For 1990-2009 cars

The vehicle may have StabiliTrak which combines antilock brake, traction and stability control systems and helps the driver maintain directional control of the vehicle in most driving conditions.

When the vehicle is first started and driven away, the system performs several diagnostic checks to ensure there are no problems. The system may be heard or felt while it is working. This is normal and does not mean there is a problem with the vehicle. The system should initialize before the vehicle reaches 20 mph (32 km/h).

The system monitors vehicle movements, and helps the driver maintain control of the vehicle in most driving situations. When the vehicle's stability is affected the engine output is reduced, and the brakes are applied to individual wheels.

This light on the instrument panel cluster will come on briefly when the ignition is turned on.

StabiliTrak is automatically enabled whenever the vehicle is started. To assist the driver with vehicle directional control, especially in slippery road conditions, the system should always be left on. The system can be turned off if needed.

It is recommended to leave the system on for normal driving conditions, but it may be necessary to turn the system off if the vehicle is stuck in sand, mud, ice or snow, and you want to "rock" the vehicle to attempt to free it. It may also be necessary to turn off the system when driving in extreme off-road conditions where high wheel spin is required. See If Your Vehicle is Stuck in Sand, Mud, Ice, or Snow .

StabiliTrak may also turn off automatically if it determines that a problem exists with the system. The light on the instrument panel cluster will be on solid to warn the driver that StabiliTrak is disabled and requires service. If the problem does not clear after restarting the vehicle, see your dealer/retailer for service.

The switch is located on the instrument panel below the Driver Information Center (DIC).

To turn off StabiliTrak, press and hold the switch until the light in the switch illuminates.

To turn StabiliTrak on again, press the switch again or restart the vehicle.

A light in the switch should come on briefly when the ignition key is turned to ON/RUN as a check that the light is working.

Adding non-dealer/non-retailer accessories can affect the vehicle's performance. See Accessories and Modifications for more information.