Affected models include the Buick Enclave, Chevrolet Cobalt, Chevrolet HHR, Chevrolet Malibu, Chevrolet Traverse, GMC Acadia, Pontiac G5, Pontiac G6, Saturn Aura and Saturn Outlook.
The problem has to do with a clip to the transmission cable, which may not lock into place. Therefore, the lever on the transmission may seem like it’s in the proper position when in Park, but the car might still roll away.
Dealerships will inspect the cable and replace the clip if necessary, free of charge. Owners can contact Buick at 866-608-8080, Chevrolet at 800-630-2438, GMC at 866-996-9463, Pontiac at 800-620-7668 and Saturn at 800-972-8876. They can also contact the NHTSA Vehicle Safety Hotline at 888-327-4236.