2002 Buick Rendezvous Owner's Manual - Page 272

To turn the system off, press the TRAC OFF button located on the center console switchbank. United States Canada If this message comes on and stays on or comes on while you are driving, there's a problem with your traction control system. See "Service Traction System Warning Message" in the Index. When this warning message is on, the TRAC OFF light will come on to remind you that the system will not limit wheel spin. Adjust your driving accordingly. The traction control system automatically comes on whenever you start your vehicle. To limit wheel spin, especially in slippery road conditions, you should always leave the system on. But you can turn the traction control system off if you ever need to. You should turn the system off if your vehicle ever gets stuck in sand, mud or snow and rocking the vehicle is required. See "Rocking Your Vehicle" in the Index. If the system is limiting wheel spin when you press the button, the message will go off, but the system will not turn off until there is no longer a current need to limit wheel spin. The TRAC OFF light will come on to remind you the system is off. You can turn the system back on at any time by pressing the button again. The traction control system warning message should go off. 4-11