Automatic Transmission Torque Converter Problems of GMC Sierra 1500

The contact owns a 2016 GMC Sierra 1500. The contact stated while driving at various speeds and depressing the accelerator pedal, the vehicle hesitated while responding, shuddered, and made an abnormal sound. The vehicle was taken to the dealer, where it was diagnosed with torque converter clutch shudder and failure. The dealer determined that the torque converter clutch needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure and offered to partially cover the cost of the repair. The failure mileage was approximately 66,456.

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The contact owns a 2015 GMC Sierra 1500. The contact stated while driving 75 mph, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. Additionally, the contact stated that there was an abnormal squeaking sound coming from the vehicle. The vehicle was driven to the shoulder of the roadway. The contact stated that the failure reoccurred while hauling a trailer full of horses. The vehicle was towed to the contact's parent's residence. The vehicle was diagnosed by an independent mechanic and was diagnosed with a failed torque converter. The contact was informed that the torque converter needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 129,000.

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Transmission shurtting, jerks, and vibration, bad torque converter bubble and pelling paint. It feel likes engine is lossing power.

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The contact owns a 2017 GMC Sierra 1500. The contact stated that while driving at various speeds, the vehicle experienced severe transmission shudder and was vibrating while driving up inclines. The vehicle was taken to the local dealer who diagnosed that the transmission torque converter was faulty and needed to be replaced. The vehicle was not yet repaired. The manufacturer was notified of the failure. The failure mileage was 80,000. The VIN was not available.

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While driving the vehicle home from work, the vehicle shut down in the middle of traffic on a street while stopped at a traffic light and would not move after attempting to put the truck in "drive". I had to call for an emergency roadside service (tow truck) which towed the vehicle to a GMC dealership service dept. I was told by the service technician that the transmission torque converter has disintegrated and it would cost over $5000 to repair. This vehicle did not provide any warnings (no warning signal displayed on the instrument panel) that the transmission needed servicing. I have owned this vehicle for 3 years. This vehicle needs reviewing for a recall.

The contact owns a 2020 GMC Sierra 1500. The contact stated that upon exiting the vehicle, he noticed that the vehicle was leaking an unknown fluid. There was no warning light illuminated. The vehicle was taken to simpson Buick GMC of buena park (6600 auto center dr, buena park, CA 90621) where it was diagnosed with the torque converter needing to be replaced. The vehicle was repaired however, the failure recurred. The manufacturer was not informed of the failure. The failure mileage was approximately 11,000. The VIN was unavailable.

I have an 8 speed transmission that stalls upon acceleration lurches and surges when trying to shift gears. When coming to a stop lunges forward due to a shift in the transmission. I have taken to the dealer multiple times and express my concerns they finally replaced torque converter and flushed transmission now they state that it is operating correctly.

After cold starts when accelerating the transmission slips from 1st to 2nd and throws your body forward. After that first gear change it doesn't do it again until another cold start. Around 34000 miles I am getting a rumbling vibration through the dash and steering wheel when holding speed between 35-75 mph. The rpm guage will jump slightly and it will feel like going over rumble strips. Acceleration is very weak at times. Sometimes its ok. There has to be something done with these torque converters and transmissions by gm. Unacceptable for a 40-50k dollar truck!.

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Purchased vehicle brand new from dealership and from day one, I notice the power train slow to shifting from gear one to two. The vehicle hesitates and sometimes shifts hard only during cold starts. Every time I take it in for my schedule service I report the same issue to my service advisor along with the service manager at the GMC dealership. They say that it is a normal problem and they know about it. The last schedule service I told them about the same problem, this time his service tech test drove vehicle and said torque converter was shuddering causing vibration. The solution he said they changed the transmission fluid. Today I still notice the same issue and will report to the dealership next time I take in for service. I have read this is a common problem from the manufacture since putting in an 8 speed transmission. I feel this is a safety issue and some day I may feel that the transmission may lock up on me and may cause an accident.

