2020 GMC YUKON Problems
Real NHTSA owner complaints for the 2020 Gmc Yukon. This model year has 27 NHTSA complaints — top issue: Transmission / Drivetrain.
Model-Year Complaints
27 owner reports
Recall Campaigns
3 NHTSA campaigns
Top Failure Area
Transmission / Drivetrain
Worst 2020 Gmc Yukon Problems
Top 3 most-reported issues with average mileage at failure.
Transmission / Drivetrain
Engine Problems
Brake System
AI Interpretation — 2020 Gmc Yukon
Low ConfidenceComplaints for the 2020 GMC Yukon are concentrated in the transmission/drivetrain and engine, each with 10 reports. No crash-related complaints were filed, but the low confidence level suggests caution in interpretation.
- Transmission/drivetrain and engine each account for 10 out of 27 total complaints.
- Brake system complaints are relatively low at 2 reports.
- No crash-related complaints were recorded for the 2020 model year.
- Transmission / Drivetrain issues are the most frequently reported component.
- Engine Problems are equally prominent with 10 complaints.
- Brake System concerns appear less common but still present.
- Inspect transmission/drivetrain for any signs of issues or previous repairs.
- Verify all open recalls at nhtsa.gov/recalls.
- Request service records for engine and transmission work.
- Have a mechanic inspect the vehicle before purchase.
Considering a 2020 Gmc Yukon?
This page shows the model year's reputation. The VIN tells you about this specific car — accidents, title issues, odometer fraud. Full report just $12.95 (vs. Carfax $39.99).
All Problems by Category
Every NHTSA complaint category for the 2020 Gmc Yukon. A single complaint may appear in multiple categories.
| Component | Complaints | Crashes | Fires | Avg Mileage | Volume |
|---|---|---|---|---|---|
| Transmission / Drivetrain | 10 | — | — | — | |
| Engine Problems | 10 | — | — | — | |
| Brake System | 2 | — | — | — | |
| Uncategorized Issues | 2 | — | — | — | |
| Forward Collision Avoidance: AEB | 1 | — | — | — | |
| Fuel System | 1 | — | — | — | |
| Gasoline | 1 | — | — | — | |
| Electrical Faults | 1 | — | — | — | |
| Fuel/Propulsion System | 1 | — | — | — | |
| Tire Issues | 1 | — | — | — | |
| Back Over Prevention | 1 | — | — | — | |
| Seat Belt Issues | 1 | — | — | — | |
| Electronic Stability Control (Esc) | 1 | — | — | — |
Source: NHTSA Complaints Database. Complaint counts may exceed total complaints because one report can span multiple categories.
Search Owner Complaints
Read what owners actually reported to NHTSA for the 2020 Gmc Yukon. Type a keyword (e.g. “transmission”, “stalling”, “brakes”) to filter.
The 2020 Yukon started to have serious loss of speed and decelerating issue when the vehicle would slow down and down shift to a lower gear. The issue with this is that once it downshifted it woul not engage in a gear again and leave me stranded on the road. I had to turn off th…
TRANSMISSIONS ISSUES. Not transitioning/ shifting into gears smoothly or at all. When it does transition/shift it is rough and harsh. When my car transitions to a lower gear then it will not transition back up to a higher gear causing my vehicle to drop speed significantly tha…
I had an incident in my 2020 GMC Yukon, where the forward collision crash alert went off and there was total loss of brakes. The brake pedal went to the floor. After the crash alert ended, the brakes returned. This happened on the highway and could have turned into a disastrous e…
MISFIRE ON #6 CYLINDER. DIAGNOSIS REVEALED THE INTAKE VALVE IS NOT OPENING DUE TO COLLAPSED VALVE LIFTER. No message prior to engine light coming on and car shaking after driving back from the store (speed less than 45 MPH).
I purchased my 2020 Yukon Denali on July 8, 2024 from Classic Buick GMC in Painesville, Ohio. The check engine light started going on and off a few months after purchasing the vehicle. When I called a mechanic he stated that I should wait until the light is on and then bring i…
Transmission started slipping a little and then literally stopped working all with in an hour. And was doa in the parking lot.
The contact owns a 2020 GMC Yukon. The contact stated that while driving at an undisclosed speed, the check engine warning light was illuminated. The vehicle was taken to the residence, the contact exited the vehicle and discovered white smoke coming from the exhaust and started …
I purchased a new 2020 GMC Yukon in May of 2020. Between May 2020 and November 2025 the vehicle was routinely serviced on or before the due date recommend by the manufacturer. I had not experienced issues with the vehicle until November 2020 when the check engine light abruptly a…
total engine failure with 90,000 miles on the car.
