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2002 Chevrolet Trailblazer

Defect Investigations

There are also 13 Chevrolet recalls » 16 defect investigations » 326 TSBs » for the Chevrolet Trailblazer.

NHTSA Defect Investigation #EA04021

BRAKE LAMP FAILURE: Exterior Lighting:Brake Lights

2002 CHEVROLET TRAILBLAZER -- GM states that some brake/tail lamp bulbs can prematurely become inoperative due to malfunctioning brake/tail lamp sockets.on March 2, 2004, GM initiated a 6-year/72,000 mile "special policy" for 989,487 subject vehicles to inspect and replace the rear brake/tail lamp bulb socket assemblies.on April 4, 2004, the Office Of Defects Investigation (ODI) opened a preliminary evaluation (PE04-032) based on consumer complaints alleging brake lights not operating when the brake pedal is depressed.on August 3, 2004 ODI upgraded PE04-032 to an engineering analysis (EA04-021).by letter dated October 27, 2004 GM notified NHTSA that it will conduct a safety recall (NHTSA # 04V527) covering subject vehicles that were not already repaired under GM's "special policy."MY 2004 subject vehicles built after August 8, 2003 contain improved brake lamp assemblies and are not included in the recall.GM dealers will install the improved brake lamp assembly on subject vehicles built on August 8, 2003 and earlier.the action taken by GM is sufficient to resolve the issues raised by this investigation.accordingly, this investigation is closed. Investigation was initiated on August 03 2004. Closed on November 04 2004. For detailed information & supporting documents, see the official NHTSA page concerning investigation #EA04021 »

NHTSA Defect Investigation #PE04032

BRAKE LAMP FAILURE: Exterior Lighting:Brake Lights

2002 CHEVROLET TRAILBLAZER -- The Office Of Defects Investigation (ODI) opened this investigation on model year (MY) 2002-04 Chevrolet trailblazer vehicles.GM reports that other vehicles sharing this platform and brake lamp design are the MY 2002-2004 Chevrolet trailblazer ext; GMC Envoy, xl, xuv; Oldsmobile Bravada and 2004 Buick rainier.complaints allege that the rear brake lamp does not operate when the brake pedal is depressed.there is no indication to the driver from inside the vehicle that one or more brake lamps bulbs are not functioning.GM found that heat from the bulb could deform the lamp socket, produce electrical arcing and an inoperative bulb.to correct the condition, GM changed the bulb to a bulb that transmits less heat to the socket and changed the socket to a thermoplastic polymer to improve thermal stability.these changes were implemented into production vehicles on October 1, 2003.GM implemented a "special policy" by notifying consumers that if they should experience a brake lamp failure to go to their GM dealership to have the circuit board containing the brake lamp replaced along with new bulbs.this policy is good for the first 6 years or 72,000 miles of the life of the vehicle.ODI will upgrade this investigation to ea 04-021 and include the above mentioned vehicles. Investigation was initiated on April 06 2004. Closed on August 03 2004. For detailed information & supporting documents, see the official NHTSA page concerning investigation #PE04032 »

NHTSA Defect Investigation #EA07009

FUEL PUMP MODULE LEAKS GASOLINE: Fuel System, Gasoline:Delivery:Fuel Pump

2002 CHEVROLET TRAILBLAZER -- ODI has received reports that the fuel pump module leaks fuel and or vapor underneath the vehicle.GM states, "the failure mechanism is corrosion of the fuel pump module flange which may lead to a fuel leak.corrosion of the fuel pump module flange is the result of the vehicle operating in a corrosive environment."ODI has opened this engineering analysis to further assess this issue. Investigation was initiated on July 10 2007. For detailed information & supporting documents, see the official NHTSA page concerning investigation #EA07009 »

NHTSA Defect Investigation #PE07013

FUEL PUMP MODULE LEAKS GASOLINE: Fuel System, Gasoline:Delivery:Fuel Pump

2002 CHEVROLET TRAILBLAZER -- ODI has received reports that the fuel pump module leaks fuel and or vapor underneath the vehicle.GM states, "the failure mechanism is corrosion of the fuel pump module flange which may lead to a fuel leak.corrosion of the fuel pump module flange is the result of the vehicle operating in a corrosive environment."ODI has upgraded this PE to engineering analysis (EA07-009) to further assess this issue. Investigation was initiated on March 12 2007. Closed on July 10 2007. For detailed information & supporting documents, see the official NHTSA page concerning investigation #PE07013 »

NHTSA Defect Investigation #PE02093

2002 TRAILBLAZER/ENVOY FUEL TANK LEAKS: Fuel System, Gasoline:Storage**

** This defect investigation is filed under 2 related vehicle components.
2002 CHEVROLET TRAILBLAZER -- See attached report. Investigation was initiated on December 17 2002. Closed on April 09 2003. For detailed information & supporting documents, see the official NHTSA page concerning investigation #PE02093 »

