Fuel Gauge Accuracy – 2020-2021 Chevrolet Colorado & GMC Canyon

2021 Chevrolet Colorado

NHTSA ID Number: 10198885 Manufacturer Communication Number: 21NA114   Summary This technical bulletin provides repair information to correct a customer concern of Fuel Gauge accuracy issues.     4 Affected Products Vehicles MAKE MODEL YEAR CHEVROLET COLORADO 2020-2021 GMC CANYON 2020-2021   Condition Some customers may comment on one or more of the following concerns: • Fuel … Read more

Radio Software Version GB108.2 Update – 2020 Cadillac Chevrolet

2020 Chevrolet Corvette

NHTSA ID Number: 10198886 Manufacturer Communication Number: 21NA117   Summary This service bulletin provides information and programming procedures for dealers/technicians on the release of Radio Software Update Version GB108.2 for vehicles equipped with Infotainment system RPO IOS or IOT, in addition to providing general robustness and stability enhancements.     3 Affected Products Vehicles MAKE MODEL YEAR … Read more

Vibration Type Noise Heard at Highway Speeds or with Engine Speed at 1,300-1,500 RPM – 2020-2021 Cadillac Chevrolet GMC

2021 Cadillac XT6

NHTSA ID Number: 10198887 Manufacturer Communication Number: 21NA118   Summary This technical bulletin provides a procedure to align the exhaust causing a vibration.     8 Affected Products Vehicles MAKE MODEL YEAR CADILLAC XT5 2020-2021 CADILLAC XT6 2020-2021 CHEVROLET BLAZER 2020-2021 GMC ACADIA 2020-2021   Condition Some customers may comment on a vibration type noise at highway … Read more

Noise, Vibration, and/or Harshness Issues/Clunk Noise Heard During Coast Down Event – 2020-2021 Chevrolet Silverado & GMC Sierra 2500HD/3500HD

2021 Chevrolet Silverado

NHTSA ID Number: 10198888 Manufacturer Communication Number: 21NA120   Summary This technical bulletin provides the tech with a procedure to check if the transmission is the cause of the concern by checking the data.     4 Affected Products Vehicles MAKE MODEL YEAR CHEVROLET SILVERADO 2500 2020-2021 GMC SIERRA 2500 2020-2021   Condition Some technicians or customers … Read more

Malfunction Indicator Lamp (MIL) Illuminated – DTC P3055 and/or P3056 Set – 2019-2021 Chevrolet Silverado & GMC Sierra 1500

2021 Chevrolet Silverado 1500

NHTSA ID Number: 10198889 Manufacturer Communication Number: 21NA121 Summary This technical bulletin provides a procedure to inspect fuses F51DR and/or F52DR in the X51R right instrument panel fuse block when they should not be installed.     Condition Some customers may comment that the Stop/Start function is inoperative, and the MIL is illuminated. Some technicians may find … Read more