2003 Buick Rendezvous Owner's Manual - Page 368

The LOW TIRE PRESSURE HOLD SET TO RESET message will appear on the Driver Information Center (DIC) and the LOW TIRE PRESSURE message will come on the message center if pressure difference (low pressure) is detected in one tire. In the following conditions, the LOW TIRE PRESSURE message may not come on even if the tire pressure is low, or it may come on when the tire pressure is actually normal: more than one tire is low, only one tire is replaced with a new tire during service, the vehicle is moving faster than 70 mph (1 13 km/h), the system is not yet calibrated, the tire treadwear is uneven, the compact spare tire is installed, tire chains are being used, or the vehicle is being driven on a rough or frozen road. If the anti-lock brake system warning light comes on, the check tire pressure system may not be working properly. See your dealer for service. Also, see Anti-Lock Brake System Warning Light on page 3-4 1. The check tire pressure system detects differences in tire rotation speeds that are caused by changes in tire pressure. The system car! a!& p u 2hnuf a !nw tire - but it doesn't replace normal tire maintenance. See Tires on page 5-55. When the LOW TIRE PRESSURE HOLD SET TO RESET message appears on the Driver Information Center and the LOW TIRE PRESSURE message comes on the message center, 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 5-66. Also check the tire pressure in all four tires as soon as you can. See Inflation -- Tire Pressure on page 5-56. Any time you adjust a tire's pressure or have one or more tires repaired or replaced, you'll need to reset (calibrate) the check tire pressure system. You'll also need to reset the system whenever you rotate the tires, buy newtires and install or removethe compact spare. Don't reset the check tire pressure system without first correcting the came of the problem m d 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 the system: 2. Press the MODE button until the DIC reads LOW TIRE PRESSURE HOLD SET TO RESET. 3. Press and hold the SET button until you hear a chime and TIRE PRESSURE RESET is displayed. 5-57