2016 GMC Yukon XL: shudder or vibration when accelerating

Filed Sep 3, 2026 · Transmission · GA

1. My vehicle is having transmission issues with shuddering and shifting. M5U RPO code 8L90 transmission. 2. My safety and the safety of others is a concern if the transmission is not working as intended my vehicle could be at risk an accident that could be avoided. 3. The problem has not be reproduced or confirmed by a dealer I work on my own vehicles and I am going to repair this issue myself if able. 4. There are no trouble codes on my vehicle when scanned with an OBD2 scanner.

Filed Oct 31, 2025 · Electrical, Transmission · TX

The car started to have issues shifting when driving- automatic transmission. It would jolt or shudder to try to shift. I was at a light intersection attempting to turn left to go on the on ramp of a highway, it attempted to shift as I sped up from a stop and it got stuck and started making a sound as if you were to press the brake and gas at the same time, similar to that, a car was coming in my direction at the same time and it finally clicked into gear. Absolutely terrified me, my father in law came and switched me vehicles and took mine to the dealership where it stayed for 3 days and they diagnosed it saying it needed a new transmission, quoting us at $11,000. Obviously we can’t afford that. We had all the filters and lines of the transmission cleaned. And now it’s just gotten worse and worse. That was the first time it happened. Now it’ll shudder like that any time it’s switching gears at any speed. Another time since then, it got stuck in the same situation after pulling out of my kids school driveway, it got stuck and wouldn’t click, when it finally did it started shaking uncontrollably in the street and thankfully I live two streets over and made it to my street before it just shut off on its own. I coasted it right into the front of our house and then it would not come back on, at this time we searched the internet over and over to find try to find an easy fix. We let it sit before it came back on. This is our family vehicle. I’ve seen that many many people have this exact issue with this exact same year and model. Its not coincidental and It’s extremely unsafe. Especially with kids in these vehicles. I’m terrified one day when it gets stuck or shuts off we will get hit.

Filed Aug 13, 2025 · Transmission · HI

The transmission is going out and it started with a shudder. The change for the transmission filter and oil was only a temporary fix. It also shifts hard or there is a delay in the shift.

Filed Oct 6, 2022 · Engine, Transmission · GA

At 90500 miles my Yukon xl started shuddering and the transmission started failing and I have never used it to pull anything so this was very dissatisfying for a 75k vehicle

Filed Jun 21, 2022 · Transmission · IL

Automatic 8 speed transmission shudder issues. Slipping, Jerking, clunking, delay, loss of power. Local GMC "replaced fluid as in latest service bulletin"

Filed Jun 26, 2020 · Transmission · 90,000 miles · PA

Instructed gmc dealer to perform 90,000 mile transmission maintenance (as per gmc manual: "change automatic transmission fluid, if equipped. If filter is serviceable, change filter"). Gmc dealer decided to perform transmission flush instead which does not include a filter change. Within short period of time, transmission started to shudder when in 3rd and 4th gear. Dealer insists this has nothing to do with service they performed and told me there is a known problem with the torque converters. Dealer stated on the phone "we do 2 or 3 of these a week... Often on vehicles with only 20,000 miles". A quick search on the web for gm 6l80 transmission problems will show all of the owners with similar torque converter issues. Dealer gave rough estimate of $1700 to replace torque converter.

Filed May 10, 2020 · Transmission · 65,000 miles · TN

Vehicle shudders when shifting in lower gears. Possible torque converter or other transmission problem.

Filed Apr 29, 2020 · Transmission · 55,000 miles · IN

Tl* the contact owns a 2016 gmc yukon xl. The contact stated that while coming to a stop, the vehicle shuddered while the transmission slipped from first to second gear. The vehicle was taken to dellen chevy buick gmc (2527 w main st, greenfield, in 46140) to be diagnosed. The contact was informed that the transmission temperature sensor needed to be replaced. The vehicle was not repaired. The failure recurred 3 times. The manufacturer was notified of the failure. The approximate failure mileage was 55,000.*dt

Filed Feb 3, 2020 · Engine, Lights · 85,000 miles · CA

Led brake lights don't work car shakes and transmission shudders while driving 35-45mph

Filed Dec 27, 2019 · Transmission · 33,361 miles · NC

Transmission shuddering and hard, clunky shifting

Filed Oct 23, 2019 · Engine, Transmission · 42,241 miles · NY

Tl* the contact owns a 2016 gmc yukon xl. While driving at low or high speeds, the vehicle shook violently as if it would fall apart. Also, the check engine warning indicator illuminated. The vehicle was taken to cappellino buick gmc (5411 transit rd, buffalo, ny 14221) where it was diagnosed with a torque converter shudder failure and a transmission flush was completed. The dealer advised the contact to drive for 200 miles to correct the failure; however, the failure continued. The vehicle was taken back to the dealer where another transmission flush was completed. The contact was also informed that the sheet metal on the cross-member was causing the vibration. The cross member was repaired. After the repairs, the cabin of the vehicle was uncomfortable with uneven pressure and a high velocity vibration. The same dealer and west herr chevrolet of williamsville (8040 transit rd, williamsville, ny 14221) performed several transmission flushes. The manufacturer was notified of the failure and a claim was filed. The contact was compensated for the failure; however, the failure continued. The contact stated that the vehicle was currently at the west herr dealer as the vehicle was stalling, the rpms increased, and the traction and check engine warning indicators illuminated. The vehicle was not diagnosed or repaired. The approximate failure mileage was 42,241.

Filed Sep 23, 2019 · Transmission · 55,000 miles · TX

Transmission has not shifted correctly. Shuddering occurs or shifts are not smooth