2017-19 Chevrolet Silverado HD, GMC Sierra HD Engine Block Heater: Recall Alert

2017 GMC Sierra 2500 exterior front

Cars.com photo by Matthew Barnes

By Patrick Masterson

GM is recalling more than 331,000 Chevrolet and GMC heavy-duty pickup trucks for a fire risk thanks to an optional engine block heater cord that could cause a short circuit.

Related: More Recall News

Affected trucks include model-year 2017-19 Chevy Silverado 2500s and 3500s and GMC Sierra 2500s and 3500s equipped with Duramax 6.6-liter diesel engines and the optional 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, increasing the risk of a fire.

Dealers will disable the block heater for free. Chevrolet and GMC parent GM will provide free replacement block heaters and cords under a separate customer satisfaction campaign, though for trucks under a previous recall, the heater cord will be replaced and rerouted for free. GM will begin notifying owners Aug. 16, but those with further questions can call Chevrolet at 800-222-1020, GMC at 800-462-8782, the National Highway Traffic Safety Administration’s vehicle-safety hotline at 888-327-4236 or visit its website to check their vehicle identification number and learn more.

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