Technical Service Bulletin PI1343B — 2012 GMC SIERRA DENALI
POWER TRAIN:AUTOMATIC TRANSMISSION
Bulletin Details
| TSB ID | PI1343B |
| Manufacturer | |
| Vehicle | 2012 GMC SIERRA DENALI |
| Component | POWER TRAIN:AUTOMATIC TRANSMISSION |
| Communication Date |
Bulletin Summary
This preliminary informational bulletin provides a procedure to reset the transmission adapts and test drive in additon to a transmission control module reprogram to correct a harsh or tie up feeling from 6-4 downshift
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.