Bulletins
| Bulletin | Bulletin date | Replacement Bulletin | Item no. | Summary | Added |
|---|---|---|---|---|---|
| POWER TRAIN - AUTOMATIC TRANSMISSION | |||||
| 08-07-30-016 | 04/01/2008 | 080730016A | 10025421 | Diagnostic information on mh1, mn8, mt1, m15 transmission slips, will not shift or may overheat, ses/mil may be illuminated, dtcs p0218, p0894 set. *pe updated 8/12/08. *pe | 08/07/2008 |
| 080730002 | 03/01/2008 | 080730002A | 10025065 | Informational on 4t65-e mn7, m15 and m76 front wheel drive automatic transmission valve body reconditioning, dtcs p0741, p0742, p0757, p842, harsh shifts or slips. *pe | 07/08/2008 |
| 4133 | 4133A | 10022769 | Transmission slips, will not shift, ses light may be illuminated. *kb | 09/26/2007 | |
| 070730012 | 10/01/2007 | 070730012C | 10021844 | 4t65-e transmission slips, no drive/reverse, tcc shudder, noise with tcc applied. *kb updated 08-15-07. *kb (diagnosis & replace transmission, if necessary). updated 2/19/08. *nj | 06/22/2007 |
| 060730023 | 09/01/2006 | 10020766 | 4t65e transmission 1-2 shift shudder at light to moderate acceleration. replace complete second clutch assembly. *kb | 01/08/2007 | |
| 3692 | 10019447 | Ticking or knocking noise, cracked or broken flexplate. *tt | 03/15/2006 | ||
| 3692A | 10019432 | Ticking or knocking noise cracked or broken flexplate. *tt | 03/14/2006 | ||
| POWER TRAIN - AUTOMATIC TRANSMISSION - TORQUE CONVERTER | |||||
| 3724 | 3724C | 10019856 | No drive or reverse;tcc shudder; noise with tcc applied, if 4t65e and v8 application replace torque converter. *ak | 05/05/2006 | |
| 3365A | 10017095 | Ticking or knocking noise cracked or broken flexplate. various models including oldsmobile bonneville 2006. *tt | 10/24/2005 | ||
Consumer Complaints
| Fail date | miles | occurences | Purchase date |
|---|---|---|---|
| POWER TRAIN | |||
| 08/01/2012 | 1 | ||
| As i'm driving on the highway and i reach a speed of 70 mph or higher, the rpm's start to jump around and can feel the car kicking in and out of over drive. at first it started doing it going up a hill or incline on the highway but as time has gone on the problem has gotten worse and now does it even on straight, flat roads. i got on edmonds website and posted the problem on there asking if anybody knows what's wrong with it and how to fix it. i got people replying back to me saying that it is my transmission and they have had the same problem and gmc will not help them pay for or repair it. there are probably a 100 people that i know of alone that are having the same problem. i think this should be looked into, it could become a safety issue and not only that, gmc should be held responsible for making and selling defective equipment to the public and refusing to fix the problem. something needs to be done,but no matter what happens i will never buy another gmc vehicle!!!!! *tr | |||
| 08/01/2012 | |||
| As i'm driving on the highway and i reach a speed of 70 mph or higher, the rpm's start to jump around and can feel the car kicking in and out of over drive. at first it started doing it going up a hill or incline on the highway but as time has gone on the problem has gotten worse and now does it even on straight, flat roads. i got on edmonds website and posted the problem on there asking if anybody knows whats wrong with it and how to fix it. i got people replying back to me saying that it is my transmission and they have had the same problem and gmc will not help them pay for or repair it. there are probably a 100 people that i know of alone that are having the same problem. i think this should be looked into, it could become a safety issue and not only that, gmc should be held responsible for making and selling defective equipment to the public and refusing to fix the problem. something needs to be done,but no matter what happens i will never buy another gmc vehicle!!!!! | |||
| 09/06/2011 | 86859 | 1 | |
| 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. *tr | |||
| 09/06/2011 | 86859 | ||
| 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 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 hasnt 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. | |||
| 12/13/2012 | 111542 | ||
| 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. | |||
| 03/15/2012 | 1 | ||
| 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. *tr | |||
| 09/15/2010 | 55000 | 1 | |
| 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. *tr | |||
| 09/15/2010 | 55000 | ||
| 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 sliping again. i loved gm cars and if they dont recall this soon. i will be going to dodge hemi power. | |||
| 05/15/2012 | 67000 | ||
| Currently on my third transmission. second transmission was rebuilt, then replaced. car currently has 91k on it. | |||
| 09/17/2012 | 110000 | 1 | |
| 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. *tr | |||
| 09/21/2012 | 90325 | 1 | |
| 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. *tr | |||
| 09/15/2010 | 55000 | ||
