2017 GMC YUKON Complaints

I was driving my car and it started making "clanging" and "banging" noises and jolting/jerking forward. It was scary to drive because of the noise and the jerking foward. I was afraid that my car was going to just stop working, I would get stuck/stranded somewhere or my car was going to blow up. I brought it in to the dealer two times. The first time they thought it was the battery so they replaced the battery but that didn't fix the problem. The second time I left it there for days and they told me that I needed a new transmission. The problem was reproduced and inspected by them. There were no warning lights or messages prior to the failure. The problem started on approximately January 6, 2025. Online, I have read from other sources that 2017 - 2020 GMC YUKONS are know to have transmission problems. My car only has 58,000 miles on it, has been serviced consistently, and should not need a new transmission at this low mileage point.( 150,000 to 200,000 is the norm for transmission replacement)

Not even 100,000 miles on it and the engine blew. Started with a lifter issue. Everyone I talk to with Yukons and GMC in general say it’s a problem. Just a search on the internet shows that they all have this issue… a well maintained car should not have this issue and it’s clearly a GMC issue and it needs to be fixed. The repair shop can’t even order me a new engine due to this being a real problem all over with GMC.

The contact owns a 2017 GMC Yukon XL. The contact stated while parked and attempting to start the vehicle, the contact heard an abnormal knocking sound coming from the vehicle. The contact attempted to depress the accelerator pedal however, the vehicle failed to respond as needed. The contact stated that a dealer and an independent mechanic were contacted. The vehicle was towed to an independent mechanic where it was diagnosed and determined that the camshaft was not aligned. The contact was informed that the independent mechanic would be able to align the camshaft; however, if the failure persisted there would be a cost for the repair. The vehicle was not repaired. The manufacturer was not notified of the failure. The contact related the failure to N232430470 - Special Coverage (Camshaft Position Actuator Valve Solenoid - Bank 2 (Left Side) Exhaust); however, the VIN was not included in the special coverage program. The approximate failure mileage was 131,000.

I am submitting this complaint regarding a persistent and significant transmission issue with my 2017 GMC Yukon Denali, which I purchased in June 2024. The transmission has been malfunctioning, causing the vehicle to jerk and hesitate, particularly during acceleration. This component is available for inspection upon request. Safety Concerns: This issue poses a serious risk to my safety and the safety of others on the road. The jerking and hesitation during operation can result in delayed acceleration or unexpected speed changes. These problems have occurred while merging into traffic and driving on highways, creating hazardous situations where immediate and reliable vehicle performance is critical. Reproduction and Inspection: The problem has been reproduced and confirmed by an independent mechanic who inspected the vehicle. The diagnosis identified a transmission malfunction, which appears consistent with reports from other owners of GMC Yukon models. However, the vehicle has not yet been inspected by the manufacturer, police, or insurance representatives. Warning Symptoms: There were no warning lamps or error messages displayed prior to the onset of the issue. The jerking and hesitation began soon after I purchased the vehicle in June 2024 and have progressively worsened over time. I have discovered that GMC has issued recalls for similar transmission issues in later Yukon models (2021 and 2022). However, despite widespread complaints, earlier models like my 2017 Yukon Denali have not been included in these recalls. Given the safety risks associated with this transmission defect and the frequency of similar complaints from other owners, I urge the NHTSA to investigate this matter. Prompt action is essential to ensure the safety of drivers and passengers in affected vehicles and to hold the manufacturer accountable for addressing this defect.

the lifter is stuck an making a clicking noise an where on the high an truck cut off let it set for a minute then it crank by up an drove to a shop an they said it was a lifter stuck sounded like number 2 lifter this needs to be covered by gmc as a recall.

Transmission shutter causes the car to vibrate which could lead to transmission failure.

The contact owns a 2017 GMC Yukon. The contact stated that after starting the vehicle, the vehicle was vibrating abnormally. The front of the vehicle was shaking. The contact stated that while at a stoplight with the brake pedal depressed, the vehicle stalled but independently restarted. The engine warning light flashed on and off. The vehicle was taken to the local dealer, where it was diagnosed with transmission and engine failure. The vehicle was repaired, but the failure recurred. The manufacturer was contacted and confirmed there were no recalls on the VIN related to the failure. The contact was referred to the NHTSA Hotline for assistance. The failure mileage was approximately 50,000.

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.

Vehicle Malfunction Incident Report On [11/2724], while stopped at a traffic light, the vehicle experienced a sudden and significant loss of power and gear shifting capabilities. The engine accelerated, but the vehicle struggled to move and shift gears, making it difficult to cross the intersection. After a short distance, the vehicle accelerated again, but there was no forward movement. The vehicle was subsequently parked in a nearby neighborhood, where it became completely immobile. Attempts to engage reverse or drive were unsuccessful. The vehicle emitted a loud noise, and a check of the transmission fluid and other fluids revealed no issues. After turning the engine off and restarting, the vehicle was able to engage drive, but it was limited to second gear. The vehicle then lost momentum again, making it difficult to reach home. It is important to note that no engine light illuminated during the incident, and there were no visible fluid leaks. All routine maintenance has been performed according to the manufacturer's recommendations. A mechanic has inspected the vehicle and diagnosed potential transmission issues. Requested Action: We request a thorough investigation into the cause of this malfunction. We believe that a transmission issue is the likely culprit, but further diagnostic testing is necessary to confirm the exact problem. We have seen that this has been a reported issues with these vehicle and the manufacture has not done anything for recalls.

I was taking my client to school. I stopped at the stop sign. When I pushed gas pedal to go, my truck did not go, it strained did a big jerk then went. The next morning it did the same thing & later on that day, it did it again. Two days later I had to stop at red light. When the light turned green I pressed the gas pedal & nothing. It did not go at all. I turned the ignition off and back on twice & put it in drive still did not go but was slowly going backwards. A by-stander stopped to assist me getting my truck out of traffic.