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331,000 2017-19 Chevrolet, GMC Pickups Recalled for Engine Block Heaters

gmc sierra 3500 2017 01 angle  exterior  front  mountains  towing  white jpg 2017 GMC Sierra 3500 diesel | photo by Matt Barnes

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

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Affected trucks include model-year 2017-19 Chevrolet 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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Patrick Masterson is Chief Copy Editor at He joined the automotive industry in 2016 as a lifelong car enthusiast and has achieved the rare feat of applying his journalism and media arts degrees as a writer, fact-checker, proofreader and editor his entire professional career. He lives by an in-house version of the AP stylebook and knows where semicolons can go. Email Patrick Masterson

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