NHTSA Defect Investigation #PE02036

PINCHER/CHAFED WIRING: Steering

2002 CHEVROLET TRAILBLAZER -- Allege that the steering column harness may become pinched, chafed, or cut and result in loss of function of certain safety devices. Investigation was initiated on March 18 2002. Closed on October 03 2002. For detailed information & supporting documents, see the official NHTSA page concerning investigation #PE02036 »

NHTSA Defect Investigation #RQ02010

FUEL FILTER QUICK CONNECT FITTING: Vehicle Speed Control:Linkages**

** This defect investigation is filed under 3 related vehicle components.
2002 CHEVROLET TRAILBLAZER -- Alleged that the fuel filter fitting may disconnect allowing fuel to be pumped onto the ground. Investigation was initiated on July 19 2002. Closed on November 21 2002. For detailed information & supporting documents, see the official NHTSA page concerning investigation #RQ02010 »

NHTSA Defect Investigation #EA04002

WINDSHIELD WIPER FAILURE: Visibility:Windshield Wiper/Washer**

** This defect investigation is filed under 4 related vehicle components.
2002 CHEVROLET TRAILBLAZER -- On September 17, 2003, the Office Of Defects Investigation (ODI) opened a preliminary evaluation (PE03-042) to investigate alleged windshield wiper failure in certain model year (MY) 2002 and 2003 Chevrolet trailblazer and trailblazer ext, GMC Envoy and Envoy xl, and Oldsmobile Bravada vehicles.the investigation was upgraded to an engineering analysis on January 6, 2004, and the scope was expanded to include certain MY 2003 Isuzu ascender vehicles.all subject vehicles are built on General Motors¿ gmt360 and gmt370 platforms and were originally equipped with a windshield wiper assembly referred to as the "family" design module (P/N 15171306 base, P/N 15171307 for vehicles equipped with rainsense automatic moisture sensitive wipers).water enters the windshield wiper module causing the electrical components on the control circuit board to corrode and short out, thus rendering the wiper motor/module inoperative.in November 2002, GM introduced into vehicle production a redesigned windshield wiper assembly referred to as the ¿global¿ design module (P/N 15094704 base, P/N 15094705 for vehicles equipped with rainsense) to better control water intrusion.ODI has received a total of 1,179 non-duplicative owner and field reports alleging windshield wiper failure on vehicles originally equipped with the ¿family¿ design module.by letter dated February 2, 2004, GM has notified ODI that it will conduct a safety recall (NHTSA recall no. 04V-046).accordingly, this investigation is closed. Investigation was initiated on January 06 2004. Closed on February 10 2004. For detailed information & supporting documents, see the official NHTSA page concerning investigation #EA04002 »

NHTSA Defect Investigation #PE03042

WINDSHIELD WIPER FAILURE: Visibility:Windshield Wiper/Washer**

** This defect investigation is filed under 2 related vehicle components.
2002 CHEVROLET TRAILBLAZER -- The subject vehicles (Chevrolet trailblazer (ext), GMC Envoy (xl), and Oldsmobile Bravada) are built on the gmt360 and gmt370 platforms and were originally equipped with a windshield wiper assembly referred to as the ¿family¿ design module (P/N 15171306 base, P/N 15171307 for vehicles equipped with rainsense automatic moisture sensitive wipers).the windshield wiper assembly is located inside the plenum at the base of the windshield and is mounted on an incline approximately equal to the rake of the windshield.GM reports that vehicles are subject to a quality assurance water test at the assembly plant.the test exposes the vehicles to an amount of water that exceeds the plenum¿S capability to divert water away from the wiper module, allowing water to rise to a level that exceeds the height of the windshield wiper motor cover vent hole.water enters through the vent hole then flows down to the bottom of the module and pools causing the electrical components on the control circuit board to corrode and short out, thus rendering the wiper motor/module inoperative.on November 2, 2002 GM introduced into vehicle production a redesigned windshield wiper assembly referred to as the ¿global¿ design module (P/N 15094704 base, P/N 15094705 for vehicles equipped with rainsense) that uses a polytetrafluoroethylene membrane covered vent hole to control water intrusion.there are a total of 1,172 non-duplicative owner and field reports alleging windshield wiper failure, two vehicle crashes allegedly caused by windshield wiper failure, and 43,219 warranty claims for windshield wiper assembly or wiper control module replacement on vehicles originally equipped with the ¿family¿ design module.this preliminary evaluation has been upgraded to an engineering analysis (EA04-002) to further study the scope and safety consequences of this issue. Investigation was initiated on September 17 2003. Closed on January 06 2004. For detailed information & supporting documents, see the official NHTSA page concerning investigation #PE03042 »