2013 Buick Regal Owner Manual - Page 232

9-36 Driving and Operating Press and release the TCS/ StabiliTrak button again to turn the system back on. It may 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 9‑10. See also Winter Driving on page 9‑8 for information on using TCS when driving in snowy or icy conditions. With Interactive Drive Control System Without Interactive Drive Control System TCS can be turned off by pressing and releasing the TCS/StabiliTrak button. When TCS is turned off, i comes on, and the appropriate DIC message displays. See Ride Control System Messages on page 5‑32. With TCS turned off, the system does not limit wheel slip. Driving should be adjusted accordingly. See Traction Off Light on page 5‑20. Adding non-GM accessories can affect the vehicle performance. See Accessories and Modifications on page 10‑3. StabiliTrak® System The vehicle may have 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.