The contact owns a 2002 Buick Century. While driving approximately 60 mph the ABS braking system and the track off warning lights illuminated. The contact stated that when the vehicle was turned off and back on the light did not illuminate instantly but came back on after driving a few miles. The vehicle was taken to the dealer.the technicians diagnosed the failure to be the speed sensor and the left front wheel hub that needed to be replaced. The vehicle was repaired. The approximate failure mileage was 70,000. Updated 02/18/11 the consumer stated after six months, it was finally discovered the ABS was not working properly. The consumer also stated replacing the wheel hub didn't fix the problem. The consumer stated the real problem was a wire harness that ran past a sharp edge under the air filter. The sharp edge cut into the brown or blue wire that came from the left wheel speed sensor which caused the trac off light to come on and the ABS would become disables. Updated evoq 02/18/11

- Oroville, CA, USA