Automatic Transmission Torque Converter problems of the 2015 GMC Yukon

The contact owns a 2015 GMC Yukon xl. The contact stated while driving 50 mph and while slowing down, the floor of the vehicle was vibrating. The vehicle was taken to the dealer and the contact was informed that the failure might be caused by the torque convertor. The transmission fluid was flushed and replaced and the vehicle operated normally; however, the failure recurred. The contacted stated while driving 50 mph the vehicle was shaking and vibrating. The vehicle was taken to the dealer for diagnostic testing and the contact was informed that the torque converter needed to be replaced. The contact was informed that the transmission might also need to be repaired or replaced. The manufacturer was not contacted or notified of the failure. The failure mileage was 98,000.

The 8 speed automatic transmission on my GMC Yukon denali has a slippage issue that has persisted in our vehicle for a while unresolved. Gm has replaced torque converter, module and now they are claiming through dealer that the issue resides with at fluid. This slippage is bad because car jerks and sometimes hard. This issue needs to be addressed by gm as they know they have issues with this 8 speed at. The issue happens at stops and at slow speeds.

Vehicle sputters when driving off from a start or accelerating while driving also when coming to a complete stop, after being stop it feels like the torque converter is not in sync with the rest of the transmission making it feel like someone hit you from behind took it to my local dealer they performed a transmission flush and a reflash of the computer it seemed to fix the problem but came back after about a month or so, dealer stated that another recall was coming in March of 2019 (still waiting) that was going to solve the problem. Gm needs to address this problem with the powert train believe the affected years for GMC Yukon is 2015, 2016, 2017 there is a class action lawsuit out there about this. Good luck everyone.

A year ago, I was at service at the same dealer with a transmission problem(torque converter) with my GMC Yukon xl 2015. Warranty transmission was made 08/2017. On 10/18/18, in the city of atlanta GA on highway 400, the car began to twitch when you press the gas and vibrate strongly, uttering sounds of howling, driving was not safety!!! re-issue repair from diller carl black Buick GMC roswell GA.

I give!!! now break lights not working!!! right break light is out and left driver is intermittent. Vehicle has 37k on it and was just picked up from the dealer after having 1 of many issues through the past year rectified and now this! this is a significant safety hazard and could tremendously injure someone. Right now my car cannot even pass inspection due to the faulty equipment installed by the manufacture that is a danger to my safety. I have owned many GMC's (6 total) through the years and this being the worst!! the latest, I have had the torque converter replaced in Aug 18 - due to shuddering and vibration. Then the steering column replaced due to popping , back hatch hinge replaced due to popping and malfunction, back glass door rubber gasket replaced due to leaking, sharkfin antenna replaced due to leaking, sunroof gasket replaced due to leaking, new tires at 500 miles due to excessive vibration. Back door adjusted due to slamming, and additional slight issues. The radio has a constant glitch on the screen since day one that after being taken in numerous times, of course the dealer cannot replicate the problem and keeps performing a flash update which never helps and as soon as I drive off it glitches again. I have contacted gm regarding the brake lights, radio, and now my passenger step is malfunctioning not to mention a recall was just released on the power steering. Will the repairs ever end? guess once I trade it in on another manufacture as this will most likely be the last GMC I will ever purchase!! I do not have time to live my life at the dealer for a high end purchase that is the worst mistake ever!! not to mention being a safety hazard!!!.

When coming to a stop there would be a sudden surge and it felt like the vehilce was being pushed forward. There has been a few occasions where we almost hit something in front of us because of this surge. There was a bad shutter though out the vehicle at 30 to 50 mph. Made complaints to dealer. They couldn't duplicate the problem. This was at roughly 6k miles at the time of the first oil change. At 10k miles the vehicle stalled out and died in our drive way after putting it into reverse to back out. The vehicle rolled back into the street as our driveway is at a incline with out any functions or controls. Lucky traffic was light and they were able to avoid hitting us. I was able to start it eventually and drove its strait to the dealership. They found the torque converter went bad and replaced it. Complained about the rough ride, noises and loose feel coming from the front end several times at 20,000 miles and 30,000 miles. When driving the vehicle over bumps while in a curve the vehicle would jerk to the side pulling the steering wheel hard to the side it was pulled towards. There were a few occasions where we almost hit a vehicle or concrete wall. They finally replace some components on the front end. No more noises from the front end for about 2,000 miles and then it comes back. The shutter is back along with erratic shifting. Service replaces the torque converter again at 45,000 miles. This time it last a little bit long and I don't start having issue with the torque converter until nearly 60,000 miles. The front end still pops, creaked and feels loose at times and the torque convertor is still failing.

In motion vehicle shutters, clunking in between gears, clunks going into reverse, shutters between 30-40 mph and over 65 mph. Bought vehicle brand new off show room floor, vehicle was out of alignment when I purchased it. Around 12,000 miles noticed it was shuttering and as time has continued it has progressively gotten worse. At 17,000 miles 11/16 torque convertor went out and was replaced. 1/17 back in shop now with same problems but much worse.