My 2026 GMC Yukon Denali Ultimate with the 6.2L V8 had a major engine failure on November 2, 2026, while driving with only 3,668 miles on it. I bought it brand new in July. The dealership told me it was likely a rod or rod bearing failure and found metal in the oil. The entire engine has to be replaced. This is a serious safety concern, especially if the engine fails while driving at highway speeds. A brand-new vehicle should not have a catastrophic engine failure with less than 4,000 miles. I’m concerned other 2026 Yukons with the 6.2L engine could have the same issue.
The worst 2026 GMC Yukon problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Engine38
- Transmission12
- Electrical4
- Body2
- Driver assistance1
- Fuel system1
- Locks1
- Seats1
- Visibility1
- Wheels1
Specific symptoms reported on the 2026 GMC Yukon
Engine failure 22Knocking 8Loss of power 7Check engine light 6Stalling 6
Recalls 3
Wheels: hub
- What is wrong
- General Motors, LLC is recalling certain 2025–2026 Cadillac Escalade, Escalade ESV, Chevrolet Suburban 1500, Tahoe, GMC Yukon, and Yukon XL vehicles with 24-inch wheels. Incorrect bolts may have been installed on the left and right front wheel hubs, which can result in the bolts loosening or deforming over time.
- Risk
- A bolt that loosens or breaks during vehicle operation can result in loss of vehicle control, increasing the risk of a crash.
- Remedy
- Dealers will replace the front left and right wheel hub bolts, free of charge. Owner notification letters were mailed June 18, 2026. Owners may contact GMC customer service at 1‑800‑462‑8782, Chevrolet customer service at 1‑800‑222‑1020 or Cadillac customer service at 1‑800‑333‑4223. GM's number for this recall is N262554630. Vehicle Identification Numbers (VINs) involved in this recall became searchable on on May 14, 2026.
Recall number 26V304000 · Recall details
Power train: transfer case (4-wheel drive)
- What is wrong
- General Motors, LLC (GM) is recalling certain 2026 Cadillac Escalade and Escalade ESV, Chevrolet Silverado 1500, Suburban, and Tahoe, and GMC Sierra 1500, Yukon, and Yukon XL vehicles with four-wheel (4WD) or all-wheel drive (AWD), and certain 2015-2020 Suburban, Escalade, Escalade ESV, Yukon, Yukon XL, and Tahoe vehicles. A component missing from the drivetrain transfer case may cause the front and/or rear wheels to lock up without warning to the driver.
- Risk
- Front or rear wheel lockup increases the risk of a crash.
- Remedy
- Owners are advised not to drive their vehicle until the remedy is completed. Dealers will inspect and, if necessary, replace the transfer case assembly, free of charge. Owner notification letters were mailed May 18, 2026. Owners may contact GMC customer service at 1‑800‑462‑8782, Chevrolet customer service at 1‑800‑222‑1020 or Cadillac customer service at 1‑800‑333‑4223. GM's number for this recall is N262557620. Vehicle Identification Numbers (VINs) involved in this recall became searchable on on May 7, 2026.
Recall number 26V289000 · Recall details
Equipment: other: owners/service/other manual
- What is wrong
- General Motors has decided that certain 2027 Chevrolet Bolt EV, 2025-2026 Cadillac OPTIQ, Chevrolet Colorado, Equinox EV, GMC Canyon, 2026 Buick Enclave, Envision, Cadillac CT5, Escalade, Escalade ESV, Escalade IQ, Escalade IQL, LYRIQ, VISTIQ, Chevrolet Blazer EV, Corvette Convertible, Corvette Coupe, Corvette Convertible E-Ray, Equinox, Silverado 1500, 2500, 3500, Silverado EV, Suburban 1500, Tahoe, Traverse, GMC Acadia, Hummer EV Pickup, Hummer EV SUV, Sierra 1500, 2500, 3500, Sierra EV, Terrain, Yukon, and Yukon XL vehicles. The radio may not have been set to the correct status to download the electronic owner's manual during production. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, “Occupant Protection.”
