GM Service Manual Online
For 1990-2009 cars only

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 LOW TRAC message will be displayed when the traction control system is limiting wheel spin. See Low Traction Message . You may feel or hear the system working, but this is normal.

If your vehicle is in cruise control when the traction 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 Signal/Multifunction Lever .

The traction control system automatically comes on whenever you start your vehicle. The light on the traction control button will also come on to let you know the system is on. 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" under If Your Vehicle is Stuck in Sand, Mud, Ice, or Snow .


Object Number: 808311  Size: A1

To turn the system off, press the traction control button with this symbol on it, located on the instrument panel switchbank.

If the system is limiting wheel spin when you press the button, the LOW TRAC 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 briefly to let you know the system has been turned off, and will not limit wheel spin. The light on the traction control button will also go off. Adjust your driving accordingly. You can turn the system back on at any time by pressing the button again.