For vehicles with this light, it should come on briefly when the ignition is turned on.
If the light does not come on, have it fixed so it will be ready to warn if there is a problem.
If the light stays on, or comes on while driving there may be a problem with the StabiliTrak system and your vehicle may need service. When this light is on, the StabiliTrak system does not assist in controlling the vehicle. Adjust your driving accordingly.
See StabiliTrak® System for more information.
When the system is active, the light will flash while the system helps control the vehicle. You may also feel or hear the system working. This is normal.