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Engine coolingPart report

2003 Pontiac Grand Prix Engine cooling Problems

Complaints
16about this part
Share
15%of 106 total for the year
Median mileage
75,000miles
Trend
StableComplaints filed in the last 3 full calendar years are within 25% of the 3 years before.

NHTSA recorded 16 complaints about the engine cooling of the 2003 Pontiac Grand Prix, 15% of the 106 complaints for this model year. Where a mileage was given, the median is 75,000 miles. 6 a fire, according to the filers. 3 recall campaigns on record are filed under a similar system.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“I purchased a 2003 Pontiac Grand Prix on 9/19/03 with 12429 miles on the 3100 sfi 6 cyl engine, and now at 65,550 miles, the manifold gasket is leaking and filling the radiator with oil. The warranty is good up to 75,000, and I plan to get the repairs made by the dealer under my contract. However, this should not have happened to such a new automobile, and I understand others have experienced the same problem with this engine at 35,000 miles.”

NHTSA complaint #10155613, filed 2006-04, 65,000 miles

“On 3/15/10 the hood of my car was smoking. I contact gmc regarding recall on my Pontiac Grand Prix 2003. I was advised to take car in to dealer to get recall fixed. They claim they fixed the recall problem. I left dealer ship and the hood of my car caught on fire after leaving 5 min up the street to a service center. I was advised to tow my car back to the dealer. They are claiming the recall was fixed. However, the very same thing that the recall was for happened. I am in fear of driving this car again unless I know the problem was corrected. …”

NHTSA complaint #10323949, filed 2010-04, 84,917 miles

“On 3/15/10 the hood of my car was smoking. I contact gmc regarding recall on my Pontiac Grand Prix 2003. I was advised to take car in to dealer to get recall fixed. They claim they fixed the recall problem. I left dealer ship and the hood of my car caught on fire after leaving 5 min up the street to a service center. I was advised to tow my car back to the dealer. They are claiming the recall was fixed. However, the very same thing that the recall was for happened. I am in fear of driving this car again unless I know the problem was corrected. …”

NHTSA complaint #10325576, filed 2010-04, 84,917 miles

“On march 3, 2009; my Pontiac Grand Prix gtp caught on fire within 10 minutes of me parking the car in front of the house. I went into the house and within minutes my neighbors were banging on the door saying my car is on fire. I already filed a complaint with GM as I was informed of a factory recall by browsing the internet. I never received a recall notice and GM says because I purchased the vehicle used, maybe GM doesn't have my home address . Gm says to leave the vehicle in it's post-fire condition until they investigate. How long will this take? …”

NHTSA complaint #10261099, filed 2009-03, 75,000 miles

“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.”

NHTSA complaint #10178755, filed 2007-01, 33,345 miles

Related recalls

Related service bulletins

Engine cooling: other model years

YearComplaintsShare of year
200854%
200742%
200663%
200564%
2004419%
20031615%
20026219%
200110233%
200015133%
199915237%
19989018%
199713617%
19961316%
1995117%
19942210%
1993108%
19921412%
19911911%
1990169%
19891410%
198845%

Other parts of the 2003 Pontiac Grand Prix

Engine
31 complaints
Electrical system
20 complaints
Brakes
9 complaints
Body and structure
9 complaints
Exterior lighting
8 complaints
Fuel system
5 complaints
Seats
5 complaints
Tires
4 complaints
Transmission and drivetrain
4 complaints
Visibility (wipers, defrost, mirrors)
4 complaints
Equipment
3 complaints
Suspension
3 complaints

← All problems reported for the 2003 Pontiac Grand Prix

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 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