Download 2005-2006 model year Pontiac G6 vehicles. Some of these vehicles have a condition where the brake lamps may not operate properly because of fretting corrosion in a wiring connector. Fretting corrosion in the connector could cause the brake lamps to illuminate when the brake pedal has not been depressed, or the lamps may not illuminate when the brake pedal is depressed. In addition, the cruise control may not engage, or greater brake pedal force may be required to shift the vehicle out of PARK. Brake lamps that are not operating properly may not warn a driver in a following vehicle of the braking status and could lead to a crash without prior warning. apply a dielectric lubricant to the connector to repair and prevent fretting corrosion.