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 drive 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.
You may feel or hear the system working, but this is normal. Leave the system on during ordinary driving so that it can operate when needed. When the ignition is turned to ON/RUN, the system automatically turns on. If the system has been turned off, it will automatically turn on at 35 mph (55 km/h). TCS cannot be turned off above 35 mph (55 km/h).
This light should come on briefly when the engine is started.
The traction control system warning light flashes and an alarm will sound intermittently when the system is limiting wheel spin.
The switch is located to the left of the steering wheel below the instrument panel cluster.
When getting the vehicle out of mud or newly fallen snow, turn off the traction control system. The system that controls engine performance interferes with the process of freeing the front wheels. To turn off traction control, press and release the switch. The traction control system warning light will come on. To turn the traction control system back on, press the switch again or increase vehicle speed and the system will automatically turn back on. The traction control system warning light will go off. See Traction Control System (TCS) Warning Light Traction Control System (TCS) Warning Light for more information.
To turn off both the traction control system and StabiliTrak®, press and hold the switch while the vehicle is stopped. The traction control system warning light and the VSC OFF light will come on. To turn the systems back on, press the switch again. If both systems are turned off, they will not turn back on automatically when vehicle speed increases.
If the VSC OFF light flashes, there is a problem in the traction control system or StabiliTrak.
Adding non-GM accessories can affect your vehicle's performance. See Accessories and Modifications Accessories and Modifications for more information.