The brake lights on my '06 4cyl Malibu occassionally come on by themselves which will knock off my cruise control. Sometimes I don’t get brake lights at all. Firestone change the brake pad sensor 2x and the dealership changed some parts under the dash but the problem still exists. Can you help me?
This sounds to me like a defective brake light switch. When one steps on the brakes, the cruise control is turned off. This switch is under the dashboard and activated by the brake pedal lever. The dealer should have changed this part. It might be that the connector to the switch is allowing the wires to cross which is doing the same thing as pressing on the brake pedal. I would take it back to the dealer and let them know that it isn’t fixed.