AND INDICATORS ON. *PE UPDATED 11/17/10. Read More »
GMC: BMC FAILURE AFTER WINDSHIELD WIPER OPERATION-KEYWORDS: AJAR DOOR DOME DRIVER DIMMER FLASHER FOG HAUL HEADLIGHT HEAD HIGH HAZARD INOP INOPERATIVE LAMP LIGHT LOCK LOW NOT ON OFF POWER PARK RADIO RAP REPEAT SIGNAL SHUT SPEED STAY SWITCH ... Read More »
This Preliminary Information communication provides information to the technician about vehicles that may have a Service Engine Soon Malfunction Indicator Lamp on or reduced engine power message. Read More »
This Preliminary Information communication provides information to the technician with the installation of Cruise Control on a vehicle which did not come equipped with the option. Read More »
This Preliminary Information communication provides information to the technician with the installation of Cruise Control on a vehicle which did not come equipped with the option. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have an instrument panel backlighting flashes, flickers or inoperative, unwanted horn activation, radio controls inoperative or unwanted ... Read More »
CADILLAC/GMC/CHEVROLET: INFORMATION ON CRUISE CONTROL BEING INOPERATIVE DUE TO BPP CIRCUIT SIGNAL AND/OR TCC/CRUISE BRAKE PEDAL PARAMETERS, WHEN BRAKE PEDAL IS RELEASED BUT SHOWS APPLIED. Read More »
This warranty administration bulletin provide policy information on GM of Canada New Vehicle Limited Warranty Tire Program and Global Warranty Management (GWM) Submission Information. Read More »
This warranty administration bulletin provide policy information new tire warranty program and global warranty management submission information. Read More »
This Preliminary Information communication provides information to the technician that some owners of Heavy Duty Trucks and Utilities may ask if they can lower their tire pressures. Read More »
This Preliminary Information communication provides information to the technician about vehicles with tire sidewall irregularities. This is a visual condition that will not affect durability, reliability or performance of the tires. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have grease leaking from front hub bearings. Technician should not replace the bearing for grease purge. Read More »
This Preliminary Information communication provides information to the technician about customer's wanting to add the factory Integrated Trailer Brake Controller Regular Production Option Code (JL1) be installed on their Full Size ... Read More »
This Preliminary Information communication provides information to the technician about vehicles that are unable to set a personalized easy exit seat and/or power tilt column position and they will only move a predetermined amount. Read More »
This Preliminary Information communication provides information to the technician about vehicles that after installing the GM Accessory Heated Seat Kit, one or more of the following issues may be present the heated seat back and/or bottom ... Read More »
GM: THE DRIVER OR PASSENGER HEATED SEAT ARE INOPERATIVE. THEY ARE SLOW TO WARM OR MAY SHUT OFF. THERE ARE TROUBLE CODES SET RELATED TO THE GROUND TERMINAL HARNESS. *RM Read More »
GMC/CHEVROLET/CADILLAC: INSTRUMENT PANEL MESSAGES REGARDING STABILITRAK MESSAGE, TRACTION CONTROL MESSAGE, SERVICE BRAKE SYSTEM MESSAGE, IS OFF AND GAUGES, IN VARIOUS MODULES LOW SPEED SETTINGS, ARE INOPERATIVE. Read More »
GENERAL MOTORS: DURING NORMAL DIAGNOSTICS AND/OR REPAIR VERIFICATION THE ABS LIGHT, TRACTION CONTROL AND/OR STABILITRAK INDICATORS MAY BE ON WITH NO DTC'S DISPLAYED BY THE EBCM. *PE UPDATED 11/17/10. *PE UPDATED 3/14/11. Read More »
GMC/CHEVROLET/CADILLAC: INSTRUMENT PANEL MESSAGES REGARDING STABILITRAK MESSAGE, TRACTION CONTROL MESSAGE, SERVICE BRAKE SYSTEM MESSAGE, IS OFF AND GAUGES, IN VARIOUS MODULES LOW SPEED SETTINGS, ARE INOPERATIVE. Read More »
This Preliminary Information communication provides information to the technician that during the Pre-Delivery Inspection it may be noticed that the backup alarm is inoperative. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have Diagnostic Trouble Code B2555 may be found in a Driver and/or Passenger Door Module. Read More »
GMC: BMC FAILURE AFTER WINDSHIELD WIPER OPERATION-KEYWORDS: AJAR DOOR DOME DRIVER DIMMER FLASHER FOG HAUL HEADLIGHT HEAD HIGH HAZARD INOP INOPERATIVE LAMP LIGHT LOCK LOW NOT ON OFF POWER PARK RADIO RAP REPEAT SIGNAL SHUT SPEED STAY SWITCH ... Read More »
This Preliminary Information communication provides the technician with a list of modules to check for communication with the scan tool, if the navigation radio does not display the current Hybrid mode. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT FINDING NEEDLE BEARINGS DURING AN OIL CHANGE. TECHNICIAN WILL GAIN ACCESS TO THE ROLLER ROCKERS TO INSPECT THEM. Read More »
This Preliminary Information communication provides information to the technician about the new fluids available for axle service and clarifies usage. Technician will use the chart to determine the proper axle lubricant to use. Read More »
GM: THE CARPET IS CURLING AT THE TOP FRONT EDGE. THE CARPET WAS FOLDED PRIOR TO INSTALLATION AND WHEN INSTALLED IT CURLS BACK UP. 2007-2012 SILVERADO/SIERRA. *RM Read More »
This Preliminary Information communication provides information to the technician about vehicles that may have an issue when using Bluetooth voice recognition with an iPhone. Read More »
This informational bulletin provides information on Part Restriction and Ordering Process Information for OnStar Vehicle Communication Interface Modules (VCIM) (GMNA Only) Read More »
This informational bulletin adds the 2014 and 2015 model years to information of a language change for OnStar System (U.S. and Canada only). Read More »
