GM Recalls, Technical Service Bulletins TSB's, Diagnostic & Repair Tips
NHTSA ID Number: 10222781 Manufacturer Communication Number: 19-NA-237 Summary This informational bulletin explains how to identify possible DEF contamination. Condition Some customers may comment on one or more of the following conditions: Cause This condition may be caused by contamination in the diesel exhaust fluid (DEF) system and it’s components. Correction Note: Please follow … Read more
NHTSA ID Number: 10111705 Manufacturer Communication Number: PIP4912E Summary This Preliminary Information communication provides information to the technician on vehicles that may have an intermittent high idle. If a technician has duplicated, or the customer description aligns with the speeds mentioned in the idle speed description tables, the idle speed should be considered a normal characteristic … Read more
NHTSA ID Number: 10161002 Manufacturer Communication Number: PIC6231D Summary This Preliminary Information communication provides information to the technician about vehicles EV range is less than expected, or the estimated EV range on the display is greater than the actual range achieved. Dealer should walk the customer though using the energy screen. The energy screen will help the … Read more
NHTSA ID Number: 10126014 Manufacturer Communication Number: GCUS-9-3664 Summary 16188 Special Coverage. Some vehicles may have a condition where increased resistance in the body control module (BCM) connection system can result in voltage fluctuations or intermittency in the brake apply sensor (BAS) circuit that can cause brake lamp malfunction. Specifically, the brake lamps may either illuminate without … Read more
NHTSA ID Number: 10113384 Manufacturer Communication Number: GCUS-3-850 Summary 17065 – Service Update. When certain vehicles, equipped with base body or chassis (RPO ZW9) and without rear vision camera ready (RPO 5F9) are shifted into reverse, the installed calibration is looking for a camera input that was not part of the requested truck build and “Service … Read more