There are 7 owner-reported brakes complaints for the 2003 Pontiac Grand Prixin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
TL* THE CONTACT OWNS A 2003 PONTIAC GRAND PRIX. THE CONTACT STATED THAT WHILE DRIVING 35 MPH, THE BRAKES FAILED TO RESPOND WITHOUT WARNING. THE CONTACT STATED THAT THE BRAKE PEDAL WAS DEPRESSED ALL THE WAY TO THE FLOOR BOARD BUT THE VEHICLE FAILED TO STOP. THE VEHICLE WAS COASTED TO THE SIDE. THE CONTACT CALLED AN INDEPENDENT MECHANIC AND THE TECHNICIAN INFORMED THE CONTACT THAT BRAKES MALFUNCTIONED. THE VEHICLE WAS TOWED TO THE CONTACTS RESIDENCE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 90,000.
TL* THE CONTACT OWNS A 2003 PONTIAC GRAND PRIX. THE CONTACT STATED THAT THE ABS AND TRAC WARNING LAMPS ILLUMINATED. THE VEHICLE WAS TAKEN TO A LOCAL MECHANIC WHO WAS UNABLE TO DIAGNOSE THE FAILURE BUT PROCEEDED TO REPLACE THE BRAKES. THE REMEDY FAILED TO CORRECT THE FAILURE. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 100,000 AND THE CURRENT MILEAGE WAS 110,000.
TL*THE CONTACT OWNS A 2003 PONTIAC GRAND PRIX. THE CONTACT STATED THAT THE FRONT DRIVER'S SIDE ROTOR CONTAINED A RUST LINE. PRIOR TO THIS DISCOVERY, THE OUTER SURFACE OF THE ROTOR WAS THINNER AS IF IT WAS SHAVED DOWN. THERE WERE NO PRIOR FAILURES WITH THE ROTORS ON THE VEHICLE. THE CONTACT STATED THAT THE FRONT PASSENGER SIDE ROTORS HAVE FOUR BLACK CIRCULAR LINES PROTRUDING FROM THE MACHINE SURFACE. ALL OF THE ROTORS ON THE VEHICLE ARE FAILING. THE DEALER INSPECTED THE VEHICLE AND STATED THAT THE WARRANTY WAS EXCEEDED; THEREFORE, THE REPAIRS WILL BE MADE AT THE CONTACT'S EXPENSE. THE FAILURE MILEAGE WAS 17,000 AND CURRENT MILEAGE WAS 21,000.
ABS & TCS LIGHTS ON & OFF, STAYS ON MOST OF THE TIME. SERIOUS SHAKING OF FRONT END. WHEN BRAKING FEELS LIKE PEDAL KICKS BACK. REPLACED SEVERAL PARTS 1 YR AGO WAS BETTER FOR A LITTLE WHILE, NOW IS WORSE. CHANGE FRONT AXLE TO A GM AXLE. I HAVE ALL REPAIR PAPERS, CAR WAS IN SHOP APPROXIMATELY 7 TIMES. SHIFTER GETS STUCK IN PARK. *TR
ABS BRAKE AND TRAC LIGHT IN A 2003 PONTIAC GRAND PRIX STAYED ON. WE TOOK THE VEHICLE TO A PONTIAC DEALER AND HE STATED THAT IT WOULD COST $925.00 TO REPLACE THE COMPUTER SYSTEM. IT ALSO STATED THAT HE WOULD CALL GM HEADQUARTERS AND SEE IF WE COULD GET SOME HELP FROM THEM. APPARENTLY HE RECEIVED WORD FROM HEADQUARTERS THAT IF WE HAD A 50,000 MILE CHECK-UP AT HIS DEALERSHIP AND PAY $425.00 THEN HE GM WOULDN'T CHARGE US TO CORRECT THE ABS AND TRAC LIGHT PROBLEM. OF COURSE WE OPTED FOR THIS BECAUSE IT SAVED US MONEY. BUT I WONDER IF THIS WAS A SCAM AND GM WOULDN'T HAVE CHARGED US ANYTHING TO FIX THE ABS AND TRAC LIGHT SYSTEM. *NM
WARPED BRAKE ROTORS ON A NEW 2003 PONTIAC GRAND PRIX WITH ONLY 500 MILES ON IT. DEALER RESURFACED ALL 4 ROTORS INSTEAD OF REPLACING THEM WITH NEW ONES AUTO HAS LOST 35% OF ITS BRAKING POWER DUE TO ROTORS BEING CUT DOWN, CAR IS HARD TO STOP AND GM WILL NOT REPLACE THEM UNDER WARRANTY. *JB
DURING WET WEATHER THE BRAKES ON A 2003 PONTIAC GRAND PRIX REFUSED TO ENGAGE. THEY MADE HIGH PITCHED SQUEALING NOISES AND THE WHEELS LOCKED UP. CONTROL OVER THE STEERING WHEEL WAS NONEXISTENT. *NLM
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 25, 2026