Service bulletin PIT-4539L
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 | 10037569 |
| Published by NHTSA | 2011-05-26 |
| Manufacturer's number | PIT-4539L |
| Manufacturer's date | 2011-11-01 |
| Replaces | PIT-4539-N |
| NHTSA component | ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR |
NHTSA's summary
GM: A DRIVER MOTOR GENERATOR CONTROL MODULE IS BEING PUT ON RESTRICTION. *RM UPDATED 2/14/12. *PE
The document
No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.
Components
Electrical system, Alternator
| CADILLAC ESCALADE | 2009, 2010, 2011 |
|---|---|
| CHEVROLET SILVERADO | 2009, 2010 |
| CHEVROLET SILVERADO 1500 | 2011 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET TAHOE | 2008, 2009, 2010, 2011 |
| GMC SIERRA | 2009, 2010, 2011 |
| GMC YUKON | 2008, 2009, 2010, 2011 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| PI1404 | 2017-08-15. Service bulletin. This preliminary informational bulletin provides a diagnostic tip for low line pressure or pressure regulator valve stuck after transmission service pump cover replacement. |
|---|---|
| PIT-4539-T | 2016-08-11. Service bulletin. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION ON THE DRIVE MOTOR GENERATOR CONTROL MODULE PART RESTRICTION. DEALER WILL NEED TO CALL GM TECHNICAL ASSISTANCE CENTER FOR FURTHER INSTRUCTIONS. |