2012 Buick LaCrosse Owner Manual - Page 398

10-60 Vehicle Care 11. Proceed to the driver side rear tire, and repeat the procedure in Step 8. The horn sounds two times to indicate the sensor identification code has been matched to the driver side rear tire, and the TPMS sensor matching process is no longer active. The TIRE LEARNING ACTIVE message on the DIC display screen goes off. 12. Turn the ignition to LOCK/OFF. 13. Set all four tires to the recommended air pressure level as indicated on the Tire and Loading Information label. . 6. Press the SET/CLR button again to confirm the selection. The horn sounds twice to signal the receiver is in relearn mode and the TIRE LEARNING ACTIVE message displays on the DIC screen. 7. Start with the driver side front tire. 8. Place the relearn tool against the tire sidewall, near the valve stem. Then press the button to activate the TPMS sensor. A horn chirp confirms that the sensor identification code has been matched to this tire and wheel position. 9. Proceed to the passenger side front tire, and repeat the procedure in Step 8. 10. Proceed to the passenger side rear tire, and repeat the procedure in Step 8. Replace the tire if: . The indicators at three or more places around the tire can be seen. There is cord or fabric showing through the tire's rubber. The tread or sidewall is cracked, cut, or snagged deep enough to show cord or fabric. The tire has a bump, bulge, or split. The tire has a puncture, cut, or other damage that cannot be repaired well because of the size or location of the damage. . . . Tire Inspection We recommend that the tires, including the spare tire, if the vehicle has one, be inspected for signs of wear or damage at least once a month.