2004 Pontiac Grand Prix Owner's Manual - Page 185

SERVICE BRAKE SYSTEM This symbol appears with the SERVICE BRAKE SYSTEM warning message. SERVICE BRAKE APPLY SENSOR This message will display when the brake apply sensor is not functioning properly. The vehicle still has brakes when this warning message displays, but you should have the vehicle serviced by your dealer as soon as possible. This warning message will display only while the ignition is in RUN. Press the set/reset button to acknowledge this warning message and to clear it from the screen. This warning message will appear when the vehicle's brakes are not funtioning properly. Have the brake system serviced by your dealer as soon as possible. This warning message will display only while the ignition is in RUN. Press the set/reset button to acknowledge this warning message and to clear it from the screen. This message will continue to display if it has not been acknowledged when the engine is turned off. It will also re-display for three seconds if the message has been acknowledged, but the condition still exists when the engine is turned off. The message will re-appear when the engine is turned on and the condition still exists. This message will continue to display if it has not been acknowledged when the engine is turned off. It will also re-display for three seconds if the message has been acknowledged, but the condition still exists when the engine is turned off. The message will re-appear when the engine is turned on and the condition still exists. 3-81