2017–2019 Chevrolet Silverado 2500, Silverado 3500 and 2017–2019 GMC Sierra 3500, Sierra 2500 recall: Equipment: electrical, engine block heater
Recall at a glance
- Campaign number
- 21V496000
- Reported
- July 1, 2021
- Manufacturer
- General Motors, LLC
- Part
- Equipment: electrical, engine block heater
- Vehicles affected
- About 338,020
What is wrong
General Motors, LLC (GM) is recalling certain 2017-2019 Chevrolet Silverado 2500, 3500 and 2017-2019 GMC Sierra 2500 and 3500 vehicles equipped with a Duramax diesel 6.6 liter engine and an optional engine-block heater cord. An electrical short-circuit may occur in the engine-block heater cable or in the terminals that connect the heater cable to the block heater.
Safety risk
An electrical short-circuit can increase the risk of a fire.
The fix
Dealers will replace engine block heaters and heater cords. Vehicles that have this feature disabled as a remedy to the safety condition will be contacted and offered replacement block heaters and heater cords under a separate customer satisfaction program, free of charge. GM will provide free replacement block heaters and cords under a separate customer satisfaction campaign. For vehicles previously included in recall 19V-328, the heater cord will be replaced and rerouted, free of charge. Interim owner notifications were mailed on August 13, 2021. Owner notification letters are expected to be mailed on April 4, 2022. Customers may call GMC customer service at 1-800-462-8782. GM's number for this recall is 212329840.
Affected models
Model years listed by NHTSA for this campaign. Only vehicles within the build range in the notice are affected.
Notes from the notice
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.
Frequently asked questions
Which vehicles are affected by this recall?
Chevrolet Silverado 2500 (2017, 2018, 2019); Chevrolet Silverado 3500 (2017, 2018, 2019); GMC Sierra 2500 (2017, 2018, 2019); GMC Sierra 3500 (2017, 2018, 2019). Check your VIN to confirm.
What is the safety risk?
An electrical short-circuit can increase the risk of a fire.
What is the fix?
Dealers will replace engine block heaters and heater cords. Vehicles that have this feature disabled as a remedy to the safety condition will be contacted and offered replacement block heaters and heater cords under a separate customer satisfaction program, free of charge. GM will provide free replacement block heaters and cords under a separate customer satisfaction campaign. For vehicles previously included in…
Source: U.S. National Highway Traffic Safety Administration (NHTSA) recall data for passenger vehicles, recalls since 2013, shown as published. This site is independent and not affiliated with NHTSA or any manufacturer. Check your VIN at nhtsa.gov/recalls and follow your manufacturer’s notice. Terms and disclaimer.