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Unexpected ABS activation could increase stopping distance up to about 11 feet depending on the grade of the road, increasing the risk of a crash.

Service Brakes, Hydraulic — Antilock — Control Unit/Module

Summary
Some of these passenger vehicles have an electronic control unit (ECU) that may calculate a higher than actual vehicle speed because of an erratic rear-wheel speed sensor signal, and cause ABS activation where it is not needed or needed ABS activation to be extended during braking as the vehicle speed drops to about 3 mph.
Actions
Dealers will reprogram the ABS controller. Owner notification began on June 16, 2004. Owners should contact Chevrolet at 1-800-630-2438.
Documents (12)

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Date Announced
APR 19, 2004
Vehicles Affected
65,439
Chevrolet Recall #
04030
NHTSA Campaign #
04V190000
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