- May 7: GM Transmission Lawsuit Affects Hydra-Matic 8L90 and 8L45 news | 1 days ago
- March 10: GM Trucks Suffer Automatic Emergency Braking Incidents recalls | 59 days ago
- March 4: GM to Replace Engines in 2023 Colorado, Silverado 1500, GMC Sierra 1500 news | 65 days ago
GMC TSB #15396
2015 GMC Sierra 3500
TSB Document:
Affected Component: POWER TRAIN:AUTOMATIC TRANSMISSION
- Summary
- "15396 - SERVICE UPDATE. THIS BULLETIN PROVIDES A SERVICE PROCEDURE TO INSTALL THE ORIGINAL DESIGN TEMPERATURE-SENSOR WIRING HARNESS TO THE VALVE BODY ON CERTAIN 2015 MODEL YEAR CADILLAC ESCALADE AND ESCALADE ESV; CHEVROLET SILVERADO; AND GMC SIERRA, YUKON, AND YUKON XL VEHICLES. THE SUPPLIER OF THE TRANSMISSION-WIRING HARNESS INTRODUCED AN UNAPPROVED CHANGE TO THE TEMPERATURE SENSOR (THERMISTOR), RESULTING IN INCORRECT OIL-TEMPERATURE READINGS DURING TRANSITION FROM COLD TO WARM TEMPERATURES. THIS COULD CAUSE A HARSH SHIFT WHEN STARTING THE VEHICLE AT TEMPERATURES BELOW 32ºF (0ºC); HOWEVER, SHIFT QUALITY IMPROVES ONCE THE TRANSMISSION OIL WARMS UP."
Click a tab for more information.