We purchased the vehicle used in April 2025 with 79,851 miles. All service records were documented via Carfax. Vehicle was in impeccable condition. We drove it for approx. 8,000 miles until July 10, 2025, when a loud knocking sound started coming from the engine - approx. mileage…
My vehicle went from driving perfectly to startling and not going pass 45 in a matter of two days. I was getting all maintenance done at dealer always on time had just service it. When all of a sudden it started making a jerking/ skipping feel as if I was accelerating too hard. …
While driving to Lake Placid, NY, I experienced sudden loss of propulsion as I was driving approximately 60 mph. I was able to brake and pull over to the shoulder. I was not able to restart the vehicle - engine was dead. We were flat bed towed to a garage in Lake Placid where it …
The contact owns a 2020 GMC Yukon. The contact stated that while driving at an undisclosed speed, the vehicle inadvertently lost motive power, prompting the contact to pull over to the shoulder of the roadway. The contact became aware that the vehicle continued to move forward wh…
The contact's wife owns a 2020 GMC Yukon. The contact stated the vehicle was taken to an independent mechanic for a tune up. The contact stated that upon picking up the vehicle and driving, the transmission was slipping in and out of gear. Additionally, the contact stated while a…
Hello, I’m calling about the GM transmission recall recently announced in March 2025 affecting 2020 Yukon vehicles. My Yukon experienced what I believe is the exact same issue described in the recall. Our vehicle lost forward gears and almost caused a crash. A certified mechanic…
Vehicle started jumping and switched into 4WD while reversing. There was no inclement weather or slipping to prompt this. Service 4WD warning had been showing intermittently for a week or two and service appointment had been scheduled. At service appointment, confirmed that 4WD s…
6L80 transmission complete failure while driving. Vehicle started shacking then check engine light came on .
The contact owns a 2020 GMC Yukon. The contact stated that while refueling the vehicle, the fuel filler neck was not allowing fuel to flow into the tank. There were no warning lights illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the fuel filler ne…
Shortly after the warranty expired my torque converter went out and damaged the transmission. After speaking with several transmission shops this is a known problem with this vehicle! The torque converter and transmission are poorly made, and no matter if you get all of your se…
2020 GMC Yukon transmission failed at 103.000 miles
Source: NHTSA Complaints Database. Real owner reports for the 2020 Gmc Yukon.
Recalls for 2020 Gmc Yukon
3 campaignsNHTSA recall campaigns for the 2020 Gmc Yukon. Recalls are free to fix at any authorized dealer. Run a VIN check below to see if your specific vehicle has open recalls.
2020 Gmc Yukon — FAQ
Answers based on real NHTSA complaint and recall data for this specific model year.
Is the 2020 Gmc Yukon reliable?▾
Good Record. The 2020 Gmc Yukon has 27 NHTSA owner complaints, 0 crash-related, and 3 recall campaigns. The most reported issue is Transmission / Drivetrain (10 complaints). Source: NHTSA via VinSpector AI.
What are the most common problems with the 2020 Gmc Yukon?▾
#1: Transmission / Drivetrain (10 complaints). #2: Engine Problems (10 complaints). #3: Brake System (2 complaints)
At what mileage do problems start on the 2020 Gmc Yukon?▾
Mileage data is not available or insufficient for this model year.
How safe is the 2020 Gmc Yukon?▾
The 2020 Gmc Yukon has 0 crash-related complaints and 0 fire reports out of 27 total NHTSA complaints. For NCAP lab crash test star ratings, visit nhtsa.gov/ratings.
Does the 2020 Gmc Yukon have any recalls?▾
Yes — 3 NHTSA recall campaigns affect the 2020 Gmc Yukon. The largest issue: TIRES. Check nhtsa.gov/recalls or run a VIN check to see if your specific vehicle has open recalls.
Should I buy a 2020 Gmc Yukon?▾
The 2020 Gmc Yukon has a relatively low complaint rate. Pay particular attention to Transmission / Drivetrain issues. Always run a VIN check on the specific car you're considering to check for accident history, open recalls, and title brands.
Source: NHTSA (National Highway Traffic Safety Administration) complaint and recall databases, aggregated by VinSpector AI.
Wider context: See the full Gmc Yukon reliability report with year-by-year comparison.
See It Before You Buy
Explore a Full AI Report — Free Demo
Not ready to buy yet? Browse a complete sample report with accident history, title brands, odometer analysis, open recalls, and AI risk scoring — no account needed.
Check Your Specific 2020 Gmc Yukon
Real owner complaints tell you about the model. The VIN tells you about your specific car — accidents, title issues, odometer fraud. Full report just $12.95 (vs. Carfax $39.99).