BROADER RECALL?: U.S. safety regulators are checking to see if up to 400,000 General Motors cars should be added to two recalls of just under 7,000 cars for defective air bags.
SCOPE: The probe covers Chevrolet Cruze and Sonic small cars, the Chevrolet Camaro muscle car and the Buick Verano small car from the 2012 model year. The main front driver's air bags wouldn't inflate due to a defect in the electrical connections.
SECOND LOOK: The National Highway Traffic Safety Administration said Tuesday that GM may not have fully identified the cause of the problem, so it will see if the recall should be expanded. GM is cooperating with the investigation and will answer NHTSA's questions, said company spokesman Alan Adler.