| 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 sliping again. i loved gm cars and if they dont recall this soon. i will be going to dodge hemi power. | |||
| 05/15/2012 | 67000 | ||
| Currently on my third transmission. second transmission was rebuilt, then replaced. car currently has 91k on it. | |||
| 09/17/2012 | 110000 | 1 | |
| 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. *tr | |||
| 09/21/2012 | 90325 | 1 | |
| 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. *tr | |||
| 05/15/2012 | 67000 | ||
| Currently on my third transmission. second transmission was rebuilt, then replaced. car currently has 91k on it. | |||
| 09/17/2012 | 110000 | 1 | |
| 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. *tr | |||
| 09/21/2012 | 90325 | 1 | |
| 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. *tr | |||
| 05/15/2012 | 67000 | ||
| Currently on my third transmission. second transmission was rebuilt, then replaced. car currently has 91k on it. | |||
| 09/17/2012 | 110000 | ||
| 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. | |||
| 09/21/2012 | 90325 | ||
| 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 | |||
| 09/17/2012 | 110000 | ||
| 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. | |||
| 09/21/2012 | 90325 | ||
| 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 | |||
| 07/24/2012 | 85000 | ||
| Tl* the contact owns a 2006 pontiac grand prix gxp. the contact stated that while driving 55 mph, the vehicle decreased speed and lost power. the vehicle was inoperable and no warning lights were illuminated. the vehicle was taken to a private mechanic who diagnosed that the failure was with the transmission, which was not suitable for the engine size. the dealer was notified who stated that in order to diagnose a test on the vehicle, the vehicle had to be towed to an authorized dealer. the manufacturer was notified of the failure who filed a case on the contact's behalf (case number: 71-1090706145). the vin was not available. the failure and current mileage was 85,000. | |||
| 07/24/2012 | 85000 | ||
| Tl- the contact owns a 2006 pontiac grand prix gxp. the contact stated that while driving 55 mph, the vehicle decreased speed and lost power. the vehicle was inoperable and no warning lights were illuminated. the vehicle was taken to a private mechanic who diagnosed that the failure was with the transmission, which was not suitable for the engine size. the dealer was notified who stated that in order to diagnose a test on the vehicle, the vehicle had to be towed to an authorized dealer. the manufacturer was notified of the failure who filed a case on the contact's behalf (case number: 71-1090706145). the vin was not available. the failure and current mileage was 85,000. kmj | |||
| 07/24/2012 | 85000 | ||
| Tl- the contact owns a 2006 pontiac grand prix gxp. the contact stated that while driving in the highway at 55 mph the vehicle decreased the speed and loss power.the vehicle was inoperable no warning lights were illuminated at all. the vehicle was taken to a private mechanic who diagnosed that the failure was that the transmission was not suitable for the engine size. the dealer was notified who stated that in order to diagnose a test on the vehicle. the vehicle had to be towed to the dealer location and offered no assistance. the manufacture was notified of the failure who stated that the vehicle was no under warranty and provided the contact with a case number 71-1090706145 and offered no assistance. the vin was not available. the failure and current mileage was 85,000. | |||
| 06/03/2011 | 90000 | ||
| The transmission failed. was told this was a problem that occurs in gm cars. should be recall on cars in transmission that failed. cost $1200 to repair. | |||
| 08/24/2011 | 126855 | ||
| When taking off from a stop, the transmission harshly jerks into first gear. sometimes when coming from a stop, it feels the same as a manual transmission - holding the clutch down. i have had a few close calls as the car sometimes fails to give out full power from a stop. i am afraid that i will get into an accident because of this. gm cannot find any problem. | |||
| 03/19/2012 | 78000 | ||
| The transmission failed and needs to be replaced | |||
| 01/03/2012 | 75500 | ||
| Auto transmission is shifting hard and slipping. shifts hard from 3 to 4 and will slip just driving down road at road speed. getting worse day by day, and much worse when cold. started as a whinning noise about a month ago. i have been told by gm dealer that transmission will probably need rebuilt. i am original owner, car has never been driven hard. | |||
| POWER TRAIN - AUTOMATIC TRANSMISSION | |||
| 03/01/2011 | 63000 | ||
