Hybrid No Crank With Multiple Diagnostic Codes – 2008-2013 Cadillac Chevrolet GMC

2013 Cadillac Escalade

NHTSA ID Number: 10154570 Manufacturer Communication Number: PIT4811C Summary This Preliminary Information communication provides the technician with the steps on how to diagnose vehicles with a no crank with multiple Diagnostic Trouble Codes set in several different modules with Regular Production Option Code HP2. Technician will retrieve all the Diagnostic Trouble Codes that are set current in … Read more

Drive Motor Generator Belt Broken Noisy Worn Or Misaligned – 2012-2013 Buick & Chevrolet

Chevrolet Buick

NHTSA ID Number: 10113891 Manufacturer Communication Number: PIP4989D Summary This Preliminary Information communication provides the technician with the steps to diagnose and repair a vehicle with a broken, noisy, worn or misaligned Drive Motor Generator belt resulting in a no charge concern. Dealer will follow the instructions to replace the belt if broken and use a laser … Read more

Service 4WD Message DTC B2725 – 2007-2008 Chevrolet & GMC

2008 Chevrolet Silverado

NHTSA ID Number: 10114928 Manufacturer Communication Number: PIP4101B   Summary This Preliminary Information communication provides information to the technician about vehicles that have a Service 4WD light on and the system inoperative. Technician may find Diagnostic Trouble Code B2725 set. Technician will need to replace the transfer case dash switch.   15 Affected Products Vehicles MAKE MODEL … Read more

Hybrid – A/C Compressor Will Not Engage – 2008-2013 Cadillac Chevrolet GMC

2013 Chevrolet Silverado

NHTSA ID Number: 10127219 Manufacturer Communication Number: PIC6131 Summary This Preliminary Information communication provides information to the technician about vehicles that the air conditioner blows warm air. If normal diagnostics from service information does not lead to a correction and it is found that the air conditioning compressor is not engaging check for any communication codes in … Read more

Intermittent No Crank, IP Gage Fluctuation, Intermittent Door Lock Cycling, Intermittent Chime Operation, Various IP Warning Lamps Illuminated, Transmission May Not Shift, Engine May Stall, Communication DTCs – 2007-2014 Cadillac Chevrolet GMC HUMMER

2014 Chevrolet Silverado

NHTSA ID Number: 10113715 Manufacturer Communication Number: 08-07-30-021H   Summary This technical bulletin provides repair information to correct customer concerns of loss of high speed GMLAN communications, intermittent no crank, IP gauge fluctuation, intermittent door lock cycling /chime operation, various IP warning lamps illuminated, transmission may not shift, communication DTCs U0073, U0100, U0101, U0102, U0109, U0121 or … Read more