GM Service Manual Online
For 1990-2009 cars only

Your vehicle has 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 ENGAGED message will display on the Driver Information Center (DIC) when the traction control system is limiting wheel spin. See DIC Warnings and Messages . 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 .

United States


Object Number: 808577  Size: A1

Canada


Object Number: 808619  Size: A1

This warning light will come on to let you know if there is a problem with your traction control system.

See Traction Control System (TCS) Warning Light . When this warning light is on, 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 to Get It Out later in this section.


Object Number: 808558  Size: A2

To turn the system off, press the TRAC ON/OFF button located on the center console. For vehicles with a column shift lever, the button is located at the end of the shift lever.

The TRACTION OFF message will display on the Driver Information Center. If the system is limiting wheel spin when you press the button, the TRACTION OFF message will display - but the system will not turn off right away. It will wait until there is no longer a current need to limit wheel spin.

You can turn the system back on at any time by pressing the button again. The TRACTION READY message should display briefly on the Driver Information Center.

The traction control system monitors the front brake rotor temperature. If the traction control system comes on while the front brake rotors are hot due to heavy use of braking or previous traction control, the TRACTION SUSPENDED message will be displayed - but the system will not turn off right away. It will wait until there is no longer a current need to limit wheel spin. The TRACTION READY message should appear when the brake rotors are no longer hot and the traction control system will resume normal operation.