2004 Pontiac Bonneville Owner's Manual - Page 345

The check tire pressure system detects differences in tire rotation speeds that are caused by changes in tire pressure. The system can alert you about a low tire - but it does not replace normal tire maintenance. See Tires on page 5-58. When the CHECK TIRE PRESSURE message appears on the Driver Information Center (DIC) or the systems monitor TIRE PRESS light comes on, you should stop as soon as you can and check all your tires for damage. If a tire is flat, see If a Tire Goes Flat on page 5-79. Also check the tire pressure in all four tires as soon as you can. See Inflation - Tire Pressure on page 5-67. Any time you adjust a tire's pressure or have one or more tires repaired or replaced, you will need to reset (calibrate) the check tire pressure system. You will also need to reset the system whenever you rotate the tires, buy new tires and install or remove the compact spare. Do not reset the check tire pressure system without first correcting the cause of the problem and checking and adjusting the pressure in all four tires. If you reset the system when the tire pressures are incorrect, the check tire pressure system will not work properly and may not alert you when a tire is low or high. To reset (calibrate) the system with a Driver Information Center (DIC): 1. Turn the ignition switch to ON. 2. Using the MODE and SELECT buttons, change the DIC to display TIRE PRESSURE. 3. Press and hold the RESET button for about five seconds. 4. The display should change to read TIRE PRESSURE RESET. If TIRE PRESSURE RESET does not appear on the display after about five seconds, see your dealer for service. 5. When you release the button after seeing the TIRE PRESSURE RESET message, the display will change to read TIRE PRESSURE NORMAL. 5-69