Diagnostic Tips

Slight Shudder Felt During Gear Shift at Slow Speeds Below 64 km/h (40 mp/h) with Light Throttle Application – 2018 Buick Enclave & Chevrolet Traverse

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2018 Buick Enclave

NHTSA ID Number: 10198840 Manufacturer Communication Number: 18NA091   Summary This technical bulletin provides a procedure for software update and transmission flush to correct a slight shutter felt during gear shift.     2 Affected Products Vehicles MAKE MODEL YEAR BUICK ENCLAVE 2018 CHEVROLET TRAVERSE 2018   Condition Some customers may comment on a slight shudder felt … Read more

Assist Step Running Boards Inoperable and Not Functioning with Door Operation – 2021 Chevrolet & GMC

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2021 Chevrolet Tahoe

NHTSA ID Number: 10187762 Manufacturer Communication Number: 20NA208   Summary This technical bulletin provides repair information to correct a customer concern of Assist Step Running Boards Inoperable and Not Functioning with Door Operation.   4 Affected Products Vehicles MAKE MODEL YEAR CHEVROLET SUBURBAN 2021 CHEVROLET TAHOE 2021 GMC YUKON 2021 GMC YUKON XL 2021     SEOCONTENT-START … Read more

Possible Crank No Start or Extended Crank with DTC P12A6 – 2020-2021 Cadillac Chevrolet GMC

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2021 Chevrolet Suburban

NHTSA ID Number: 10187763 Manufacturer Communication Number: 20NA218   Summary This technical bulletin provides repair information to correct a customer concern of Possible Crank No Start or Extended Crank with DTC P12A6.   13 Affected Products Vehicles MAKE MODEL YEAR CADILLAC ESCALADE 2021 CADILLAC ESCALADE ESV 2021 CHEVROLET CORVETTE 2020 CHEVROLET SILVERADO 1500 2019-2020 CHEVROLET SILVERADO 2500 … Read more

Long Range Radar setting DTC U3000 49 – 2021 Buick Cadillac Chevrolet GMC

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2021 Chevrolet Tahoe

NHTSA ID Number: 10187764 Manufacturer Communication Number: 20NA233   Summary This technical bulletin provides repair information to correct a customer concern of Long Range Radar setting DTC U3000 49.   7 Affected Products Vehicles MAKE MODEL YEAR BUICK ENVISION 2021 CADILLAC ESCALADE 2021 CADILLAC ESCALADE ESV 2021 CHEVROLET SUBURBAN 2021 CHEVROLET TAHOE 2021 GMC YUKON 2021 GMC … Read more

Radio Software Version V152 Update – 2021 Chevrolet & GMC

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2021 Chevrolet Tahoe

NHTSA ID Number: 10187765 Manufacturer Communication Number: 20NA237   Summary This service bulletin provides V152 radio software update information to correct customer concerns of various software issues.   4 Affected Products Vehicles MAKE MODEL YEAR CHEVROLET SUBURBAN 2021 CHEVROLET TAHOE 2021 GMC YUKON 2021 GMC YUKON XL 2021       SEOCONTENT-START Service Bulletin Bulletin No.: 20-NA-237 … Read more