2021 Gmc Yukon Xl Problems
Shopping for a used 2021 Gmc Yukon Xl? This page highlights owner-reported complaint patterns and recall history so you can inspect the right systems before buying. Based on 179 real NHTSA owner complaints, with Engine Problems the most reported area.
Before you buy
This 2021 Gmc Yukon Xl has 179 NHTSA complaints — top issue: Engine Problems.
A model-year pattern isn't the car in front of you. Check this exact VIN for accidents, open recalls, odometer rollback, and salvage titles.
Free preview · Full report from $12.95.
2021 Gmc Yukon Xl Fuel Economy
✓ EPA Official DataEPA-rated fuel economy across 8 2021 Gmc Yukon Xl trim configurations. The median figure is shown; range reflects all available trims.
Source: EPA FuelEconomy.gov. Figures reflect EPA lab testing; real-world results vary by driving style, load, and conditions. 8 trims analysed.
2021 Gmc Yukon Xl Safety Ratings
NHTSA 5-Star Program2 variants tested — showing 2021 GMC Yukon XL SUV 4WDOfficial crash test results from the NHTSA 5-Star Safety Ratings program. Stars reflect government-conducted tests; higher is safer.
Overall
21.9% rollover risk
Frontal Crash
Side Crash
Rollover
21.9% probability
Source: NHTSA 5-Star Safety Ratings. Ratings are based on government crash tests and may not reflect all trim levels.
Based on NHTSA complaint data, the 2021 Gmc Yukon Xl has 179 owner complaints, 2 crash-related complaints, and 12 recall campaigns on record. The most frequently reported component is Engine Problems. NHTSA reliability signal: Minor Issues.
- Make
- Gmc
- Model
- Yukon Xl
- Model year
- 2021
- NHTSA owner complaints
- 179
- Crash-related complaints
- 2
- Safety recall campaigns
- 12
- Top reported component
- Engine Problems
- Reliability signal
- Minor Issues
- EPA MPG combined
- 17
- EPA MPG city / highway
- 15 / 19
- Fuel type
- Regular Gasoline
- NHTSA overall safety rating
- 4/5 stars
- NHTSA frontal crash rating
- 4/5 stars
- NHTSA side crash rating
- 5/5 stars
- NHTSA rollover rating
- 3/5 stars
- Electronic stability control
- Standard
Common problems
Most common 2021 Gmc Yukon Xl problems
Top owner-reported complaint areas and where they often appear.
Engine Problems
Transmission / Drivetrain
Fuel/Propulsion System
Complaint patterns center on Engine Problems, Transmission / Drivetrain, Fuel/Propulsion System. Use these as a pre-purchase inspection guide, then verify recall and damage history on the specific VIN.
Buyer verdict
Should you buy a used 2021 Gmc Yukon Xl?
The 2021 Gmc Yukon Xl looks comparatively lower-risk based on complaint volume, but model-year averages do not confirm the condition of any specific used car.
Use the model-year trend to shortlist candidates, then confirm the exact vehicle condition with service records, recall status, and a VIN history report.
Pre-purchase
What to check before buying a used 2021 Gmc Yukon Xl
Inspection Focus
- Inspect the engine for reported issues, such as unusual noises or performance problems.
- Verify all open recalls at nhtsa.gov/recalls.
- Request service records for transmission and fuel system repairs.
- Have a mechanic inspect the vehicle before purchase, focusing on reported components.
Before You Close the Deal
- Inspect the engine for reported issues, such as unusual noises or performance problems.
- Verify all open recalls at nhtsa.gov/recalls.
- Request service records for transmission and fuel system repairs.
- Have a mechanic inspect the vehicle before purchase, focusing on reported components.
Check the exact car
Shortlist with model-year data. Decide with the exact VIN.
Before buying a used 2021 Gmc Yukon Xl, run a VIN history report to verify accidents, title brands, odometer records, theft checks, and open recalls for the exact vehicle.
AI verdict
What the complaint data suggests
Editorial interpretation of NHTSA public complaint data. Source: nhtsa.gov. Complaints are owner-submitted and do not confirm a defect. Methodology
Based on 179 NHTSA complaints for the 2021 GMC Yukon XL, the data suggests that engine problems are the most frequently reported issue, followed by transmission/drivetrain and fuel/propulsion system concerns. However, with low confidence and only one model year analyzed, these patterns should be interpreted cautiously.
- Engine problems account for the majority of complaints among the 2021 model year.
- Transmission/drivetrain issues are the second most reported component.
- Fuel/propulsion system complaints are the third most common.
- Crash-related complaints are rare, with only 2 reported.
