2003 Pontiac Grand Prix Vehicle speed control Problems
- Complaints
- 3about this part
- Share
- 3%of 106 total for the year
- Median mileage
- 136,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the vehicle speed control of the 2003 Pontiac Grand Prix, 3% of the 106 complaints for this model year. Where a mileage was given, the median is 136,000 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Three seperate incidents (icy roads) when my 2003 Grand Prix gtp accelerated on it's own(11,000km). Dealer not able to find the problem. Two of the three were near misses of head on collisions in school zones. They said there was no problem because the computer hadn't coded anything. They put the data recorder into car. I caught one acceleration after winter was over. Then the dealer was a little nicer and didn't treat me like some dumb woman who didn't know how to drive. (maybe somethings wrong with the computer!!) any way they changed the throttle position sensor. …”
NHTSA complaint #10121106, filed 2005-05, 9,500 miles“The contact owns a 2003 Pontiac Grand Prix. While driving over 55 MPH, the accelerator pedal would erroneously depress, causing the speed to increase. The contact stated that the vehicle did not have a cruse control option. The contact also indicated that the engine hesitated when idling. The cause of the failures was not diagnosed. The vehicle was not repaired. The manufacturer was not notified. The contact notified carmart in radcliffe, ky of the failure. The failure mileage was 136,000.”
NHTSA complaint #11022999, filed 2017-09, 136,000 miles“The contact owns a 2003 Pontiac Grand Prix. While driving approximately 25 MPH, the accelerator pedal was depressed and became stuck. After numerous attempts, the pedal released and the vehicle resumed normal operation. The failure recurred while driving various speeds in 65 degree temperatures or greater. The manufacturer was notified of the failure. The vehicle was taken to the dealer, but not diagnosed. The manufacturer issued a recall for certain model vehicles under NHTSA campaign number: 04v528000 (vehicle speed control); however, the recall expired. The vehicle was not repaired. …”
NHTSA complaint #10846160, filed 2016-03, 162,000 milesVehicle speed control: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2008 | 9 | 6% |
| 2007 | 7 | 3% |
| 2006 | 9 | 4% |
| 2005 | 5 | 3% |
| 2004 | 18 | 4% |
| 2003 | 3 | 3% |
| 2002 | 7 | 2% |
| 2001 | 9 | 3% |
| 2000 | 8 | 2% |
| 1999 | 8 | 2% |
| 1998 | 11 | 2% |
| 1997 | 16 | 2% |
| 1996 | 5 | 6% |
| 1995 | 13 | 8% |
| 1994 | 18 | 8% |
| 1993 | 1 | 1% |
| 1992 | 5 | 4% |
| 1991 | 5 | 3% |
| 1990 | 3 | 2% |
| 1989 | 2 | 1% |
Other parts of the 2003 Pontiac Grand Prix
31 complaintsElectrical system
20 complaintsEngine cooling
16 complaintsBrakes
9 complaintsBody and structure
9 complaintsExterior lighting
8 complaintsFuel system
5 complaintsSeats
5 complaintsTires
4 complaintsTransmission and drivetrain
4 complaintsVisibility (wipers, defrost, mirrors)
4 complaintsEquipment
3 complaints
← All problems reported for the 2003 Pontiac Grand Prix
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Nov 1, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology