2003 Pontaic Grand Prix SE
Asked by Bugg88 Apr 30, 2016 at 09:38 AM about the 2003 Pontiac Grand Prix SE
Question type: Maintenance & Repair
Why is the "ABS" and "Trac Off" light staying on in
my 2003 Pontaic Grand Prix SE? It was just coming
on once in a while but after a year, now it is on as
soon as i start the car up.
2 Answers
mikeatpriestlake answered 7 years ago
Sometimes a bad connection or wire right at the wheel where it connects to a speed sensor can cause this too. I had this once on a Buick and ended up a bad wheel bearing. Bearing wasn't making noise yet, but it was bad enough to screw up the sensor.
Auto_Centric answered 7 years ago
Vehicle wheel speed sensor(s) is not reporting back to the computer. You will need a scan to find out which one location, the wiring to the sensor and the sensor itself will need to be checked. Replaced simple service procedure!
