Diagnostic Tips

Malfunction Indicator Lamp (MIL) Illuminated – DTCs P2832, P2837, P283C, P2841 and/or P2864 Set – 2020-2021 Chevrolet Corvette

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2021 Chevrolet Corvette

NHTSA ID Number: 10192035 Manufacturer Communication Number: 21NA070   Summary This service bulletin provides a procedure to perform a transmission solenoid clean procedure 3 times depending on what DTC has set.     2 Affected Products Vehicle MAKE MODEL YEAR CHEVROLET CORVETTE 2020-2021   Condition Some customers may comment that the MIL is illuminated. Some technicians may … Read more

DTC’s P05AE or P059F Set Current or History – 2020-2021 Chevrolet Silverado & GMC Sierra 2500HD/3500HD

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2021 Chevrolet Silverado

NHTSA ID Number: 10192036 Manufacturer Communication Number: 21NA071 Summary This technical bulletin provides repair information to correct a customer concern of DTC?s P05AE or P059F Set Current or History.   Condition DTC’s listed below set in current, or history.   Cause The cause of the condition may be road debris like small stones, or ice, may collect … Read more

Service Engine Mount Does Not Have an Active Mount Solenoid – DTC C11F0 and/or C11F1 Set – 2020 Chevrolet Silverado & GMC Sierra 1500

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2020 Chevrolet Silverado 1500

NHTSA ID Number: 10192037 Manufacturer Communication Number: 21NA072   Summary This informational bulletin advises the tech that the solenoid style engine mounts are being replaced with standard non solenoid mounts.     2 Affected Products Vehicles MAKE MODEL YEAR CHEVROLET SILVERADO 1500 2020 GMC SIERRA 1500 2020   Condition Some technicians may find when replacing the engine … Read more

Loss of Steering Assist – DTC U3000-49 Set – 2021 Cadillac Chevrolet GMC

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2021 Chevrolet Tahoe

NHTSA ID Number: 10192038 Manufacturer Communication Number: 21NA073   Summary This technical bulletin provides a procedure to replace the steering gear if found the cause of the customers concern.     6 Affected Products Vehicles MAKE MODEL YEAR CADILLAC ESCALADE 2021 CADILLAC ESCALADE ESV 2021 CHEVROLET SUBURBAN 2021 CHEVROLET TAHOE 2021 GMC YUKON 2021 GMC YUKON XL … Read more

Malfunction Indicator Lamp Illuminated On Driver Information Center (DIC) with DTC P0300 and/or P0299/P2227 Set – 2016-2020 Buick Envision

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2020 Buick Envision

NHTSA ID Number: 10192039 Manufacturer Communication Number: 21NA074   Summary This technical bulletin provides a procedure to replace the charge air cooler due to moisture getting inside of it and causing a malfunction indicator lamp illuminated with DTC P0300 and/or P0299/P2227.     5 Affected Products Vehicle MAKE MODEL YEAR BUICK ENVISION 2016-2020   Condition Some customers … Read more