- Risk
- Without an owner's manual to consult, owners may not know how to safely use and operate the vehicle, increasing the risk of injury in a crash.
- Remedy
- Dealers will reset the vehicle radio, which will facilitate automatic download of the electronic owner’s manual, free of charge. Owner notification letters were mailed April 16, 2026. Owners may contact GM customer service at 1‑866‑467‑9700, Chevrolet customer service at 1‑800‑222‑1020 or Cadillac customer service at 1‑800‑333‑4223. The manufacturer's number for this recall is N252540430. Vehicle Identification Numbers (VINs) involved in this recall became searchable on on February 26, 2026.
Recall number 26V114000 · Recall details
See all 3 recalls for the 2026 GMC Yukon
Defect investigations
Loss of motive power due to engine failure post recall remedy
On January 16, 2026, the Office of Defects Investigation (ODI) opened Recall Query RQ26001. This investigation was opened to assess the remedy effectiveness of Recall 25V‑274. ODI has received complaints alleging engine failure in vehicles after the recall remedy had been completed, whether that remedy involved an oil viscosity change or a complete engine replacement. General Motors (GM) issued Recall 25V‑274 to address concerns of engine failure in the L87 engines produced between March 1, 2021 and May 31, 2024. GM cited the root cause as a supplier manufacturing and quality issue. GMâs recall remedy for Recall 25V‑274 consisted of two different repairs, either an oil viscosity change or an engine replacement, based on the results of the remedy inspection procedure. ODI continues to receive reports of engine failures after the completion of the recall remedy. To date, ODI has received 499 complaints alleging post-remedy engine failure in vehicles subject to Recall 25V‑274, 473 of which involved an oil viscosity change and 26 a complete engine replacement. Additionally, ODI has received 191 reports of L87 engine failures in engines produced after the production period cited in Recall 25V‑274. GM reported receiving 6,953 complaints of post-remedy engine failure. ODI is opening this Engineering Analysisto continue investigating complaints of post-remedy engine failure. ODI is expanding the scope of this Investigation to include engines produced after the production period cited in the recall. To review the ODI reports cited in the Opening Resume ODI Report Identification Number document, go to
EA26005
Technical service bulletins for the 2026 GMC Yukon 227
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Unknown or other
- Unknown or other
- Beginning with 2026 model year production, the floor console/armrest lamp design was changed by removing...
- If a vehicle has an when attempting to perform a vehicle dynamic sensor learn, the scan tool may display a...
- This PI is to instruct dealer on diagnostic procedures that need to be completed prior to replacing a...
- Unknown or other
- Unknown or other
- Unknown or other
- • Improved power window operation • Improvements to help prevent battery drain • Improved vehicle access...
- This update contains a required software change to help improve the overall software update and...
2026 GMC Yukon fuel economy
Official EPA estimates in miles per gallon (MPGe for electric). Ranges cover trims that share the same engine.
| Engine | Drive | City | Highway | Combined |
|---|---|---|---|---|
| 3.0L 6‑cyl Diesel | RWD | 21 | 26 | 23 |
| 3.0L 6‑cyl Diesel | 4WD | 20 | 24 | 22 |
| 6.2L 8‑cyl | RWD | 15 | 19-20 | 16-17 |
| 5.3L 8‑cyl | RWD | 15 | 20 | 17 |
| 5.3L 8‑cyl | 4WD | 14-15 | 19 | 16-17 |
| 6.2L 8‑cyl | 4WD | 14 | 18 | 16 |
What 2026 GMC Yukon owners say
Most recent owner complaints, unedited.
