2006 Pontiac Grand Prix: complete transmission failure

Filed Jan 23, 2017 · Transmission · 110,250 miles · CA

I've had to replace the transmission at 67k miles, and it went out on me again at 110k miles. I replaced the transmission at not only a gm certified dealership, but a pontaic dealership (john hine pontaic) in san diego. The transmission was a gm certified refurbish from canada. No recalls from gm, and no reimbursement policy. This is an issue.

Filed Nov 8, 2014 · Electrical, Lights · IA

Soon after purchase, transmission slips gears coming out of a stop. August 2013, transmission dropped out, driving 30mph. Car was not drivable; no gears. Transmission was replaced. Now one year later, slips gears at 40mph. Headlights went out while driving in the dark. Use of turn signals causes high beams to activate. The cabin fan (A/C and heat) never shuts off. Heat works intermittently. Car seems to shake at times. Feels like a flat tire but when checked, tires are fine. Car rolls when in park, even on flat surface. Car rolls back when in drive, even on slight inclines. Never certain of brakes; at times, works as normal, other times, pedal must be pushed close to the floor to activate brakes.

Filed Jun 4, 2014 · Transmission · 55,045 miles · CO

I am adding my transmission failure to this data base. This is a one owner car and driven with care. The transmission failed at appromimately 5 years and at 55,045 miles . This cost $4,343 to replace with a srta transmission so I could get home from vacation. Why is nothing being done about the numerous transmission failure complaints? My car now has 80k miles and I feel as if I am close to losing the transmission again. I have the invoice to back up this claim.

Filed May 24, 2014 · Transmission · 80,235 miles · CA

I been having problems with the transmission, it slips and gets to hot, in a normal trip to work o the mall etc, if I drive for 30- 40 mints, it reach up to 240 degrees, I think is a car defect, when I bought the car the transmission died and the dealer replace the transmission, but even though it was a new trans. It also run to hot, I called gmc and they denied any transmission problems.

Filed Feb 25, 2014 · Transmission · NJ

I have a 2006 pontiac gxp and I am writing in to complain about a transmission failure. I have been reading all over the internet and there are a ton of failures. The car only has 83k and was never modified or changed. It is going to cost over 3300 to fix this issue.

Filed Jun 21, 2013 · Transmission · 79,000 miles · WI

Transmission failure. Torque converter clutch failure causing the transmission to fail.

Filed Jan 14, 2013 · Transmission · 86,859 miles · VA

I bought this automobile brand new ($32,000) from haley pontiac in june of 2006. While driving with my grandchildren in the car the transmission failed completely in traffic. The car only has 86,859 mile on it. I contacted both gm and gmc and they deny any wrong doing or even partial reimbursement. After doing research on the internet I have found over 2000 people who had the same issue. Gmc knew when they made this vehicle that the transmission was not compatible with the cars v8 5.3 litre engine but sold it anyway. Also since they knew the issues that would arise this make and model came without the 100k powertrain warranty (which they had before and resumed in 2007). I'm really curious with all the complaints why hasn't this car been recalled and repaired prior to consumers having to pay over $3000 for new transmissions (to gmc service departments). What will it take for someone to hold them accountable and treat consumers fairly? Does it actually take a death from the faulty mechanical issue? Or perhaps a class action lawsuit? I'm not certain but I truly believe that my complaint as well as all the others out there (I'm certain some have already been sent to you) should be grounds enough for an investigation as well as a recall. I plan on pursing this matter by writing to both the state attorney offices as well as the president of gm. Thank you for taking the time to read my complaint.

Filed Dec 20, 2012 · Transmission · 111,542 miles · IN

4t65e-hd automatic transmission failure. Car does not engage any gear to include reverse. According to general motors, this transmission is rated to handle 280 pound feet of torque. However, it was mounted in a vehicle (2006 grand prix gxp) which by general motors' own admission makes 323 pound feet of torque. Therefore, by general motors' own admission, the transmission they selected for this vehicle was never designed to handle the motor to which of was mated. Max torque for this vehicle occurs at just 3800 RPM. It would seem then that an individual would not need to be engaging in hard or abusive driving to exceed the design specification of this transmission.

Filed Oct 1, 2012 · Transmission · TN

We have a 2006 pontiac grand prix gxp and the transmission started slipping and shuddering. My wife was driving the car to a shop and it just quit and would not go forward or reverse. We had to have the transmission replaced. $3,000 gone. I contacted pontiac customer care and they did not help us in any way. I have read story upon story about transmission failures on this particular vehicle. People have been left stranded and without a vehicle while repairs were done to correct gm's problem that they will not fix! Is there anything anyone can do to at least help reimburse those who have been burnt by gm's lemons? Any help would be greatly appreciated.

Filed Sep 27, 2012 · Transmission · 55,000 miles · GA

Got my gxp in 2-12-10 with 41000 miles on it. Transmission went out in 56000 miles. Cost 2500 to fix now with 89000 miles the transmission is slipping again. I loved gm cars and if they don't recall this soon. I will be going to dodge hemi power.

Filed Sep 24, 2012 · Transmission · 90,325 miles · MA

Transmission failed on march of 2012 bad torque converter the whole transmission had to be rebuilt and just failed again on sept 22/2012 last repair in march cost was $2800 this transmission has less then 6000 miles since being rebuilt and failed again pontiac 2006 grand prix gxp 5.3 engine.

Filed Sep 24, 2012 · Transmission · 110,000 miles · NE

2006 pontiac grand prix gxp. Total transmission failure at 110k. This is a family vehicle which was purchased new. All service maintained, never even close to being abused and this transmission should be well within its life. As I have read, these transmissions are basically(supposedly) a beefed up version of the transmission used in the 3.8l models. It is same as used in the impala ss, where many many failures have occurred. Completely failed at 110k. Took into dealership on a monday, they ran diagnostics, test drive it twice could not find any issue. Vehicle towed in 24 hours later, with a complete trans. Failure. It started all of a sudden, would not shift properly, hard shifts, then would skip gears, then would not go into reverse, then would not engage at all. This is a very serious issue that deserves a recall. Only real option is to replace with a factory rebuilt transmission. Obviously gm will not do a voluntary recall, they are making too much on the sale of rebuilt transmissions.