| I have a 2006 pontiac grand prix gxp. i started having transmission problems last december. the car shudders horribly around 50 mph. had the car to a few different gm dealerships. one claims they didn't find anything wrong. the other one felt the problem, replaced a solenoid and car continued to do it. at this point they claim there is nothing wrong even though the shudder is still there. car was under warranty til march. no longer under warranty and is getting worse. i know of over 150 people with w-body v8 gm cars that have experienced trans. problems. why hasn't there been a federal investigation???? i guess it may be because of the gm bailout? nhtsa, please launch an investigation and a recall!!!!! i guess you'll just wait until it causes more accidents and deaths! good job morons!! thanks for looking out for the people! | |||
| 06/17/2011 | 72000 | ||
| We have a 2006 grand prix gxp. the sight and sound of this machine is wonderful. the transmission issues make me want to drive this car up gm's, well u get the picture. it slams into first from a stop, slips when accelerating, and it has less than 70,000 miles on it. i have had this car into the dealer three times for the same problem while under warrenty. one overhaul and two diagnostic checks later the problem is still there. the fluid was changed at 47,000 miles. i have heard it is a pressure valve problem but this fix will be on my dime, as it is out of warranty now. way to go gm, another victom here. | |||
| 06/14/2011 | 103500 | ||
| I have a 2006 pontiac grand prix gxp with the 5.3l v8 engine. the car has less than 104,000 miles on it and the transmission does not always engage first gear when attempting to accelerate from a stop. when first gear finally engages it does so with a very physical banging feeling. also, the transmission shifts extremely slowing from 2nd to 3rd gear at times. this is a major safety hazard when attempting to pull out in traffic, if you are giving yourself enough time to make a turn, and the transmission will not engage, and then forcefully does so, it could cause an accident that results in injury or even death. i know that my car is only one of very many w-body v8's that have/are experiencing transmission problems. we are forced to spend our money and hurt our credit to fix a transmission that should never have been put in the car to begin with. american cars should be built better than this! if the government won't hold gm accountable for this mess, more consumers will have the same problems that i and many others are experiencing. | |||
| 06/17/2011 | 72000 | ||
| We have a 2006 grand prix gxp. the sight and sound of this machine is wonderful. the transmission issues make me want to drive this car up gm's, well u get the picture. it slams into first from a stop, slips when accelerating, and it has less than 70,000 miles on it. i have had this car into the dealer three times for the same problem while under warrenty. one overhaul and two diagnostic checks later the problem is still there. the fluid was changed at 47,000 miles. i have heard it is a pressure valve problem but this fix will be on my dime, as it is out of warranty now. way to go gm, another victom here. | |||
| 06/14/2011 | 103500 | ||
| I have a 2006 pontiac grand prix gxp with the 5.3l v8 engine. the car has less than 104,000 miles on it and the transmission does not always engage first gear when attempting to accelerate from a stop. when first gear finally engages it does so with a very physical banging feeling. also, the transmission shifts extremely slowing from 2nd to 3rd gear at times. this is a major safety hazard when attempting to pull out in traffic, if you are giving yourself enough time to make a turn, and the transmission will not engage, and then forcefully does so, it could cause an accident that results in injury or even death. i know that my car is only one of very many w-body v8's that have/are experiencing transmission problems. we are forced to spend our money and hurt our credit to fix a transmission that should never have been put in the car to begin with. american cars should be built better than this! if the government won't hold gm accountable for this mess, more consumers will have the same problems that i and many others are experiencing. | |||
| 06/17/2011 | 72000 | ||
| We have a 2006 grand prix gxp. the sight and sound of this machine is wonderful. the transmission issues make me want to drive this car up gm's, well u get the picture. it slams into first from a stop, slips when accelerating, and it has less than 70,000 miles on it. i have had this car into the dealer three times for the same problem while under warrenty. one overhaul and two diagnostic checks later the problem is still there. the fluid was changed at 47,000 miles. i have heard it is a pressure valve problem but this fix will be on my dime, as it is out of warranty now. way to go gm, another victom here. | |||
| 06/14/2011 | 103500 | ||
