2003 Buick Rendezvous Owner's Manual - Page 278

Traction Control System (TCS) Your vehicle may have a traction control system that limits wheel spin. This is especially useful in slippery road conditions. The system operates only if it senses that one or both of the front wheels are spinning or beginning to lose traction. When this happens, the system works the front brakes and reduces engine power to limit wheel spin. The TRACTION ACTIVE message will come on when the traction control system is limiting wheel spin. See Traction Active Message on page 3-47. You may feel or hear the system working, but this is normal. if your vehicie is in cruise coctrd when the tractior; control system begins to limit wheel spin, the cruise control will automatically disengage. When road conditions allow you to safely use it again, you may reengage the cruise control. See "Cruise Control" under Turn SignaVMultifunction Lever on page 3-7. SERVICE TRACTION SYSTEM I 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 on page 3-47. When this warning message is on, the TRAC OFF iignt wiii 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 I f You Are Stuck: In Sand, Mud, Ice or Snow on page 4-32. 4-11