Which parts fail
Components named in complaints (battery, alternator, wiring, ignition, instrument cluster, infotainment).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2007 Pontiac Grand Prix owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2007 Pontiac Grand Prix. The contact stated while driving approximately 35 MPH, there was a sudden loss of power steering functionality. The contact coasted to a stop and restarted the vehicle with the ignition key. The contact stated that after restarting the vehicle, the vehicle regained power steering functionality. There were no warning lights illuminated. The contact stated that the failure occurred at various speeds. The contact referenced NHTSA Campaign Number: 14V400000 (Electrical System); however, the VIN was not included. The vehicle was taken to a certified mechanic to be diagnosed. The vehicle had not been repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 42,000.
On March 27th, 2023, the car was parked and off for only approximately 5 minutes when the engine caught fire. The engine and vehicle is a complete loss. A claim has been filed with Farm Bureau insurance. There were no engine warning lights, smells, or smoke during or after driving, until the 5 minutes passed when the car was turned off. I did not locate any engine recalls due to fire for a 2007 Grand Prix. I noticed earlier models recalled due to potential fire.
Reference recall 14V755 nov 25, 2014, I experienced this problem in February 2014 while driving home at night on a back road with little traffic. I was going 45 MPH and suddenly pitch black. I thought quickly thought to hit my high beams. After spending money, replaced the relay and the following July it completely melted down, burning up my fuse box and several wires in the harness while parked in my driveway without keys in it. I happened to walk out and smelled it burning. I was able to remove the positive battery terminal. Clearly it was the (hdm) headlight relay stated in this recall. (photo attached).I've spent about $1500.00 in repairs. There are many blogs with the same problem and burned up a lot worse than mine. It seems to be a regular problem ending with fires in the fuse box.
The ignition switch failed on 12/24/2015 while I was driving on the east bound I-80 in california. I was not able to use the brakes or steering and rear ended the truck in front of me at about 40 miles per hour. The air bags did not deploy and I was bale to start the car and drive off the highway. Surprisingly I had the ignition switch recall for my keys mailed to me in August of 2015 and had the Cadillac dealer in reno nv modify my key and key ring on 10/31/2015. But I don't think the modification was ever performed since the ignition switch failed two months later....updated 02/02/16.....updated 05-10-16..updated 07/13/16 updated 09/19/2017
The car drove fine during the day without any problems. The day was a warm sunny day. I parked the car at church and went inside. 45 min. - 1 hour after parking the care I was asked to go outside. When I got outside I was told my car was smoking with the lights flashing and wipers running. Upon opening the hood I found the fuse box was completely melted through with the wireharness melted through where it plugs into the fuse box. The wireharness across the engine was also melted across the top of the engine.
Car started on fire 10-15 minutes after being parked in a public parking lot. Fire company had to be dispatched. No injuries or other property damage.....updated 04/08/15 updated 10/4/2017
Over the past 3 years at random occasions the low beams would just turn off in my car while driving. Luckily, the high beams have always worked so I could continue to drive. I researched how to fix the issue, and I ended up replacing the relay to the low beams twice since oct. 2011. Replacing the relay always seemed to correct the issue. I was always under the impression that it was just a faulty relay. Last night, my wife returned home from dinner and the headlights would not turn off. She called me to ask what she should do. I advised her to either disconnect the battery or remove the relay that has been a problem in the past until I could come home and take a look at it. As she opened the hood she noticed a burning smell. It was dark so she went to grab a flashlight, and upon returning the relay panel was now on fire. …
I have same problem as others. Have been able to start car sometimes by putting it in neutral. Several years ago I left the car with our son to see if he could figure out the problem because my wife quit driving the car after being stranded a few times. When using blinkers the high beam would come on. It has a roaring sound like a wheel bearing going out.the key fob doesn't work. I've been told the BCM body control module could be causing problems. Had estimate of $500 to replace and program new BCM.. We have towed car home after going to store. I used to drive otr so we got a second vehicle to drive. After reading other posts on this car 4/4/2021 I don't think I want to put more money into it. Especially when I've read GM techs can't fix the problems.. Once the vacuum line to brake booster came off when my wife was going down hill. I put the line back on, it hasn't done that again. …
When I start my car, it will stall out, not turn over or it will idle for a few seconds, then immediately shut off. I mean shut the whole car down so nothing electrical can work at which point my key will be stuck in the ignition and I cannot get it out. I am able to restart the car normally, however the steering wheel vibrates along with the body of my car while in motion and while parked. While making a left turn through a four way intersection, I lost control of my power steering and the wheel was stuck at first and then swung all the way back which spun my car around. This car has had 1 owner before me and I have kept up with all of my oil changes and tune ups. In September of 2018, I had a similar issue with the vibrating and was told that a cylinder was misfiring and that I needed a tune up. I spent $587 on these repairs. My vehicle was at 98,890 miles. …
Beginning approximately the end of March, while driving at night, both of my low beam headlights have gone out at the same time. They came right back on at that time so I thought I hit a switch. Sometime in May it happened again, but the lights would not go back on so I used my hi beams. The low beams worked fine in the morning. This has happened about 3 more times since then and is becoming more frequent. Last night on July 23, it happened again on a dark, curvy road and I almost ran off the road. This morning, they work fine again. I called the dealer and they said there was no recall on this. I am surprised as this is a serious safety issue. I need to get it repaired, but since it is an intermittent problem, I suspect the dealer will not be able to find the root cause or fix the problem.
Related recalls
Electrical system › Ignition
This defect can affect the safe operation of the airbag system. Until this recall is performed, customers should remove all items from their key rings, leaving only the ignition key. The key fob (if applicable), should also be removed from the key ring.
Remedy: GM will notify owners, and dealers will install two key rings and an insert in the key slot or a cover over the key head on all ignition keys, free of charge. The recall began on September 9, 2014.
Electrical complaints in other Grand Prix years
Frequently asked questions
How common are electrical problems on the 2007 Pontiac Grand Prix?
NHTSA has 68 complaints about the electrical system of the 2007 Pontiac Grand Prix, 31% of the model year's 220 complaints. The component named most often is horn (2 mentions).
Is there a recall for 2007 Pontiac Grand Prix electrical problems?
Yes — NHTSA recall 14V-400 (ignition, Jul 3, 2014). Recall repairs are free at authorized dealers.
At what mileage do 2007 Pontiac Grand Prix electrical problems start?
Half of the complaints with a recorded mileage happened before about 109,000 miles, and 4% before 25,000 miles.
Is it dangerous?
Owners linked 1 crash, 16 fires and 1 injury to electrical system problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.