2007 Saturn Ion Owner's Manual - Page 172

Anti-Lock Brake System Warning Light If your vehicle has anti-lock brakes, the anti-lock brake system (ABS) warning light will come on briefly, as a check, when you start your vehicle. If it does not, have your vehicle serviced so that the light works properly when it needs to. The ABS light is located in the instrument panel cluster, to the left of the engine coolant temperature gage. To reset the system, do the following: 1. If you are driving, pull over when it is safe to do so. 2. Be sure the vehicle is in PARK (P). 3. Turn off the ignition. 4. Then restart the engine. If the light remains on after resetting the system or comes on again while driving, your vehicle needs service. If the ABS light is on, but the regular brake system warning light is not on, the anti-lock brakes are not working properly, but the regular brakes are still functioning. Have your vehicle serviced right away. If both brake lights are on, you do not have anti-lock brakes, and there's a problem with your regular brakes as well. Have your vehicle towed for service. See Towing Your Vehicle on page 256. The anti-lock brake system warning light should come on briefly when you turn the ignition key to RUN. If the light does not come on then, have it fixed so it will be ready to warn you if there is a problem. If the light stays on longer than a few seconds after you start your engine, or comes on and stays on while you are driving, try resetting the system. 172