The intent of this technical bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them. Read More »
This informational bulletin provides information on the Product Quality Center (PQC) assembly replacement process for Service Agents not required to contact PQC prior to assembly replacement. Read More »
This Preliminary Information communication provides information to the technician about vehicles that are travelling from Canada to the United States. While in the United States they are unable to receive Turn-by-Turn directions. Read More »
This preliminary informational bulletin adds the 2015 model year to repair information on correcting a customer concern of poor, limited, reduced Remote Keyless Entry (RKE) or Remote Vehicle Start (RVS) range. Read More »
This Preliminary Information communication provides information to the technician about vehicle that may have an OnStar system that has progression tones when pressing the blue or red button. Read More »
This Preliminary Information communication provides information to the technician the steps needed to diagnose and repair the vehicles that may have unwanted or phantom phone calls. Read More »
This Preliminary Information communication provides information to the technician about vehicles that the OnStar LED is staying on after the vehicle Retained Accessory Power has turned off and/or their Bluetooth phone stays connected ... Read More »
This Preliminary Information communication provides information to the technician about vehicles that the OnStar LED is staying on after the vehicle Retained Accessory Power has turned off and/or their Bluetooth phone stays connected ... Read More »
This Preliminary Information communication provides information to the technician about vehicles that may have "Press check to turn off motion sensor" message on the Driver Information Center. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have tailgate may not lower slowly like the New 2014 Silverado 1500 / Sierra 1500 models. Read More »
This Preliminary Information communication provides information to the technician about vehicles that unable to program the key fobs to the vehicle. Read More »
This warranty administration bulletin provide policy information on a revised customer concern not duplicated/verified labor operation numbers and how to submit CCND. Read More »
This Preliminary Information communication provides information to the technician about vehicles that for no reason the alarm will go active. Read More »
This Preliminary Information communication provides information to the technician that during the Pre-Delivery Inspection it may be noticed that the backup alarm is inoperative. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a compass that's not accurate or slow to update. Read More »
This preliminary information bulletin provides a descritption of operation of the echo control and noise cancellation settings for concernc regarding noice drop outs during calls and muffled sound. Read More »
This Preliminary Information communication provides information to the technician that customers may inquire as to the availability of OnStar bluetooth on their vehicle. Read More »
This Preliminary Information communication provides information to the technician about Electronic Brake Control Module relearn procedure is required anytime the Electronic Brake Control Module is replaced or has been Service Programming ... Read More »
This Preliminary Information communication provides information to the technician with the installation of Cruise Control on a vehicle which did not come equipped with the option. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a "Service Stability Message" appears on the Drivers Information Center. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have the content theft alarm is inoperative. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have passenger window express down feature is inoperative. Read More »
This Preliminary Information communication provides information to the technician about vehicles that unable to program the key fobs to the vehicle. Read More »
GENERAL MOTORS: DURING NORMAL DIAGNOSTICS AND/OR REPAIR VERIFICATION THE ABS LIGHT, TRACTION CONTROL AND/OR STABILITRAK INDICATORS MAY BE ON WITH NO DTC'S DISPLAYED BY THE EBCM. *PE UPDATED 11/17/10. *PE UPDATED 3/14/11. Read More »
This Preliminary Information communication advises the technician about key and theft information for Fleet Vehicles equipped with RPO 6E2 or 6E8 and converting to fleet mode. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have the content theft alarm is inoperative. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have navigation or radio screen is blank or flashes on and off, no sound from speakers, and rear DVD screen inoperative. Read More »
This preliminary information bulletin provides a descritption of operation of the echo control and noise cancellation settings for concernc regarding noice drop outs during calls and muffled sound. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have an instrument panel backlighting flashes, flickers or inoperative, unwanted horn activation, radio controls inoperative or unwanted ... Read More »
GMC: BMC FAILURE AFTER WINDSHIELD WIPER OPERATION-KEYWORDS: AJAR DOOR DOME DRIVER DIMMER FLASHER FOG HAUL HEADLIGHT HEAD HIGH HAZARD INOP INOPERATIVE LAMP LIGHT LOCK LOW NOT ON OFF POWER PARK RADIO RAP REPEAT SIGNAL SHUT SPEED STAY SWITCH ... Read More »
This informational bulletin provides information on Part Restriction and Ordering Process Information for OnStar Vehicle Communication Interface Modules (VCIM) (GMNA Only) Read More »
This Preliminary Information communication provides information to the technician about vehicle that may have an OnStar system that has progression tones when pressing the blue or red button. Read More »
