2007 Pontiac Grand Prix transmission problems

Filed Apr 4, 2021 · Electrical, Engine · 170,000 miles · AR

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. We have not driven the car out of town for fear of it breaking down. And shops not being able to tell us what is wrong with it.. I tied a cable on trunk release so I can open trunk. . We did love the car when it was running. Has 193,000k at this time. Has stalled/quit on city streets. And we quit driving it on highway.

Filed Nov 21, 2019 · Brakes, Electrical · 52,000 miles · FL

Tl* the contact owns a 2007 pontiac grand prix. While approaching an intersection, the vehicle seized without warning. The contact managed to move the vehicle to the shoulder of the road with the help of a bystander. The contact believes the key fell out of the ignition. The power steering and brakes went out, place the gear into park. The vehicle was taken to an independent mechanic who was unable to duplicate the failure. The vehicle was not repaired. The dealer and manufacturer were not made aware of the failure. The failure mileage was approximately 52,000. *bf

Filed Dec 12, 2015 · Engine, Steering · 170,000 miles · OK

Crank shafts position sensor causes the engine to shut off while driving down the road. Resulting in the loss of power steering, and power brakes. This occurs at all speeds from stop and go traffic at less than 5 MPH to highway speeds of 70 MPH +. This is a very dangerous issue. Adding the recall piece to the key did nothing to remedy the issue. This has been occurring for 2 years now.

Filed Nov 21, 2014 · Engine, Transmission · 80,000 miles · KS

When I would come to a stop and hit the gas to take off the car hesitate to go rpms going up but the car would act like it was not in gear. Then a jerk would occur and the car would take off making it scary to pull out into traffic. It took many times going to the dealer before they repaired it, it was linkage in the transmission, it was wore out. 5 years later it is doing the same thing.

Filed Oct 30, 2014 · Transmission · CA

Tl* the contact owns a 2007 pontiac grand prix. The contact stated that the vehicle failed to accelerate and excessive force was required on the accelerator pedal in order for the vehicle to respond. Also, the contact mentioned that the vehicle vibrated and jerked when the gears were shifted. The failure occurred several times. The vehicle was taken to a dealer. The technician diagnosed that the transmission needed to be flushed. The flush was performed but the failure persisted. The manufacturer was not notified of the issue. The approximate failure mileage was unknown.

Filed Jun 30, 2014 · Transmission · AL

I purchase vehicle in 02/19/2014 and had problems from water pump car will not go in reverse and it get stuck when you place it in drive it press on the gas pedal like its in park. When I'm sitting on a slight hill it goes in reverse and shuts completely off. The temperature gauge goes up and I haven't drove the car for a good 15 min the car has been in the repair 4 times since I've purchase it. I hear a rattle in the steering wheel. I've had a transmission install, water pump rear trailer arms.took vehicle to shop 4th time and they tell me nothing is wrong I purchase a warranty and I still have to pay out of pocket fees. I hear rattling in the steering wheel. I reach out to the recall website for pontiac and enter VIN number just to find out there is no recall. The gas tank when I screw the cap its not tightening securely but I also saw that was a recall on that as well. I feel like I purchase a piece of junk when I feel like I'm on the road my life is in danger.

Filed Jun 30, 2014 · Transmission · 92,000 miles · OK

Vehicle transmission would not shift gears properly, then shifted extremely hard into gear. This is a grand prix gxp model and as I have researched, this transmission fails at an excessive rate. It is supposedly a heavy duty model of the transaxles used in the v6 model, however it runs very hot ( factory external cooler should have been used) and wears out very early. It has failed to shift properly numerous times, causing an unsafe condition for the vehicle and driver.

Filed Mar 29, 2014 · Transmission · 147,581 miles · OK

On 12/12/13, car wouldn't accelerate properly in 1st gear when gas pedal was pushed and transmission shifted roughly through remaining gears. Transmission fluid temp was 220+ degrees. Took car to gm dealership, was told TCM needed to be replaced, along with transmission fluid flush and refill. Did as recommended. On 2/4/14, at a traffic light, attempted to accelerate when light turned green and car wouldn't move in any gear. Trans fluid temp was fine. No check engine light or other warnings. Called onstar, had it towed to the same gm dealership, and was told that transmission pan was filled with metal flakes. There were no metal flakes as of 12/12/13, and no issues between those dates. Bought a rebuilt transmission and picked up car 3/12/14. Filing my complaint due to the excessive number of complaints about this specific transmission.

Filed Mar 5, 2013 · Transmission · 59,000 miles · IN

Tl* the contact owns a 2007 pontiac grand prix. The contact stated that while driving approximately 65 MPH, the transmission began to slip and the vehicle exhibited an abnormal jerking motion without warning. The vehicle was taken to the dealer where the contact was advised that the repairs needed to correct the failure could not be determined. The manufacturer was made aware of the failure. The vehicle was not repaired. The approximate failure and current mileage was 59,000.

Filed Mar 5, 2013 · Transmission · 72,200 miles · CT

Another gxp transmission issue... There seems to be a very high number of issues w/the gxp transmissions considering how few they sell since it's the top of the line version w/the v8 engine. Seems like they tried to use the transmission from the lower models w/the v6 engines & it's not holding up to the engine power. When is there finally going to be a recall for the design issue/poor quality? I had the dealership service the transmission at ~50k miles as preventative maintenance & it was running fine at the time. I don't spend a lot of time at high speeds on the highway & don't drive it hard, but the transmission failed after ~72,200 miles. Early feb 2013, the transmission started slipping for a fraction of a second ~3rd to 4th. Brought it to the dealership, but the technician did not notice anything unusual during the test drive & said to bring it back if it got worse. On 2/26/13 I drove it back to the dealership because the transmission slipping was getting worse & it also started making a noise. The night I dropped it off, the service rep watched me put it in reverse & drive to move the car, but it wasn't making any noise or slipping at that time. I agreed to leave it overnight so they could see if it made noise when it was cold in the morning. The next day, he called me to say the transmission doesn't work at all anymore & needs to be replaced at a cost of $3,349. Fortunately it didn't fail as I was pulling out on the busy crossroads & take on my way to work or it could've been a serious problem.