Service bulletin PI1343A
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
| Type | Service bulletin |
|---|---|
| NHTSA id | 10114264 |
| Published by NHTSA | 2017-08-15 |
| Manufacturer's number | PI1343A |
| Manufacturer's date | 2014-11-19 |
| NHTSA component | ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM) |
NHTSA's summary
This preliminary bulletin provides a procedure to reprogram the tcm to correct the customers concern of a harsh, tie up feeling from a 6-4 downshift.
The document
The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.
Components
Electrical system, Transmission and driveline, Automatic transmission, Software, Transmission control module
| CHEVROLET AVALANCHE | 2012 |
|---|---|
| CHEVROLET SILVERADO 2500 | 2012 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET SUBURBAN | 2012 |
| CHEVROLET TAHOE | 2012 |
| GMC SIERRA 2500 | 2012 (the catalog's model; the bulletin names a series or trim of it) |
| GMC SIERRA DENALI | 2012 (the catalog's model; the bulletin names a series or trim of it) |
| GMC YUKON | 2012 |
| GMC YUKON DENALI | 2012 (the catalog's model; the bulletin names a series or trim of it) |
| GMC YUKON DENALI XL | 2012 (the catalog's model; the bulletin names a series or trim of it) |
| GMC YUKON XL | 2012 (the catalog's model; the bulletin names a series or trim of it) |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
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