Your vehicle's hydraulic brake system is divided into two parts. If one part is not working, the other part can still work and stop you. For good braking, though, you need both parts working well.

This light should come on when you turn the ignition key to START. If it does not come on then, have it fixed so it will be ready to warn you if there is a problem.

If this warning light stays on after you start the engine, the parking brake may still be set or there could be a brake problem. Refer to Parking Brake to see if it is set. If the parking brake is not set, have your brake system inspected right away.

If the light comes on while you are driving and you have a LOW BRAKE FLUID message showing on the DIC, pull off the road and stop carefully. You may notice that the pedal is harder to push. Or, the pedal may go closer to the floor. It may 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.