2002 Oldsmobile Alero Owner's Manual - Page 280

Don't reset the tire pressure monitor 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 system will not work properly and may not alert you when a tire is low. Any time you adjust a tire's pressure, rotate your tires, have one or more tires repaired or replaced, or when any work is done on your vehicle where tires are removed you'll need to reset (calibrate) the tire pressure monitor system. You'll also need to reset the system whenever you buy new tires and whenever the vehicle's battery has been disconnected. To reset (calibrate) the system: 1. Turn the ignition switch to ON (engine not running). 2. Press and release the RESET button located inside of the driver's side instrument panel fuse block. See "Instrument Panel Fuse Block" in the Index. The CHANGE OIL light will begin to flash. 3. Press and release the RESET button again. The CHANGE OIL light will go off, and the LOW TIRE PRESSURE light will start flashing. 4. When the LOW TIRE PRESSURE light is flashing, press and hold the RESET button until the chime sounds. If the LOW TIRE PRESSURE light doesn't go off, repeat the procedure. If the LOW TIRE PRESSURE light still remains on, see your dealer for service. The system completes the calibration process during driving. The system normally takes 15 to 20 minutes of driving in each of three speed ranges to "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 alert you after two to eight 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 on rough roads, curves and at high speeds. The system is not capable of detection at speeds greater than 75 mph (120 km/h). 6-43