Engine Wire Harness Chafing / IPC Gauges Sweep / IPC Warning Message / SES/Check Engine/MIL / No Start / No Crank / Runs Rough / Stalls / Reduced Engine Power / Various DTCs – 2019-2021 Cadillac Chevrolet GMC

2020 Chevrolet Silverado 1500

NHTSA ID Number: 10205552 Manufacturer Communication Number: 21NA149   Summary This technical bulletin provides repair information to correct a customer concern of Engine Wire Harness Chafing.   12 Affected Products Vehicles MAKE MODEL YEAR CADILLAC ESCALADE 2021 CADILLAC ESCALADE ESV 2021 CHEVROLET SILVERADO 1500 2019-2021 CHEVROLET SUBURBAN 2021 CHEVROLET TAHOE 2021 GMC SIERRA 1500 2019-2021 GMC YUKONRead more

Engineering Information – No Restart After Auto-Stop Event, No Crank, DTCs P0617, P26E6 P305D, U0102, U0284, U0285, U0672, U111A, U111E and/or U1348 – 2019-2020 Chevrolet Silverado & GMC Sierra 1500

2020 Chevrolet Silverado 1500

NHTSA ID Number: 10183785 Manufacturer Communication Number: PIE0572A   Summary This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to a no restart after auto-stop event and/or, no crank.     4 Affected Products Vehicles MAKE MODEL YEAR CHEVROLET SILVERADO 1500 2019-2020 GMC SIERRARead more

LIN Bus Diagnostic Information – 2014-2021 Buick Cadillac Chevrolet GMC

Chevrolet Buick GMC Cadillac

NHTSA ID Number: 10178380 Manufacturer Communication Number: PIT5698A Summary This Preliminary information communicates additional information on how a LIN bus operates and diagnostic tips when working on a LIN bus.     Condition As more smart motors, switches, and sensors are being used there are more Local Interconnect Network (LIN) buses on vehicles. Because of this, some … Read more

No Restart after an Auto Stop Event / No Crank / Dead Battery – 2019-2021 Chevrolet Silverado & GMC Sierra

2019 Chevrolet Silverado 1500

NHTSA ID Number: 10201279 Manufacturer Communication Number: PIT5689D   Summary This Preliminary information communicates that some customers may comment that after an auto-stop event the engine does not restart and to inspect the engine ground strap. Temporarily on hold while PIE0572 is active.  PIE0572 has now ended and reinstating the PI.     Condition Some customers may … Read more