GMC 2500 Pickup Problems

ABS Warning Light On and/or Erratic ABS Operation on GMC 2500 Pickup

Problem Description and Possible Solution

The anti-lock brake system (ABS) front wheel speed sensors are prone to failure. When a sensor fails, the ABS warning light may illuminate and/or the ABS system may activate erratically.

(14 people reported this problem)

GMC 2500 Pickup Vehicles With This Problem

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Average mileage: 86,508 (86,508–86,508)
11 model years affected: 1990, 1991, 1992, 1993, more1994, 1995, 1996, 1997, 1998, 1999, 2000
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Brake problem? Or maybe a faulty head gasket cylinder?
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ABS brake light on dash, tried to brake and did not have ABS brakes. Dealership confirmed that ABS controller bad.