Unwanted Voice Recognition Activation – 2021-2022 GMC Acadia

2022 GMC Acadia

NHTSA ID Number: 10220318 Manufacturer Communication Number: 22-NA-180 Summary This technical bulletin provides repair information to correct a customer concern of Unwanted Voice Recognition Activation.   Condition Some customers may comment that while driving voice recognition will activate an unwanted “what would you like?” message.   Cause The cause of the condition may be a software anomaly … Read more

TCCM Drivability DTCs and Possible Low Battery Charge – 2019-2023 Chevrolet Silverado 4500 HD, 5500HD, 6500HD

2023 Chevrolet Silverado 6500HD

NHTSA ID Number: 10224305 Manufacturer Communication Number: PIP5853B Summary This PI communicates to dealers and technicians a possible diode issue in the TCCM, and how to properly diagnose for a diode issue.   Condition The vehicle may have a concern with the TCCM. causing DTC to set (see below) and possible a discharged battery. DTCs setting in … Read more

Yellow Tint to ZR1 Hood and Engine Cover Exposed Carbon Fiber Parts – 2019-2023 Chevrolet Corvette

2023 Chevrolet Corvette

NHTSA ID Number: 10219286 Manufacturer Communication Number: 19-NA-042 Summary This service bulletin provides information for dealers/technicians on a customer commenting on seeing a yellow tint appearance to hood and engine cover’s exposed carbon fiber parts.   Condition Some customers may comment the exposed carbon fiber engine appearance panels for the C8 generation vehicles, or the ZR1 exposed … Read more

Service Engine Soon Illuminated in Driver Information Center (DIC) and/or a Malfunctioning Fuel Gauge, DTC U0076/U18A2/P1001/P1434 or Other Message Counter Incorrect Codes Set – 2020-2022 Chevrolet Malibu

2022 Chevrolet Malibu

NHTSA ID Number: 10219289 Manufacturer Communication Number: 21-NA-186 Summary This service bulletin provides repair information to correct a customer concern of Service Engine Soon Illuminated in DIC and/or a Malfunctioning Fuel Gauge with DTC U0076/U18A2/P1001/P1434 or Other Message Counter Incorrect Codes Set.   Condition Some customers may comment on a Service Engine Soon (SES) light and/or a … Read more

Rear Wheel Lock Up, ABS Event, Loud Bang and a Flashing “D” on Driver Information Center (DIC) when Lightly or Moderately Accelerating, Forcing an 8-7 or 8-6 Downshift – 2019-2021 Cadillac Chevrolet GMC

Chevrolet GMC Cadillac

NHTSA ID Number: 10219291 Manufacturer Communication Number: 21-NA-275 Summary This service bulletin provides repair information to correct customer concerns of Rear Wheel Lock Up, ABS Event, Loud Bang and a Flashing “D” on Driver Information Center (DIC) when Lightly or Moderately Accelerating Forcing an 8-7 or 8-6 Downshift.   Condition Some customers may comment on the following … Read more