NHTSA Owner Complaint Log
This page lists owner-reported complaints filed with NHTSA for the 2003 Pontiac Grand Prix. Complaints are unverified consumer reports submitted to NHTSA and do not by themselves prove a defect or defect rate.
WHEN IT RAINS WATER COMES IN ON PASSENGER SIDE,THIS HAPPENED ON MY UNCLE'S 1999 GRAND PRIX
PROBLEMS WITH "SERVICE ENGINE SOON" LIGHT ILLUMINATED ON DASHBOARD. *MR THE VEHICLE WA TAKEN TO THE DEALER FOR REPAIRS AND TWO DAYS LATER THE VEHICLE HESITATED AND THERE WAS LOSS OF POWER. SINCE THIS PROBLEM SURFACED THE DEALER HAS REPLACED THE MAIN COMPUTER AND A SENSOR. THE CONSUMER INDICATED THAT NOW THE VEHICLE FEELS LIKE IT IS SLIPPING. *NM
IN FEB OF 2003 MY PONTIAC GRAND PRIX CAUGHT FIRE AFTER I PARKED FOR THE EVENING. SINCE THEN, INSURANCE REFUSED COVERAGE FOR "SUSPICIOUS IN NATURE. IN 2003 PONTIAC CLAIMED NO RESPONSIBILITY, GM'S 100,000 MILE WARRANTY WAS A REFUSED. AFTER COMPLAINING AGAIN IN 2006 PONTIAC CALLED AGAIN TO SAY THEY WERE NOT AT FAULT AND HAD NO RESPONSIBILITY. I ASKED THEM FOR CORRESPONDING VIN NUMBERS AND WAS REFUSED. I HAVE LOCATED OVER 15 ADDITIONAL GRAND PRIX ENGINE FIRES WHERE GM / PONTIAC IS CLAIMING NO RESPONSIBILITIES. ONCE ? TWICE ? 10 + ? I READ THAT NHTSA HAD BEGUN ANOTHER INVESTIGATION IN FEB 07 AND WOULD LIKE MORE INFORMATION ON THIS. I WOULD BE HAPPY TO FORWARD COPIES OF ANY OF MY MATERIALS INCLUDING 2 SEPARATE FIRE INVESTIGATIONS THAT CLAIM MY FIRE STARTED BY THE DRIVERS HEAD LAMP UNDER THE AIR FILTER ASSEMBLY, INCLUDING RECEIPTS THAT SHOW WHERE GM SERVICED MY FUEL ASSEMBLY 2 WEEKS PRIOR TO THE FIRE... *JB
WHILE PARKING /DRIVING HORN MALFUNCTIONED. DEALERSHIP WAS NOTIFIED, BUT DID NOT RESOLVE THE PROBLEM. *AK THE HORN BUTTON REQUIRES EXCESSIVE EFFORT FROM THE DRIVE TO ACTIVE. THE DRIVER ALSO HAS TO PUSH IN A SPECIFIC PLACE FOR THE HORN TO WORK. THE CONSUMER WAS INVOLVED IN AN ACCIDENT BECAUSE THE HORN WOULD NOT WORK. *NM
THE CONSUMER WAS CONCERNED WITH THE SAFETY OF THE REAR DOORS OF THE VEHICLE. THE REAR DOORS DO NOT HAVE CHILD SAFETY LOCKS. *NLM
Data synced from NHTSA on May 4, 2026