Ford 1998 Windstar Owner's Manual page 27

Instrumentation
Auxiliary Warning Module (If equipped)
An additional bank of indicator and warning lights is located
above the driver's side vent, just to the right of the steering
wheel. The light(s) located in this module are described and
illustrated below.
The auxiliary warning module
Traction Control Active Light
This light comes on when the Traction Control system begins
applying and releasing the brakes and adjusting the engine
characteristics to limit a wheelspin condition. You may feel
some steering changes and hear some noise, but this is normal.
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