2007 Pontiac Grand Prix: complete transmission failure

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.

Filed Feb 18, 2013 · Transmission · 95,000 miles · AL

I was on my way to work when my car just stopped moving. I was barely able to get off of the road without being hit by the car behind me. I had it towed to the chevrolet dealership. The car was still under warranty so the transmission was replaced. However, less than 10,000 miles later the 'new' transmission is slipping badly. I can't afford the $2800 plus labor to have the transmission replaced again so I guess I will just have to hope that I don't get ran over when the transmission goes out again. After researching this car I have found that transmission failure is common. Why is this not considered a danger not only to the people in the car but to the other people on the road that the car could stall in front of?

Filed Apr 16, 2012 · Transmission · 96,000 miles · MD

2007 pontiac grand prix gxp transmission failure at 96,000 miles (and 6 months out of warranty). Stopped at traffic light when I pressed the accelerator to go and heard a "clunk" and had no forward gears in automatic. Did have tapshift gears and reverse, though forward gears slipped. Took it to a local dealer (we were out of town) and told the transmission had failed. Had to have the transmission rebuilt at a cost of $3600. Plus car rental and hotel to drive home and return to pick up the car when it was repaired. Second gm transmission failure I've experience in less than two years with the previous one on a chevrolet trailblazer.

Filed Mar 6, 2012 · Transmission · 45,000 miles · PA

I have a 2007 pontiac grand prix gxp w/5.3l v8. Currently has 45,000 miles just recently started having issues with the transmission. From a dead stop trans will slip, than slam into gear, also shutters between 1-2, and sometimes from 3-4. Car does currently have powertrain warranty that I purchased with car. So car will be going in for repair under warranty (I hope) after reading online in a gm owner forum found out about the current investigation with gm transmission failures would really like to see a recall come of this. Because seems that this is a very common issue.. It will leave you stranded without warning, and may break in the middle of traffic causing a dangerous situation to be in. It seems to be too much for a transmission that was designed to be mated to a v6 engine. Not to be mated to a 5.3l v8.

Filed Jan 7, 2012 · Transmission · 77,000 miles · MI

Automatic transmission failure. Transmission shudders, slips and slams into gear. Gxp model.

Filed Sep 2, 2011 · Transmission · 20,000 miles · NJ

Tl* the contact owns a 2007 pontiac grand prix. While stopped at a light, the vehicle would not accelerate. The failure recured intermittently. In addition, the speedometer would not read the accurate speed. The vehicle was towed to the dealer where the technician stated that the transmission would have to be replaced. The failure persisted after the repair. The transmission was replaced three different times but the failure persisted. The approximate failure mileage was 20,000.

Filed Jun 28, 2007 · Transmission · 500 miles · FL

Update on 10192218 and 10192426. 2007 grand prix gxp dealer attempted repair transmission. Per gms tech support, dealer pulled transmission, replaced final drive gears , and bearings. Problem not resolved. Dealer then replaced transmission, but with gm re-manufactured"part. Also, dealer stated they could not obtain a brand new transmission for any repair because the factory saved new transmissions for the production line vehicles. 15 days at dealer. And was told car ready for pick-up. Drove the car around the parking lot and noticed gear shift did not lock into place in any gear but manual. Reverse, didn't work, and transmission shifted itself into neutral going down an incline. Brought vehicle immediately back to dealer, who had to replace both front bridgestone tires due to out of round and irregular wear. Latest set of tires were also defective, ordered two new bridgestone's under warranty. Second set of replacement tires did not help. Dealer told me there was nothing wrong with the replacement transmission, despite drive line shuddering. Dealer stated operated as designed.

Filed Jun 8, 2007 · Tires, Transmission · 500 miles · FL

Follow-up on odi #'s: 10191952 and10192426 repair attempt three on automatic transmission. As of midnight tonight, this makes 15 consecutive days the vehicle has been at the dealer for repair of the transmission. Dealer called today, stating vehicle is repaired. They replaced the transmission with a "re-manufactured" transmission they ordered from gm. So, I've got a brand new 2007 grand prix gxp with 3,200 miles on the odometer, with a used transmission from gm. Dealer insisted vehicle had been taken for several test-drives today, and it is in "like new" condition. Upon taking the car for a test drive, myself, I noticed that the gearshift was loose, and did not lock into place, as it had before, and as it was designed to do. Any slight pressure or bump in the road caused this "new"(????) transmission to shift into neutral, without control input from driver. Basically, there were no detent stops for the gear indicator, and it freely moved between drive, neutral and reverse! Dealer stated they would once again attempt to repair. Dealer did not close-out the service ticket, so they are making this appear as one repair attempt, even though they have: 1. Ignored initial complaint, 2. Attempted to repair the original transmission, 3. Failing that, they ordered a used, re-manufactured transmission from gm, which has either been installed incorrectly, or is defective from the start. Even if the vehicle can be "repaired", it now has a used, dysfunctional and dangerous transmission, and the car is seriously de-valued. I am filing a complaint with gm, and thoroughly plan on a vigorous pursuit of my rights under the florida lemon law.

Filed May 29, 2007 · Transmission · 500 miles · FM

Purchased 2007 pontiac grand prix gxp new, approx 3 months ago. At 500 miles, loud metal-on-metal "clanking" noise began. Traced noise to transmission bell housing. Taken for service at 1,500 miles, requested service writer listen to the noise and take care of problem. Returned as "no problem found". Again, took vehicle to dealer for same noise, along with harsh and sudden shifts around 25-30mph. Dealer attempted to return vehicle, stating it was "normal, and covered by a tsb". I refused to accept the vehicle. Dealer gave me a very hard time about covering a loaner vehicle, even though this was 2nd time to dealer with same complaint, unresolved, with just over 3,200 miles on odometer. Dealer called gm. Mechanics now have to tear out the transmission to "attempt a diagnosis". Apparently, there may be a "clutch pack issue". Vehicle still in service after 4 days, no diagnosis yet. Request gm provide a new transmission and bell housing.