GM recalled an additional 7.36 million cars for what it calls "unintended ignition switch rotation."
That's the same problem at the root of an earlier recall of cars with a defective ignition switch. In February, GM recalled 2.6 million Cobalts, HHRs, Saturn Ions and other small cars with a defective ignition switch.
In both recalls, the car's ignition switch can suddenly turn off, which disables the power steering, power brakes, and air bags.
The new recall is for:
1997-2005 Chevrolet Malibu;
1998-2002 Oldsmobile Intrigue;
1999-2004 Oldsmobile Alero;
1999-2005 Pontiac Grand Am;
2000-05 Chevrolet Impala and Monte Carlo;
2004-08 Pontiac Grand Prix
2003-14 Cadillac CTS, 2004-06 Cadillac SRX
GM says customers should take everything, including the key fob, off the key ring, and drive only with the key in the ignition until repairs are done.
The automaker says it knows of seven crashes, eight injuries and three fatalities.
The fatal crashes occurred in older model full-size sedans being recalled for inadvertent ignition key rotation.
The company says there is no conclusive evidence that the defect condition caused those crashes.