1996 Pontiac Bonneville Owner's Manual - Page 116

Brake System Warning Light If the warninglight comes on, there could be a brake problem. Haveyour brake system inspected right away. This light should come on when you turn the ignition key toSTART. If it doesn't come on then, havefixed it so it will be ready to warn you if there's a problem. A CAUTION: Your brake system may not be working properly if the brake system warning light is on. Driving with the brake system warning light on can lead to an accident. If the lightstill on after you've is pulled off the road and stopped carefully, have the vehicle towed for service. ,BRAKE () a If the light and chime come while you are driving, on pull off the road and stop carefully. may notice that You the pedalis harder to push. Or, the pedal maycloser go to the floor. It may take longer to stop. the lightis still If on, have the vehicle towed service. (See "Towing for You Vehicle" in the Index.) When the ignition on, the brake system warning light is will also comeon when you set your parking brake. The light will stay on if your parking brike doesn't release fully. If you try to driveoff with the parking brake set, a chime will also come on until you release the parking brake. If the light and chime stay on after your parking brakeis fully released,it means you have a brake problem.