2022

Gurgling Sound While Driving At Highway Speeds After A Rain or Car Wash – 2021-2022 Cadillac Chevrolet GMC

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2021 Chevrolet Tahoe

NHTSA ID Number: 10224822 Manufacturer Communication Number: 20-NA-219 Summary This technical bulletin provides repair information to correct a customer concern of a gurgle or sloshing noise heard coming from the front sunroof drain hose areas.   Condition Some customers may comment on hearing a gurgle or sloshing noise coming from both, front right and front left, sunroof … Read more

Information on Duramax Diesel 6.6L Common Engine Noises – 2017-2023 Chevrolet Silverado & GMC Sierra

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2021 Chevrolet Silverado 1500

NHTSA ID Number: 10222651 Manufacturer Communication Number: 16-NA-372 Summary This bulletin provides information on common diesel engine tick noises and how they are considered part of normal operation and no parts should be replaced for these normal operating conditions.   41 Affected Products Vehicles MAKE MODEL YEAR CHEVROLET SILVERADO 1500 2017-2019 CHEVROLET SILVERADO 2500 2019-2023 CHEVROLET SILVERADO … Read more

Identifying Non-GM ECM Calibration Use and Power-up Hardware Detection in Duramax Diesel Engines Using GDS 2 – 2019-2023 Cadillac Chevrolet GMC

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General Motors

NHTSA ID Number: 10222660 Manufacturer Communication Number: 20-NA-090 Summary This informational bulletin provides a way for the technician to identify if the ECM has been modified.   General Motors Position on Aftermarket Power-Up Devices General Motors does not support or endorse the use of devices or modifications that when installed, increase the engine horsepower and torque. This … Read more

Front Fascia Paint Chipping at Headlamp Opening – 2019-2022 Cadillac XT4

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2020 Cadillac XT4

NHTSA ID Number: 10205055 Manufacturer Communication Number: 20NA074 Summary This service bulletin provides repair information to correct a customer concern of the front fascia paint chipping at headlamp opening. 4 Affected Products Vehicle MAKE MODEL YEAR CADILLAC XT4 2019-2022   Condition Some customers may comment on seeing the paint chipping on either, or both sides, of the … Read more

Malfunction Indicator Lamp (MIL) Illuminated – DTC P026A Set – 2020-2022 Cadillac Chevrolet GMC

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2021 Chevrolet Silverado 1500

NHTSA ID Number: 10205590 Manufacturer Communication Number: 21NA271   Summary This bulletin advises the technician of a possible coolant hose that might be kinked causing the customers concern.     18 Affected Products Vehicles MAKE MODEL YEAR CADILLAC ESCALADE 2021-2022 CADILLAC ESCALADE ESV 2021-2022 CHEVROLET SILVERADO 1500 2020-2022 CHEVROLET SUBURBAN 2021-2022 CHEVROLET TAHOE 2021-2022 GMC SIERRA 1500 … Read more