Service Heater Soon Message May Turn On with NO DTC Codes Set and NO Adverse Heater Performance Issues – 2017 Chevrolet Bolt EV

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2017 Chevrolet Bolt

NHTSA ID Number: 10192033 Manufacturer Communication Number: 21NA064   Summary This service bulletin provides repair information to correct a customer concern of a Service Heater Soon Message that may turn on with NO DTC Codes set and NO adverse heater performance issues.     1 Affected Product Vehicle MAKE MODEL YEAR CHEVROLET BOLT EV 2017   Condition … Read more

Warranty Administration – Transmitter Key Fob Warranty Replacement Requirements – GM Passenger Cars and Trucks (including Medium Duty)

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General Motors

NHTSA ID Number: 10222661 Manufacturer Communication Number: 21-NA-068 Summary This warranty administration bulletin provides policy information requirements applicable to key fob replacement under the New Vehicle Limited Warranty or under a Replacement Parts Warranty on 2017-2022 and newer model year vehicles with RPO ATH and AVJ.   379 Affected Products Vehicles MAKE MODEL YEAR BUICK CASCADA 2017-2019 … Read more

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