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

by
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)

by
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

by
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

by
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. DTC P05AE – Active Grille Air Shutter 2 Performance DTC P059F- Active Grille Air Shutter 1 Performance   … Read more

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

by
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