Why GM is probing 2.7 million GM trucks and SUVs

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NHTSA received 111 customer complaints about brakes in trucks and SUVs. Photo credit: BLOOMBERG

US highway security researchers question an alleged defect in 2.7 million pickups and SUVs built by General Motors that collide because drivers have problems with brakes.

The National Highway Traffic Safety Administration Tuesday opened an investigation into trucks and SUVs, including the best-selling Chevrolet Silverado from GM after receiving 111 consumer complaints. The engine brake vacuum pump in the models can deteriorate and make it difficult to stop, according to the office. There are nine crashes related to the problem and two injuries, NHTSA said.

The research concerns the model year Chevy Silverado, Suburban and Tahoe from 2014 to 2016; GMC Sierra and Yukon; and the Cadillac Escalade. GM followed field reports and other vehicle data and will work with NHTSA to further evaluate them, said Tom Wilkinson, a company spokesman.

The scale of pick-up sales from Detroit car manufacturers is such that when something goes wrong with the trucks, retrieval can be expensive. GM & # 39; s rival Ford Motor Co. cried about 2 million F-150 pickups back in September and the North American safety campaign cost the company about $ 140 million. This recall action included faulty belt tensioners that caused fires after a fall.