Traction Control Operation

The TCS is part of the StabiliTrak system. Traction control limits wheel spin by reducing engine power to the wheels (engine speed management) and by applying brakes to each individual wheel (brake-traction control) as necessary.

The TCS is enabled automatically when the vehicle is started. It will activate and the StabiliTrak light will flash if it senses that any of the wheels are spinning or beginning to lose traction while driving. If traction control is turned off, only the brake-traction control portion of traction control will work. The engine speed management will be disabled. In this mode, engine power is not reduced automatically and the driven wheels can spin more freely. This can cause the brake-traction control to activate constantly.

Notice: If the wheel(s) of one axle is allowed to spin excessively while the StabiliTrak®, ABS, brake warning lights, and any relevant DIC messages are displayed, the transfer case could be damaged.

The repairs would not be covered by the vehicle warranty. Reduce engine power and do not spin the wheel(s) excessively while these lights and messages are displayed.

The TCS may activate on dry or rough roads or under conditions such as heavy acceleration while turning or abrupt upshifts/downshifts of the transmission. When this happens, a reduction in acceleration may be noticed, or a noise or vibration may be heard. This is normal.

If cruise control is being used when the system activates, the StabiliTrak light will flash and cruise control will automatically disengage. Cruise control may be reengaged when road conditions allow. See Cruise Control on page 9‑63.

StabiliTrak may also turn off automatically if it determines that a problem exists with the system.

If the problem does not clear itself after restarting the vehicle, see your dealer for service.

Non-hybrid vehicles with StabiliTrak have a Trailer Sway Control (TSC) feature. See Trailer Sway Control (TSC) on page 9‑112.

Non-hybrid vehicles with StabiliTrak have a Hill Start Assist (HSA) feature. See Hill Start Assist (HSA) on page 9‑59.

Adding non-dealer accessories can affect the vehicle's performance.

See Accessories and Modifications on page 10‑3.

    See also:

    Adding Equipment to the Airbag-Equipped Vehicle
    Adding accessories that change the vehicle's frame, bumper system, height, front end, or side sheet metal may keep the airbag system from working properly. The operation of the airbag system can also ...

    Skidding
    There are three types of skids that correspond to the vehicle's three control systems: • Braking Skid — wheels are not rolling. • Steering or Cornering Skid — too much speed or steering in a ...

    2008 GMC Acadia Review
    GMC's all-new Acadia is a full-size crossover with room for up to eight. It's a large people-mover meant to appeal to the brand's target audience: truck-buyers. Surprisingly, the Acadia pulls that ...