August 4: GM Peeling Paint Class Action Lawsuit Says Recall Needed news | 20 days ago July 31: GM Duramax Diesel CP4 Fuel Pump Lawsuit Settlement news | 24 days ago July 4: Chevrolet Colorado and GMC Canyon Recalled For Fire Risk recalls | 51 days ago July 2: No Missouri GM Oil Consumption Class Action Lawsuit news | 53 days ago
GMC TSB #PIP5926A
2021 GMC Sierra 2500
TSB Document:
Affected Component: POWER TRAIN:AUTOMATIC TRANSMISSION:FLUID/LUBRICANT
- Summary
- This Preliminary information communicates that the t-case input seal, and/or the o-ring most likely is the source of the leak between the transmission and the t-case.
Click a tab for more information.