Dealer performed oil change on 10/14/26 @ 11521 miles. We stated at time of oil change that we were experiencing shuttering at 1200-1500 rpm' and was hearing knocking sounds from engine. Advisor stated that they will change oil and test drive vehicle and check for codes. It is noted on diagnostic report that oil was changed, test drove vehicle 5 miles and all ok at this time. Vehicle was released back to us to drive without any further investigation to the symptoms that we noticed. Advisor requested that we make an appointment with the transmission division. Appt. made with transmission group for 10/26/26. On 10/25/26 Engine light came on. At the 10/26/26 appt., code P0016 was noted @ 11862 miles and we were called to say that we needed a new engine. Advisor also stated verbally that there were metal shards in the oil. Dealer offered good will assistance and denied the powertrain warranty based on Owner Neglect. Spoke to GM assistance and they are still denying warranty replacement of said engine. General Manager stated that we should request an engine tear down.
Car with $13000 miles had sudden engine failure. Have heard numerous other new Yukons have had this issue.
Has 3600 miles and engine suddenly lost power and had back knocking/squealing noise and check engine light started flashing.
Engine Failure. While driving on the highway at a speed of approximately 70 mph the engine made a noise and the vehicle lost power. The safety factor is that i was on the highway with trucks and busses in which i had to coast the vehicle to the shoulder of the road and call for police assistance. No warning lamps. Vehicle was towed and inspected by the dealer in which i was informed that the engine bearings had locked up. The vehicle needed a new engine.
I am writing to formally report what I believe is a design flaw in my new GMC Denali involving the center console lid. The lid does not have a stopper, dampening mechanism, or other means of holding it securely in the open position. When I lift the lid to reach for an item inside the console, it can fall closed unexpectedly and slam down on my hand. This creates an avoidable risk of injury during ordinary use of the vehicle. Accessing a center console storage compartment is a routine activity, and the lid should not unexpectedly close on the user’s hand. I am concerned that this design may affect other owners of the same vehicle model. I believe the issue warrants review by GMC’s product engineering and vehicle safety teams
My 2026 GMC Yukon Denali Ultimate has had the vadar chrome peel in the first 7000 miles. After that a wiring pinch made the 4 wheel drive unusable during the winter months that I needed it to get into my driveway During summer months the infotainment center completely failed to a black screen and since does not function having the dealership tell me that it will need to be replaced. The 6.2 motor started ticking at 25000 miles, I took it to the dealership yesterday 10/14, the dealership is keeping the vehicle for an estimated 6 weeks to tear the motor apart. The motor is making the noise where it is reported to shut down at high speeds had I not got it in when I did. The vehicle has had no warning to indicate problems.
Was operating Yukon on st route 5 doing 55mph when the Yukons engine blew up and the vehicle shut down on me in the middle of the road.
While traveling on a state route in Pennsylvania the engine unexpectedly locked up. This was confirmed by the dealer once it was towed to their lot and they were able to inspect it. To date, a replacement engine has not been able to be located yet, its been four weeks and no updates have been received.
This engine failed while I was driving. You need to speed up the process and make GM know that their 6.2 engines are failing still to this day . People can get in accidents due to this happening. GM needs to be held accountable for their mistakes. I was lucky my vehicle engine failed near my home and not on the interstate. Please get to the bottom of this . There is no reason that these engines are failing in 2026.
Compare the 2026 GMC Yukon
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Other model years
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Questions about the 2026 GMC Yukon
Is the 2026 GMC Yukon reliable?
Owners have filed 49 complaints about the 2026 GMC Yukon, fewer than a typical Yukon model year.
What is the most common problem with the 2026 GMC Yukon?
Engine and cooling, with 38 complaints. Next is transmission (12).
How many recalls does the 2026 GMC Yukon have?
3 recalls, covering wheels, power train and equipment.
What year does the GMC Yukon have bad engine?
The GMC Yukon model years with the most engine complaints are 2021 (221 complaints), 2023 (174 complaints) and 2022 (124 complaints).
What gas mileage does the 2026 GMC Yukon get?
Official estimates for the 2026 GMC Yukon range from 16 to 23 mpg combined. The most efficient version (3.0L 6-cyl diesel, RWD) gets 21 city and 26 highway.
VIN decoder
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