2017 GMC Yukon XL transmission problems

Filed Aug 26, 2026 · Transmission · GA

Vehicle is shuddering during acceleration and while changing gear during driving affected by either the transmission or power train

Filed Aug 8, 2026 · Transmission · MN

Transmission shudders and shifts very hard in lower gears. Going from drive to reverse the transmission shifts hard.

Filed Mar 1, 2026 · Transmission · WI

Transmission problems, loss of power. Put a reader on car and said it was a selinoid. Replaced that and now it has happened again

Filed Jan 26, 2026 · Transmission · GA

Gear slippage, loss of power

Filed Jun 23, 2025 · Transmission · MI

My transmission failed again after being replaced by General Motors certified dealership. The transmission in question has failed again after less than five months being back in service. In 2024 and 2025 my vehicle has been in and out of the service department at other dealerships and they cannot repair the vehicle according to the dealerships they do not have the staff for it. General motors will not stand behind the transmission as they have now labeled it as a part so they will not have to provide transportation. According to dealerships in my area in Michigan, they do not have the staff or the parts to service my vehicle. I contacted General motors customer service multiple times regarding the situation. We truly have a bad transmission again in my vehicle. The transmission in question is a C8 transmission that has failed due to shuttering and downshifting, which the replacement remanufactured transmission for $8000 continues to fail. General motors will not buy back this vehicle or address this ongoing issue. I truly believe I am not the only person with transmission issues as this is a major defect by the manufacturer, which is General Motors. Will you please look into my complaint is this is caused severe hardship to my family. General Motors needs to take responsibility for this failure to the transmission. I’ve had seven other items that have failed also on this vehicle, including the engine. Thank you for your time and consideration looking into this matter. Sincerely [XXX] . INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jun 12, 2025 · Transmission · VA

In May 2025, my vehicle suddenly started jerking, shaking, and almost stalled out while driving. I was on a busy 3 lane roadway with 6 passengers total. As I would try to accelerate, the power was significantly decreased. I felt it jerk between shifting several times. My check engine light came on. I was so scared that someone would hit my vehicle and injure us. I brought it to a GMC dealership. They said that my transmission failed, metal in the transmission fluid. How is this possible? Upon researching this problem, this is a common issue with the 2017 GMC Yukon Denali. There are class action law suits and lemon law lawsuits against GMC regarding this problem which causes major safety concerns. My vehicle has been well maintained with lots of service records to prove it. I have babied her and I’ve never towed anything. This transmission issue needs to be addressed and recalled. I need a new transmission which will cost between $5,000-$7,000. This is just horrible and disappointing regarding the quality and reported issues that are not being recalled by GMC.

Filed Mar 26, 2025 · Transmission · NY

While driving it will jerk into gear shifting is rough.

Filed Mar 22, 2025 · Transmission · OH

Transmission shudder lunching hard up and down shift

Filed Dec 5, 2024 · Transmission · TN

I purchased a 2017 yukon xl denali. In the short time that I have had the vehicle the transmission has started to make a loud audible popping noise when coming to a complete stop. I have take the vehicle to the GM dealership multiple times to try and get the problem fixed and according to them it is something with the transmission that they don't know exactly how to fix. So I am stuck with this 8l90 transmission that is a piece of junk and can't even get a rebuilt transmission from companies like Jasper due to the issues of these transmissions.

Filed Oct 14, 2024 · Airbags, Suspension · MS

Noting that prior to this we only had one issue with transmission and we did the flush and it did fine for several thousand of miles. Fast forward to a few days ago. As I was driving down the highway I came to a stop at the red light. Once it was green and I pressed on the accelerator with my foot per usual. And it did not move it pushed the gas peddle and nothing at all happened. I was stuck in the highway could not move until I’m assuming the transmission finally shifted jarring my entire car and it allowed me to get to a safe place at 20 miles an hour max. Keep in mind I was in the middle of the highway not knowing what was happening. With my precious babies in the car. Thanking God we were not injured. This problem is so common and notorious among GMC Yukons 2017 year models. It’s saddening that now I have a car note on a car that will not go. Transmissions are back ordered who knows when I can have my car back this economy is horrible trying to stay afloat. And now we have a vehicle that won’t drive and no time forks of when it can drive. This needs to be addressed asap. Other people are dealing with the same things and GMC need to make this safety concern a thing of the past. Make a recall.