Took the truck to get a diagnostic check due to the truck in driveway would not go into reverse so husband put it in drive to pull up a little to see if it would help to then go into reverse, instead, the truck jerked so hard & almost threw my husband & son into the garage door that morning. Husband & son came back in all shook up. The scan diagnostic code-chck showed: trans fluid-indeed full; but way burnt; needs transmission; front pump making noise in transmission; torque converter; exhaust shows signs of back pressure-and one running hotter than the other; the left side running 100+ hotter than the right - needs transmission assembly removed & repaired; reman gm trans; y-pipe w/both converters; fluids flush nuts bolt gaskets. I was told it would not be a good idea to drive it. I am retired military and maintained the truck throughout my military career, but no warnings showed on the dash reader for something wrong with transmission. It is a 2014 GMC Sierra 1500 slt 5. 3l v8. VIN#[xxx]. Need help if this issue has ever been placed on the recall list? if not, it should be. This issue could kill someone if it were to jerk while driving on the road. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

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Torque converter. Me and along with 4 other people are having problems with it. Upon start up and driving it starts to get sluggish and then just comes almost to a complete stop only building rpm's accrodding to the gm dealership it's normal. With all the GMC trucks I've owned it has never done this. And is only starting to do it over the past couple of months. I've talked to a guy who just had 2 replaced in his truck and is continuing to have the problem. To avoid any vehicle damage for anyone else I'm considering if you can check and see if anyone else is having the issue. I take very good care of my truck I don't mud in it or drive it crazy(wreck less). Dealership is also pretty much refusing to look into the problem or diagnosing it considering that it's �normal� for the truck do that. Which I strongly disagree.

Tl-the contact owns a 2015 GMC sierra. The vehicle failed to shift out and stick while in gear. While driving and various speeds the vehicle accelerated without warning . The vehicle was taken four times to laroche Chevrolet Buick GMC Cadillac 00 us-290, brenham, TX 77833 (979) 836-6666 where diagnosed that the transmission fluid, torque converter and reprogrammed was needed. The vehicle was repaired but the failure recurred. The vehicle was taken to mac haik Chevrolet 11711 katy fwy, houston, TX 77079 (281) 497-6600 who stated that vehicle was working as designed. The vehicle was not diagnosed or repaired. The manufacturer was contacted but did not assist. The failure mileage was 7,000. Ap.

2016 gm sierra - 85,000 miles never had many issues with jerking/jumping/braking as many have described. Went to accelerate from a stop light and the truck would not shift out of second gear. Could not get truck to shift and would then shift hard upon deceleration. Took to the dealer service department. They said the torque converter is shot and 4th, 5th and 6th gear is trashed. I only have 85,000 miles on the truck, mostly highway miles and very limited towing on the truck. Gm changed their warranty from 100,000 miles to 60,000 miles. I had an extended warranty up to 75,000 miles. Now they won't help with any of the cost. Would hope they might stand by their equipment a little more than that. Especially since they are having some major issues with their transmissions as shown in all the complaints.

When truck is in motion shifting from reverse to first/second gear it jumps forward into gear. There is a hesitation shifting into gear. It is a very well known problem with the 8 speed transmission. I have been in contact with the dealer but 3 different times. The know the problem as does GMC. They actually can fix the problem. But will not do anything until GMC sends out a technical bulletin. There has been an unbelievable amount of complaints. I understand GMC is hesitant because they may have to replace transmission and or torque converter which would naturally cost a lot of money. But also I understand changing to a different transmission fluid will help. But dealer will not do it. This has been going on since the day I bought it brand new and I only have 5700 miles on it. I have not had accident because of this. But concerns me with the hesitation and jumping in to gear. Also it does not do it every single time. Depends on your take off speed.

Transmission shifts abruptly and torque converter causes shudder at highway speeds. Truck has been serviced twice for the same issue by dealer and dealer recently told me problem is unresolvable.

Seats popping noise when weight shifts (start,stop,etc. )first attempt was to replace the seat back. Second was to replace the entire seat minus the cover. Third time in the service manager wanted to contact the area gm manager for direction. The gm area manager told the service manager to make no repair and direct me to call gm. This truck also has been in for service to the brake rotors to be re surfaced with only 4,600 miles on the truck. The transmission has re calibrated two times one for the lock-up torque converter,and once for a hard shift from first to second gear. The truck has a harder shift now than before.

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