2004 Pontiac Grand Prix Owner's Manual - Page 172

CHECK TIRE PRESSURE This symbol appears with the CHECK TIRE PRESSURE warning message. When you reset the CHECK TIRE PRESSURE screen by acknowledging it, you must also reset the TIRE INFLATION MONITOR SYSTEM screen located under the option menu in the DIC. See "Tire Inflation Monitor System" in the options section under DIC Controls and Displays on page 3-45 for more information. This warning message will display while the ignition is in RUN. A chime will sound for two seconds when this message is displayed and then the screen will clear after three seconds. 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. If the vehicle has ABS brakes, this warning message will appear when the air pressure in one of the tires is too low or too high. Check the vehicle's tire pressure as soon as possible, and fill the affected tire to the appropriate level. The correct tire inflation pressure should be set to those shown on the tire-loading information label on the vehicle. See Loading Your Vehicle on page 4-35 for more information. 3-68