Chevrolet Silverado 2500, Silverado 3500; GMC Sierra 2500, Sierra 3500 (2017-2019): Equipment
Recall 21V496000 · Jul 1, 2021 · General Motors, LLC
338,020
vehicles affected
338,020
vehicles affected
Facts
- Recall number
- 21V496000
- Date
- Jul 1, 2021
- Maker
- General Motors, LLC
- Units affected
- 338,020
- Kind
- Vehicles
- Component
- Equipment > Electrical > Engine block heater
- Model years
- 2017-2019
- Started by
- The maker
- Hazard
- Fire
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.
What can happen
An electrical short-circuit can increase the risk of a fire.
The fix
Recall repairs are free of charge.
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.
Vehicles covered
4 models, 12 model years in all
| Make | Model | Model years |
|---|---|---|
| Chevrolet | Silverado 2500 | 2017-2019 |
| Chevrolet | Silverado 3500 | 2017-2019 |
| GMC | Sierra 2500 | 2017-2019 |
| GMC | Sierra 3500 | 2017-2019 |
Related pages
Questions and answers
Which vehicles are in recall 21V496000?
4 models: Chevrolet Silverado 2500 (2017-2019), Chevrolet Silverado 3500 (2017-2019), GMC Sierra 2500 (2017-2019) and 1 more, about 338,020 vehicles in all.
What is the fix for recall 21V496000?
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.
What can happen?
An electrical short-circuit can increase the risk of a fire.
A recall means the maker found a safety problem and offers a free fix; it does not mean every unit has the problem. Units affected are as reported by the company. Popular models sell more and so have more recalls and complaints. Official public data; texts are shortened. A dealer can tell whether a single vehicle still needs the repair.