Vehicle Data Hub

2003 Pontiac Grand Prix problems

NHTSA has received 137 complaints about the 2003 Pontiac Grand Prix, and 34% of them involve engine. Next are electrical system (15%) and brakes (7%).

At a glance

Complaints
137 filed with NHTSA
Most reported
Engine 34% of complaints
Crashes and fires
9 and 44
Injuries and deaths
15 and 0
Typical mileage
100,000 miles 99 complaints with mileage

Source: NHTSA owner complaints

Where the complaints are

Share of this model year's complaints by the part of the car involved. One complaint can name more than one part, so the shares can add up to more than 100%.

  • Engine 34%
  • Electrical system 15%
  • Brakes 7%
  • Body & structure 7%
  • Lighting 6%
  • Fuel system 4%
  • Seats 4%
  • Cruise control 3%
  • Tires 3%
  • Wipers, windshield & visibility 3%

When problems show up

Complaints by mileage, 2003 Pontiac Grand Prix Complaints by odometer reading in 20,000-mile steps. The median is about 100,000 miles. 0k to 20k miles: 21 complaints 20k to 40k miles: 1 complaints 40k to 60k miles: 5 complaints 60k to 80k miles: 10 complaints 80k to 100k miles: 11 complaints 100k to 120k miles: 10 complaints 120k to 140k miles: 20 complaints 140k to 160k miles: 3 complaints 160k to 180k miles: 7 complaints 180k to 200k miles: 7 complaints 200k+ miles: 4 complaints 040k80k120k160k200k miles Typical: 100,000 miles
Based on 99 complaints that include mileage. 27% were reported before 60,000 miles. The amber marker shows the median: half of these complaints happened before that mileage.
View the numbers
MileageComplaints
0k to 20k miles21
20k to 40k miles1
40k to 60k miles5
60k to 80k miles10
80k to 100k miles11
100k to 120k miles10
120k to 140k miles20
140k to 160k miles3
160k to 180k miles7
180k to 200k miles7
200k+ miles4

What the data shows

Of the 99 complaints that include odometer readings, half describe a problem before roughly 100,000 miles. For engine specifically, the median reported mileage is about 119,000 miles (37 complaints with mileage).

Safety-related details: 9 complaints mention a crash; 44 complaints mention a fire; 15 injuries reported. Its complaints are more severe on average than those of 98% of model years in our database.

Looking only at complaints filed within five years of the model year (so older and newer years are comparable), the 2003 ranks 19th most-complained-about out of 19 model years of the Pontiac Grand Prix with enough data (52 complaints in that window). It is also covered by 3 safety recall campaigns.

What owners wrote

A few complaints as filed, shortened and with personal details removed. The first ones are among the most serious reports for this model year; the rest are typical.

Tl* - the contact stated that while driving the 2003 pontiac grand prix on a sunny day at 35 MPH a deer ran out in front of the vehicle he swerved in order not to hit the deer and ran into a tree. The air bag deployed, the car caught on fire and was consumed by the fire. He had a hard time getting out the driver's side door, it would not open. He had to crawl out through the back window. The failure mileage was 87000 miles.

Reported at 87,000 miles, January 2007 CrashFireInjury

"sorry if I'm not using this complaint system correctly" lower intake manifold gaskets need replacement on 2003 pontiac grand prix with only 33.4k miles on it. Bought car new. $1100+ to have fixed. Seems to be a big problem all over america and with canadian lawsuit. Dealership did not offer to fix.

Reported at 33,345 miles, January 2007

I purchased a 2003 pontiac grand prix se with a v-6 and I get water coming in the passenger side every time it rains. Also the transmission shifts hard occasionally when going from first to second gear. I was told to fix the leak would be around $300 and the transmission problem.... I may as well buy another car for that price....

Reported at 135,000 miles, April 2010

Other model years of the Grand Prix

Best and worst years for the Pontiac Grand Prix