Grand Prix (2003)
Engine Reliability Ratings
LG8
3.1L 6-cylView details
Complaint Breakdown
Known Issues
Pontiac Grand Prix Unidentified Engine
View details
Complaint Breakdown
Known Issues
L36
3.8L 6-cylView details
Complaint Breakdown
Known Issues
Show 2 additional engine variants with limited data
LA1
3.4L 6-cylView details
Complaint Breakdown
Known Issues
3.4-V6-Gas
3.4L 6-cylView details
Complaint Breakdown
Known Issues
Vehicle-Level Issues
These issues affect the Pontiac Grand Prix regardless of engine variant.
Recalls (7)
General Motors LLC (GM) is recalling certain model year 1998-1999 Chevrolet Lumina and Oldsmobile Intrigue, 1997-2004 Buick Regal and Pontiac Grand Prix, 2000-2004 Chevrolet Impala, and 1998-2004 Chevrolet Monte Carlo vehicles. The affected vehicles were previously repaired under recalls 08V-118, 09V-116, and 15V-201 to address the possibility that engine oil may drip onto the hot exhaust manifold.
DORMAN IS RECALLING 979 STEERING KNUCKLES, DORMAN P/NOS. 697-902 AND 697-903, SOLD UNDER DORMAN'S "OE SOLUTIONS<SUP>TM</SUP>" BRAND NAME, AND NAPA P/NOS. 7-8502 AND 7-8503 WHICH WERE SOLD FOR REPLACEMENT USE ON THE VARIOUS VEHICLES LISTED ABOVE. A POTENTIAL MATERIAL OR DESIGN DEFECT COULD RESULT IN THE STEERING KNUCKLE BREAKING IN THE HUB AREA.
DOPE, INC. IS RECALLING 42,540 COMBINATION CORNER AND BUMPER LAMP ASSEMBLIES OF VARIOUS PART NUMBERS SOLD FOR USE AS AFTERMARKET EQUIPMENT FOR VARIOUS PASSENGER VEHICLES. THESE HEADLAMPS FAIL TO CONFORM TO THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, "LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT." THESE LAMPS DO NOT CONTAIN THE REQUIRED AMBER SIDE REFLECTORS.
GENERAL MOTORS IS RECALLING 1,497,516 MY 1997-2003 BUICK REGAL, MY 1998-2003 CHEVROLET LUMINA, MONTE CARLO AND IMPALA, MY 1998-1999 OLDSMOBILE INTRIGUE, MY 1997-2003 PONTIAC GRAND PRIX VEHICLES EQUIPPED WITH A 3.8L V6 NATURALLY ASPIRATED ENGINE. SOME OF THESE VEHICLES HAVE A CONDITION IN WHICH DROPS OF ENGINE OIL MAY BE DEPOSITED ON THE EXHAUST MANIFOLD THROUGH HARD BRAKING.
SABERSPORT IS RECALLING 16,270 COMBINATION CORNER AND BUMPER LAMP ASSEMBLIES OF VARIOUS PART NUMBERS SOLD FOR USE AS AFTERMARKET EQUIPMENT FOR VARIOUS PASSENGER VEHICLES. THESE HEADLAMPS FAIL TO CONFORM TO THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, "LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT." THESE LAMPS DO NOT CONTAIN THE REQUIRED AMBER SIDE REFLECTORS.
GM IS RECALLING 207,542 MY 1997-2003 BUICK REGAL AND PONTIAC GRAND PRIX VEHICLES EQUIPPED WITH A 3.8L SUPERCHARGED V-6 ENGINE. THESE VEHICLES HAVE HIGHER FRONT ROCKER COVER GASKET TEMPERATURES, CREATING THE POTENTIAL FOR EARLIER DEGRADATION OF THE FRONT ROCKER COVER GASKET AND EVENTUAL OIL SEEPAGE.
CERTAIN DELPHI FUEL PRESSURE REGULATORS, P/NOS. FP10020-11B1, FP10026-11B1, AND FP10027-11B1, SOLD AFTER JANUARY 9, 2007, AS AFTERMARKET EQUIPMENT FOR VARIOUS PASSENGER VEHICLES LISTED ABOVE. THE UNIVERSAL PRESSURE REGULATORS (UPR) WERE PRODUCED WITHOUT AN O'RING AND RETAINER.
All Generations
Alternatives in Full-Size Sedan
Frequently Asked Questions
What are the most common 2003-2003 Pontiac Grand Prix problems?
The 2003-2003 Pontiac Grand Prix has accumulated 118 NHTSA complaints. The most frequently reported problem areas are Engine, Electrical System, Cooling System. As with any used vehicle, an inspection before buying and a vehicle history report are recommended.
Which Pontiac Grand Prix engine is most reliable?
The 2003-2003 Pontiac Grand Prix was offered with 5 engine options. Based on NHTSA complaint data, the 3.1L 6-cyl has the lowest complaint density and is considered the most reliable choice for buyers.
Is the 2003-2003 Pontiac Grand Prix a good used car?
The 2003-2003 Pontiac Grand Prix can be a sound used car depending on trim, mileage, and maintenance history. With 118 total NHTSA complaints on record, prospective buyers should review the known problem areas and check for open recalls before buying.
How many NHTSA complaints does the 2003-2003 Pontiac Grand Prix have?
The 2003-2003 Pontiac Grand Prix has 118 complaints filed with NHTSA as of our latest data pull. Complaint counts reflect owner-reported issues and do not necessarily indicate defects or safety risks on their own.
What recalls affect the 2003-2003 Pontiac Grand Prix?
There are 7 NHTSA recalls affecting some 2003-2003 Pontiac Grand Prix vehicles. Recall status varies by VIN — check the NHTSA recall database at recalls.nhtsa.dot.gov with your specific VIN to confirm which campaigns apply.
What should I check before buying a used Pontiac Grand Prix?
Before buying a used Pontiac Grand Prix, verify all open recalls are completed via the NHTSA VIN lookup tool. Pay particular attention to Engine, Electrical System, Cooling System, which are the most commonly reported problem areas. Request maintenance records, have an independent mechanic inspect the vehicle, and run a vehicle history report to check for prior accidents or title issues.
Does the Grand Prix have NHTSA crash test ratings?
NHTSA has not published crash test ratings for the 2003 Pontiac Grand Prix. Not all vehicles are tested each year. For the latest NHTSA safety information, visit nhtsa.gov/ratings.
Data from NHTSA federal complaints database. 118 complaints analyzed. Data confidence: high. Last updated: 2026-05-23.