| I have a 2006 pontiac grand prix gxp with the 5.3l v8 engine. the car has less than 104,000 miles on it and the transmission does not always engage first gear when attempting to accelerate from a stop. when first gear finally engages it does so with a very physical banging feeling. also, the transmission shifts extremely slowing from 2nd to 3rd gear at times. this is a major safety hazard when attempting to pull out in traffic, if you are giving yourself enough time to make a turn, and the transmission will not engage, and then forcefully does so, it could cause an accident that results in injury or even death. i know that my car is only one of very many w-body v8's that have/are experiencing transmission problems. we are forced to spend our money and hurt our credit to fix a transmission that should never have been put in the car to begin with. american cars should be built better than this! if the government won't hold gm accountable for this mess, more consumers will have the same problems that i and many others are experiencing. | |||
| 04/01/2011 | 65000 | ||
| My car slams into gear from a dead-stop. it grinds very loudly when then tcc is applied. shifts hard and shakes very violently, sometimes to the point where it is almost undrivable. gm dealer refuses to acknowledge the problem because they don't want to fix it. they claimed the grinding noise is a tick or rattle caused by timing chain for the displacement on demand when the engine goes from 8 to 4 cylinders. the tsb only states it would make the noise when going from 8 to 4, not 4 to 8. my car only makes the noise when i'm on the throttle, so it would not be going into 4 cylinder mode. gm are a bunch of lying dirtbags who don't want to fix the problems they cause. they compromised the reliability of this transmission to make it shift smoother. i'm a member of an online forum of just the ls4/4t65e-hd fwd cars and there are over 138 people with these cars who had or are having transmission problems/failures. why hasn't there been some kind of recall yet? this is certainly a big enough problem to warrant a recall! | |||
| 03/29/2011 | 60000 | ||
| 2006 pontiac grand prix gxp transmission failure at 60,000 and 100,000 miles. | |||
| 02/06/2010 | 64000 | ||
| Transmission shudder at cruising speeds. delay when leaving from dead stop. car slams into gear hard. grinding/crushing sound. | |||
| 01/08/2011 | 64900 | ||
| My transmission has not failed completely as of yet, but i am experiencing a lot of problems with it.the car shudders violently during acceleration. sometimes more severe than others. very noticeable loss of power. had the transmission serviced and the fluid was almost black and there was a excessive amount of metal or tcc material in the bottom of the pan. car just reached 65,000 miles. | |||
| 10/18/2010 | 70000 | ||
| Transmission failure, the transmission fails to fully engage in to any gear when it is supposed to, it will slip and catch from a stop, the torque converter fails to lock up and all gears slip under moderate to heavy acceleration | |||
| 05/15/2010 | 83000 | ||
| No major events leading up to the failure, just average city/highway driving with little to no aggressive acceleration. regular maintenance is always taken care of. the transmission in my 2006 grand prix gxp, with 88,000km, likes to slip every now and then and sometimes fails to accelerate until it the rpms reach about 1800, then it finally catches and pulls hard. this does not happen all the time, but i'm worried the transmission is taking damage everytime it does occur, and may eventually lead to a failure, possibly resulting in a crash. nothing has been done yet to fix the problem, as it only happens a few times week, and my powertrain warranty has expired. i've done some research, and judging by my sources, the transmission mated to the 5.3l ls4 v8 front drive gm vehicles is rated at 280lb-ft of torque, while the motor is clearly advertised at 323lb-ft of torque. thank you for your time. | |||
| 10/18/2010 | 70000 | ||
| Transmission failure, the transmission fails to fully engage in to any gear when it is supposed to, it will slip and catch from a stop, the torque converter fails to lock up and all gears slip under moderate to heavy acceleration | |||
| 05/15/2010 | 83000 | ||
| No major events leading up to the failure, just average city/highway driving with little to no aggressive acceleration. regular maintenance is always taken care of. the transmission in my 2006 grand prix gxp, with 88,000km, likes to slip every now and then and sometimes fails to accelerate until it the rpms reach about 1800, then it finally catches and pulls hard. this does not happen all the time, but i'm worried the transmission is taking damage everytime it does occur, and may eventually lead to a failure, possibly resulting in a crash. nothing has been done yet to fix the problem, as it only happens a few times week, and my powertrain warranty has expired. i've done some research, and judging by my sources, the transmission mated to the 5.3l ls4 v8 front drive gm vehicles is rated at 280lb-ft of torque, while the motor is clearly advertised at 323lb-ft of torque. thank you for your time. | |||
| 10/18/2010 | 70000 | ||
| Transmission failure, the transmission fails to fully engage in to any gear when it is supposed to, it will slip and catch from a stop, the torque converter fails to lock up and all gears slip under moderate to heavy acceleration | |||
| 05/15/2010 | 83000 | ||
