The U.S. National Highway Traffic Safety Administration says it is looking into possibly expanding a small recall of Pontiac G6 midsize cars to as many as 550,000 vehicles.
Three years ago, just 9,000 of the cars were recalled by General Motors because the brake lights and cruise control didn't work properly. That recall affected cars made only in January 2005.
But the NHTSA says it has subsequently received more than 200 complaints about brake lights that do not come on when brake pedals are pressed or that the lights come on when brakes are not being applied.
Complaints have also been received about cruise control disengaging unexpectedly.
NHTSA said it is considering recalling all 2005 through 2009 model years.