Question about 1999 Cadillac DeVille

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Traction Control light comes on at high speeds?

1996 Buick Riviera - Everything is fine at low speeds-once I drive the vehicle for a while at speeds of 60-70, the traction lighst comes on & then the computer throttles down the engine, as the system is designed to do.

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Have the car check for pcm codes also,it does sounds like the speed sensor/or wheel sensors are goin bad.

Posted on Sep 08, 2009


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Per your description, it sounds as though there may be a wheel speed sensor problem or a tire that is low on air pressure.
The traction control system on your vehicle relies on four wheel speeds to determine if the vehicle is in a skid or not. If the traction control system sees one of the wheel speeds lower or higher than the rest, it thinks your in a spin or skid and will reduce power to compensate and straighten the vehicle.
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