Buick Lacrosse 2007-2009 Tire Pressure Monitoring System
Easy to follow steps on how to reset the TPMS service maintenance indicator warning light on Buick Lacrosse for the year 2007, 2008 and 2009.
A TPMS tool, or another properly formatted TPMS scan tool, is required to perform this procedure.
1. Set the parking brake.
2. With the ignition OFF, and foot off the brake pedal, press and hold the ENGINE START/STOP button for more than five seconds.
3. Using the Driver Information Controls (touchpad), on the right side of the steering wheel, select SETTINGS, then DISPLAY OPTIONS, then TIRE PRESSURE to turn on the tire pressure info page.
4. Exit the SETTINGS menu and scroll to the TIRE PRESSURES screen, then hold down the SEL/checkmark button until the horn sounds twice and TIRE LEARNING ACTIVE is displayed on the DIC screen.
5. Starting with the LF tire, use your Tool to scan each sensor in the following order: LF, RF, RR and LR. The horn will chirp, after the vehicle has received a signal from each sensor. After activating the LR tire, the horn will chirp twice signifying the relearn is complete. The TIRE LEARNING ACTIVE message, on the DIC display screen, will go off.
6. Turn the ignition to the OFF position.
7. Inflate all tires to the pressure listed on the placard.
About Buick LaCrosse
The LaCrosse debuted in late 2004 as a 2005 model, replacing the Century and Regal. The name was borrowed from a Buick concept car shown in 2000 referencing the sport of lacrosse.
Riding on a revised version of the W-body known as MS2000, the LaCrosse was initially available with two powerplant choices in three trim levels: a 3.8 L 3800 Series III V6 available in base CX and mid-level CXL forms, and a 3.6 L HFV6 V6 in the top line CXS model. The CXS was replaced by the Super in the US market for the 2008 model year. However, sales of the CXS continued in Canada until January 1, 2008.
Power is routed to the front wheels via a 4T65-E automatic transmission (4T65-E HD on Supers). The LaCrosse, along with all other GM vehicles powered by the 3.8 L V6, became the first SULEV-compliant vehicles for 2006.
This generation of LaCrosse was sold in Canada as the Buick Allure, as the verb crosser is a French Canadian vulgarity that can mean either “masturbation” or “scam”.
The final first-generation LaCrosse was manufactured on December 23, 2008. (Source Wiki)