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Official recall

21V-496 recall: Chevrolet and GMC

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.

Last updated

This campaign

Campaign number
21V-496
Manufacturer
General Motors, LLC
Component
EQUIPMENT:ELECTRICAL:ENGINE BLOCK HEATER
Report received
July 1, 2021

Rigs named in this campaign

NHTSA named these model years. A model year on this list is not proof your VIN is included.

The problem

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.

The safety risk

An electrical short-circuit can increase the risk of a fire.

The remedy

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.

Dates

NHTSA received the report on July 1, 2021.

Owner notification letters are expected to be mailed on April 4, 2022.

What to do next

Check the VIN at NHTSA before you treat this campaign as yours. If the lookup shows this campaign for your VIN, call a dealer or the manufacturer named in the remedy.

Your rights with an open recall

If NHTSA shows this campaign for your VIN, these answers explain who pays and what to do if a dealer will not do the repair.

Source

This page uses the campaign text NHTSA published.

Look up 21V-496 at NHTSA

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