One problem related to brake sensor has been reported for the 2001 Chevrolet Impala. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2001 Chevrolet Impala based on all problems reported for the 2001 Impala.
The anti-lock braking system would engage when the brake pedal was depressed at low to moderate speeds. This occurred on dry pavement and seemed to extend the length of time needed to come to a complete stop. The dealership replaced the hub and sensor. The problem recurred. The hub and sensor were adjusted. The problem recurred. The dealership had to replace the wiring harness to correct the problem. Old parts were never offered in return. The repair was not covered by warranty.