If your vehicle is equipped with the Enhanced Traction System (ETS), this warning light should come on briefly as you start the engine.
If the warning light does not come on, then have it fixed so it will be ready to warn you if there is a problem.
If the warning light stays on, or comes on when you are driving, there may be a problem with your Enhanced Traction System and your vehicle may need service. When this warning light is on, the system will not limit wheel spin. Adjust your driving accordingly.
See Enhanced Traction System (ETS) for more information.