2008 Pontiac Grand Prix transmission problems

Filed Jun 13, 2024 · Transmission · IL

The transmission shifting cable has clips that keep it held in place for you to be able to put your car into drive or reverse and park ect. Is broke and at least once a month or more my car won't go into gear the shifter just slides smoothly but don't catch a gear. So far it hasn't happened on the road just when it's parked. But still feels like it's not in park. I worry that it won't be in park and back up or roll forward on me while I'm trying to get into or out of my car. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jun 19, 2019 · Transmission · 102,000 miles · TN

Transmission fluid temp is overheating

Filed Aug 28, 2015 · Acceleration, Engine · 133,700 miles · MI

My grand prix recently started to display a message stating reduced engine power. It has been happening randomly for the past week. It only happens as I am driving the car. The car slows dramatically, and does not accelerate at all. As I was driving yesterday, I was merging into traffic where the speed limit is 45 MPH, I had more than enough room to merge into traffic, the reduced engine power message displayed and the car would not accelerate. The traffic quickly caught up to me and I was almost hit due to the car not accelerating. I am curious after looking into this matter and finding so many complaints about the same issue, how many complaints need to be filed, or how many deaths need to occur before something is done? I am now scared to drive my own car.

Filed Mar 19, 2015 · Transmission · 41,000 miles · MI

Every time I accelerate giving my car gas it always feel like the transmission is locking up then it will jerk out of the lock and start picking up speed and I have talk to other peoples that have the same car ,same year or 2007 said the same thing when you stop and accelerate it does a lock like it's chattering to take off then it just jerk then pick up speed .I took it to the dealership they said it's something in the transmission I had this issue for 4 yr's now .

Filed Jan 8, 2015 · Transmission · 143,000 miles · TN

I was pulling into the garage and I shifted into park, my car continued rolling as if I was still in drive. I attempted to switch gears and the gear shift had no traction. It was sliding back and forth b/w the gears as my car continued moving forward. I then slid it back in park and shut the engine off to prevent the car from moving. I then could not start my car because it wasn't technically in park. The car had to be towed to the dealership and the gear shift cable had worn away/broken. Gm has recalled this issue in other pontiac and other vehicles for the same model year as my vehicle. Definitely unsure why the same issue happening in the grand prix has yet to be addressed but this is a repair that costs over $400.00. The gm csr I spoke with totally ignored my concerns regarding the gear shift cable and just wanted to speak w/ me regarding the ignition switch recall.

Filed Oct 17, 2014 · Electrical, Transmission · FL

Tl* the contact owns a 2008 pontiac grand prix. While traveling approximately 45 MPH, the vehicle jerked violently and decelerated. Also, upon turning the key in the ignition, the vehicle hesitated and stalled multiple times. The vehicle was included in the federal safety agency campaign number: 14v400000 (electrical system). The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was unavailable.

Filed Jul 29, 2014 · Transmission · 75,000 miles · GA

Loud clunk when starting off. Vehicle did not shift into gears as normal. Transmission on this vehicle has been erratic for at least a year.

Filed Jul 18, 2014 · Transmission · 42,089 miles · IL

From the moment I bought the car I have been having major problems bought certified used power train warranty also bought extended warranty thru gmc .the problem has been ongoing every time took to dealership they would find other problems but what I brought the car in for which is a 2008 pontiac grand prix v8 .after I come to a complete stop the car jerks when I take off the dealer ship claims they could not find a problem I have over 10 pages of records from my visit to 2 different dealerships now car is out of all warranties I still have same problem its so bad I am scared to drive the car long distant almost had a accident due to this problem the dealership refused to look at the trans at every visit saying no codes and they could not locate the problem.

Filed Dec 23, 2013 · Transmission · 95,000 miles · IL

When driving the 2008 grand prix gxp (5.3 with a 4sp automatic overdrive) at low speed the car started shuttering and slipping in gear. Made it home slowly and pulled over and checked to ensure transmission fluid full. Call dealer to file warranty claim and tried to drive to dealer and car went 1/4 mile at 10-15 MPH and car transmission went completely out. No gears in reverse, drive or manual mode. Car had to be towed to dealer. This is a daily commuter car to work and home and I am working this week and has left me stranded during the holidays. No rentals available due to holidays. Complete transmission failure from a 2008 model with less than 100,000 and I put 12,000 on it since april when I bought it with 82,xxx.

Filed Apr 9, 2013 · Engine, Transmission · 113,000 miles · MO

Back in december 2012 my car have not been driving correctly. I took it to the behlmann gmc dealership and they stated everything was fine. In jan I took my car in for an oil change and informed them that my car had still not been driving correctly on that same visit I had them do a diagnostic and behlmann stated that the machine didn't say anything transmission wise that was wrong. Now that it is april my car is feeling like its getting worsier and worsier and I took it to autozone and also another car shop and had them put the car on the machine. Both places are saying the error is saying my transmission is slipping and my transmission fluid is burning. I am very disappointed because while my car was under warranty which expired not to long ago I was getting the run around saying that the transmission was fine when all along it was indeed damaging.