1998 Buick Regal Owner's Manual - Page 309

The red RESET button is located insideyour instrument panel fuse block. (It's the first button in the top row of the fuse block.) Tire Inspection and Rotation Tires should be rotated every 6,000 to 8,000 miles (10 000 to 13 000 km). Any time you notice unusual wear, rotate your tires as soon as possible and check wheel alignment. Also check for damaged tires or wheels. See "When It's Time for New Tires" and "Wheel Replacement"later in this section for more information. The purpose of regular rotation is to achieve more uniform wear for all tires on the vehicle. The first rotation is the most important. See "Scheduled Maintenance Services" in the Index for scheduled rotation intervals. The LOW TIRE light will come on and flash three times. Then itwill go off. If the light doesn't go off, see your dealer for service. The system normally takes 15 to 20 minutes of driving in each of three speed rangesto "learn" tire pressures.The speed ranges are 15 to 40 mph (25 to 65 km/h), 40 to 65 mph (65 to 105 km/h) and above 65 mph (105 km/h). When learning is complete, the system will you after alert 2-8 minutes if a tire is 12 psi (83 kPa) different from the other three tires. Detection thresholds may be higher and detection times may be longer rough roads, curves and on at high speeds.The system is not capable of detection at speeds greaterthan 70 mph (110 km/h). The system completes the calibration process during driving. 6-45