GM recalling640k pickups due to carpet fire risk

General Motors is recalling over 640,000 pickuptrucks worldwide because hot gas from a high-tech seat belt can set thecarpeting on fire.

Therecall covers certain 2019 and 2020 Chevrolet Silverado and GMC Sierra 1500 trucks.Also included are some 2020 Silverado and Sierra 2500 and 3500 heavy-duty pickups.All have carpet as a floor covering, and most are in North America.

GM says it uses a small explosion to move a piston that tightensthe belts before a crash. The explosion can release hot gas through an openingin a bracket, possibly setting the carpet on fire. The company reports twofires but no injuries.

Dealers will close the opening at no cost to owners. No date wasgiven for the recall to start.

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