| No major events leading up to the failure, just average city/highway driving with little to no aggressive acceleration. regular maintenance is always taken care of. the transmission in my 2006 grand prix gxp, with 88,000km, likes to slip every now and then and sometimes fails to accelerate until it the rpms reach about 1800, then it finally catches and pulls hard. this does not happen all the time, but i'm worried the transmission is taking damage everytime it does occur, and may eventually lead to a failure, possibly resulting in a crash. nothing has been done yet to fix the problem, as it only happens a few times week, and my powertrain warranty has expired. i've done some research, and judging by my sources, the transmission mated to the 5.3l ls4 v8 front drive gm vehicles is rated at 280lb-ft of torque, while the motor is clearly advertised at 323lb-ft of torque. thank you for your time. | |||
| 10/18/2010 | 70000 | ||
| Transmission failure, the transmission fails to fully engage in to any gear when it is supposed to, it will slip and catch from a stop, the torque converter fails to lock up and all gears slip under moderate to heavy acceleration | |||
| 05/15/2010 | 83000 | ||
| No major events leading up to the failure, just average city/highway driving with little to no aggressive acceleration. regular maintenance is always taken care of. the transmission in my 2006 grand prix gxp, with 88,000km, likes to slip every now and then and sometimes fails to accelerate until it the rpms reach about 1800, then it finally catches and pulls hard. this does not happen all the time, but i'm worried the transmission is taking damage everytime it does occur, and may eventually lead to a failure, possibly resulting in a crash. nothing has been done yet to fix the problem, as it only happens a few times week, and my powertrain warranty has expired. i've done some research, and judging by my sources, the transmission mated to the 5.3l ls4 v8 front drive gm vehicles is rated at 280lb-ft of torque, while the motor is clearly advertised at 323lb-ft of torque. thank you for your time. | |||
| 04/03/2010 | |||
| I was just informed by the dealership on april 3 2010 that my transmission needs to be replaced in my 2006 grand prix, which i purchased new. this is a very disturbing discovery being that my car was brand new at the time of purchase and now needs an entirely new transmission. the incident that occurred which prompted me to take my car to the dealership happened appx 2 weeks ago when i tried to press the gas pedal and the car would not accelerate. luckily, i was on a side street and not on a major highway which would have caused serious incidents. this is the only time this has happened and i have received no notifications through onstar that there is a problem with my transmission. so, i am concerned about this issue and wondered where i can seek assistance. | |||
| 04/30/2008 | 45000 | ||
| Tl*the contact owns a 2006 pontiac grand prix. while driving approximately 30 mph, the vehicle jerked and then stalled at a traffic light. she shifted the gear into park in order to restart the vehicle. afterwards, the vehicle would not accelerate past ten mph. the vehicle was towed to a local repair shop and they stated that the transmission was defective. the vehicle was repaired. approximately two months later, she noticed a loud noise and her vehicle was driven to a local repair shop. the mechanic informed her that there was a hole in the water pump that needed to be replaced. four months later, the windows would not roll down. the vehicle was driven to a local repair shop and the mechanic reviewed a diagram of the vehicle. the diagram stated that the fuse for the window was not located in the proper place. the window has not been repaired. the dealer stated that the failure was not under warranty. the manufacturer has not been notified. the current mileage was 50,000 and failure mileage was 45,000. | |||
| 02/16/2008 | 59090 | 1 | 05/31/2006 |
| Approx. one week of transmission trying to kick into next gear, then one day (after about 4 days of this occurring) transmission completely died. able to put into drive but trans was not communicating with wheels (per onstar diagnostic report). had to be towed to dealer who said that there were several notes on computer system and that the fluid was burnt beyond recognition. had car towed to a different shop w/ ase certified mechanic who said that while trans. fluid was a little burnt, was not that bad. either way, a new transmission is going to have to be put into car and there is a chance of this happening again. pontiac/gm is aware of problem due to tsb's being put out for problem, but no recall has been issued yet. refuse to purchase a 3-4k transmission for this problem to probably happen again before 60k miles. *tr | |||
| 09/05/2007 | 60000 | 1 | 01/09/2006 |
| Vehicle driven for 60,000 miles - 95% highway miles. complete transmission failure - slipping and unable to drive, and oil pouring on ground. walk home failure on highway. pontiac representative indicated that this was normal wear. *jb | |||