This Preliminary Information communication provides information to the technician about vehicles that are travelling from Canada to the United States. While in the United States they are unable to receive Turn-by-Turn directions. Read More »
This Preliminary Information communication provides information to the technician about vehicle that may have an OnStar system that has progression tones when pressing the blue or red button. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have navigation or radio screen is blank or flashes on and off, no sound from speakers, and rear DVD screen inoperative. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a compass that's not accurate or slow to update. Read More »
BUICK\CADILLAC\CHEVROLET\GMC\PONTIAC\SATURN SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. ONSTAR SYSTEM INOPERATIVE; REPLACE ONSTAR MODULE. Read More »
This Preliminary Information communication advises the technician that the Auxiliary Transmission Fluid Pump Control Module and Auxiliary Transmission Fluid Pump placed on parts restriction by General Motors Technical Assistance Center. Read More »
This Preliminary Information communication advises the technician that the 2ML70 Transmission Assembly will be placed on restriction through the General Motors Technical Assistance Center. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp on, engine misfire, and/or engine noise. Read More »
14648A - Customer Satisfaction. Certain vehicles have a performance issue with their OnStar modules that could impact the vehicle?s battery life. Read More »
This informational bulletin provides dealership personnel with Global Warranty Management (GWM), Warranty Parts Center (WPC), and Parts Return Program information. Read More »
BUICK\CADILLAC\CHEVROLET\GMC \PONTIAC\SATURN SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. ONSTAR SYSTEM INOPERATIVE - REPLACE ONSTAR MODULE. Read More »
This warranty administration bulletin provides dealership personnel with policy and procedure requirements for essential tools that include consumable parts (U.S. Only). Read More »
This informational bulletin provides information for dealers/technicians on when and how to submit a Field Product Report (FPR) (U.S. Dealers Only). Read More »
This warranty administration bulletin provides retail and wholesale service personnel with the policies and the warranty claims submission procedures that support Labor Operation 0600014 - Suspected Tampering or Vehicle Modifications. Read More »
This informational bulletin provides dealership personnel information on unscheduled supplemental services (including flushing services and additives) and proper use of GM simplified maintenance schedules (Canada only). Read More »
This informational bulletin provides information on the PQC assembly replacement process - for dealers required to contact PQC prior to replacing an assembly (U.S. and Canada only). Read More »
This warranty administration bulletin provides information to clarify proper transaction administration of GM Dealer Empowerment Program and Goodwill Cases. Read More »
This information for Warranty administration - Changes the Service Policy and Procedures Section 1.6.2.11 and now is refered to Article 3.2. Read More »
This warranty administration bulletin provide policy information of the JOB CARD, for a repair on vehicles and what is acceptable - customer authorization; Service manager approvals and transaction authorization; Details of concern, cause ... Read More »
This Preliminary Information communication provides information to the technician about vehicles that may have "Press check to turn off motion sensor" message on the Driver Information Center. Read More »
This warranty administration bulletin provide policy information on a revised customer concern not duplicated/verified labor operation numbers and how to submit CCND. Read More »
This Preliminary Information communication provides information to the technician about vehicles that for no reason the alarm will go active. Read More »
This warranty administration bulletin provides information on the Clarification of Use for Dealer Empowerment Labor Operations and Customer Enthusiasm Read More »
This informational bulletin provides a list off all the issues revolving around new vehicles for a one stop place to find growing concerns around them. Read More »
This Preliminary Information communication provides information to the technician about vehicles that are unable to set a personalized easy exit seat and/or power tilt column position and they will only move a predetermined amount. Read More »
GM: THE CARPET IS CURLING AT THE TOP FRONT EDGE. THE CARPET WAS FOLDED PRIOR TO INSTALLATION AND WHEN INSTALLED IT CURLS BACK UP. 2007-2012 SILVERADO/SIERRA. *RM Read More »
This preliminary informational bulletin provides technicians with diagnostic tips for a customer concern of odor emanating from HVAC system. Read More »
This warranty administration bulletin provide policy information on a revised customer concern not duplicated/verified labor operation numbers and how to submit CCND. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a cold air leak on the front passenger side while driving. Read More »
CADILLAC/CHEVROLET/GMC: ORIGINAL STYLE BLOWER MOTOR ASSEMBLY IS NO LONGER AVAILABLE. A REVISED HVAC BLOWER MOTOR ASSEMBLY FOR FULL SIZE TRUCKS IS REQUIRED, WITH MODIFICATIONS, TO FUNCTION PROPERLY. *PE UPDATED 2/25/13. Read More »
This Preliminary Information communication provides information to the technician about customers may inquire about the availability of the passenger compartment air filter. Read More »
