DETROIT (AP) - General Motors recalled more than 4 million vehicles, most of them in the U.S., to fix an air bag software defect that has been linked to one death.
The vehicles involved in the recall are all from the 2014-17 model years and include models from Buick, Chevrolet, GMC and Cadillac.
The company is recalling 4.28 million vehicles worldwide, with 3.6 million being in the U.S.
The company said Friday that in rare cases, the car's sensing and diagnostic module - a tiny computer that senses what the vehicle is doing and controls air bag deployment - can go into test mode. If that happens, the front air bags won't inflate in a crash and the seat belts may not work either.
GM said the defect is linked to at least one death and three injuries.
General Motors Co. will notify customers and update the software for free. GM said dealers already have access to the software update so they should be able to repair the vehicles quickly.