This light should come on briefly when the engine is started.

If it does not come on, have it fixed so it will be ready to warn you if there is a problem.

When the ignition is on, the brake system warning light will come on when the parking brake is set. The light will stay on if the parking brake does not release fully. If it stays on after the parking brake is fully released, there is a brake problem. Have your brake system inspected immediately.

If the light comes on while driving, a chime will sound. Pull off the road and stop. The pedal might be harder to push or go closer to the floor. It might also take longer to stop. If the light is still on, have the vehicle towed for service. See Towing Your Vehicle .

Caution: The brake system might not be working properly if the brake system warning light is on. Driving with the brake system warning light on can lead to a crash. If the light is still on after the vehicle has been pulled off the road and carefully stopped, have the vehicle towed for service.