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4. SIERRA 3500

Recalls For 2019 GMC SIERRA 3500

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Recall #1 Issued: 2019 04 25 - Camp #20190425

This 2019 GMC SIERRA 3500 recall affects the ENGINE Manufactured by General Motors LLC from 2016-07-16 through 2019-04-18

Description Of Defect

General Motors LLC (GM) is recalling certain 2019 Chevrolet Silverado 4500, 5500 and 6500 vehicles and 2017-2019 Chevrolet Silverado 2500 and 3500 vehicles and GMC Sierra 2500 and 3500 vehicles equipped with Duramax 6.6 liter diesel engines and an optional engine-block heater. The engine block heater cord or the terminals that connect the heater cord to the block heater may short circuit and fail.

Conseqence Of Defect

A short-circuit may damage the engine components and increase the risk of fire.

Corrective Action

GM will contact owners, dealers will replace the engine block heater, free of charge. Additionally, in Chevrolet Silverado 2500 and 3500 vehicles, dealers will install a new rerouted heater cord. The recall began December 11, 2019. Owners may contact GM customer service at 1-586-596-1733. GM's number for this recall is N182206310.

Additional Notes

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.safercar.gov.

Recall #2 Issued: 2021 07 01 - Camp #20210701

This 2019 GMC SIERRA 3500 recall affects the EQUIPMENT:ELECTRICAL:ENGINE BLOCK HEATER Manufactured by General Motors, LLC

Description Of Defect

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.

Conseqence Of Defect

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

Corrective Action

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 March 17, 2022. Customers may call GMC customer service at 1-800-462-8782. GM's number for this recall is 212329840.

Additional Notes

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.