2010 Buick LaCrosse Owner's Manual - Page 255

Driving and Operating Notice: Do not repeatedly brake or accelerate heavily when TCS is off. The vehicle's driveline could be damaged. Driving on page 8‑9 for information on using TCS when driving in snowy or icy conditions. 8-35 Electronic Stability Control (ESC) The vehicle has a vehicle stability enhancement system called StabiliTrak. It is an advanced computer controlled system that assists with directional control of the vehicle in difficult driving conditions. The TCS off light comes on to indicate that the traction control system has been turned off. When TCS is switched off on AWD vehicles, the system may still make noise. This is normal and necessary with the AWD hardware on the vehicle. It might be necessary to turn the system off if the vehicle gets stuck in sand, mud or snow and rocking the vehicle is required. See If the Vehicle is Stuck on page 8‑12 for more information. See also Winter To turn the system off, press g located on the console to the right of the shifter. Press and release g and the traction control system turns off and the traction control system warning light comes on. Press g again to turn the system back on. For information on turning StabiliTrak off and on, see StabiliTrak System following in this section. Adding non‐GM accessories can affect the vehicle's performance. See Accessories and Modifications on page 9‑3 for more information. StabiliTrak activates when the computer senses a difference between the intended path and the direction the vehicle is actually traveling. StabiliTrak selectively applies braking pressure at any one of the vehicle's brakes to help steer the vehicle in the intended direction. When the stability control system activates, the Traction Control System (TCS)/StabiliTrak light flashes on the instrument panel.