- Engine Problems
- Transmission / Drivetrain
- Fuel/Propulsion System
Full breakdown
All 2021 Gmc Yukon Xl complaints by category
Every owner-reported complaint category filed with NHTSA for the 2021 Gmc Yukon Xl. Use this as a pre-purchase inspection checklist.
| Component | Complaints | Crashes | Fires | Avg Mileage | Volume |
|---|---|---|---|---|---|
| Engine Problems | 123 | — | — | — | |
| Transmission / Drivetrain | 40 | — | — | — | |
| Fuel/Propulsion System | 19 | — | — | — | |
| Electrical Faults | 10 | — | 1 | — | |
| Forward Collision Avoidance: AEB | 6 | — | — | — | |
| Brake System | 6 | — | — | — | |
| Suspension Failures | 5 | — | — | — | |
| Uncategorized Issues | 5 | — | — | — | |
| Unintended Acceleration | 5 | — | — | — | |
| Steering Defects | 4 | — | — | — | |
| Airbag Malfunctions | 4 | 1 | — | — | |
| Visibility/Wiper | 4 | — | 1 | — | |
| Fuel System | 3 | — | — | — | |
| Gasoline | 3 | — | — | — | |
| Wheel Issues | 2 | 1 | — | — | |
| Visibility | 2 | — | — | — | |
| Structural Problems | 2 | — | — | — | |
| Lane Departure | 2 | — | — | — | |
| Chest Clip | 1 | — | — | — | |
| Buckle | 1 | — | — | — | |
| Harness | 1 | — | — | — | |
| Seat Belt Issues | 1 | — | — | — | |
| Headlight/Taillight Failures | 1 | — | — | — | |
| Back Over Prevention | 1 | — | — | — |
Source: NHTSA Complaints Database. Complaint counts may exceed total complaints because one report can span multiple categories.
In their words
Real owner complaints
Read what owners actually reported to NHTSA for the 2021 Gmc Yukon Xl. Type a keyword (e.g. “transmission”, “stalling”, “brakes”) to filter.
On April 20th, 2025 while accelerating from a stop light, my vehicle (2021 GMC Yukon Denali XL, 6.2L V8) started making a ticking noise and the service engine light started flashing. I was within a few minutes of my house and limped my vehicle home. The next morning, I started i…
The vehicle experienced a major engine failure involving the 6.2L engine. The failure appeared sudden and premature and is not consistent with normal wear and tear for a vehicle of this type. Prior to the failure, there were intermittent performance concerns and warning indicato…
I previously opened NHTSA Complaint Number11637208 on January 20, 2025 regarding the internal engine failure of my 2021 Yukon Denial XL on January 3, 2025. After filing that Complaint, the engine in my Yukon was replaced by GMC in February 2025. After replacement, the engine wa…
March 29th 2026 my 2021 Yukon XL engine stalled while driving at 45mph (No prior warning lamps or messages, restart engine came on dash) causing me to immediately pull over and come to a stop still in traffic, it shifted my vehicle into park, I was in an in an un-safe spot and w…
The contact owns a 2021 GMC Yukon XL. The contact stated that while driving approximately 55 MPH, the vehicle decelerated unintentionally and failed to accelerate above 35 MPH. The vehicle failed to respond when the accelerator pedal was depressed. The contact arrived at the resi…
The contact owns a 2021 GMC Yukon XL. The contact stated that while accelerating approximately 35 - 40 MPH from a stoplight, the contact believed that the engine was going to seize. The message Low Power Mode was displayed on the instrument panel, and the vehicle went into LIMP M…
The contact owns a 2021 GMC Yukon XL. The contact stated that while driving approximately 70 MPH, the vehicle started shuddering and was losing automotive power. There was no warning light illuminated. The vehicle was taken to an independent mechanic to be diagnosed, and it was d…
I was driving my yukon xl with my family and as I was coming to a stop at a stop light my Yukon started to shake violently and make a pinging noise. The check engine light came on and as I drove the car smoke started to come out the exhaust. Luckily I was not on the highway as th…
The contact owns a 2021 GMC Yukon XL. The contact stated that while driving approximately 50 MPH and merging onto the freeway, the check engine warning started flashing and the vehicle started losing automotive power. The vehicle was driven back to the residence. After stopping t…
I have 60k miles on my 2021 yukon xl denali. the transmission went out in it in January. i have it in the shop in january for a new transmission. i got it back and the transmssion went out again in it. its currently in the shop. the transmission is a 10 speed and has been nothing…
2021 Yukon Denali 6.2L V8, 137k miles- engine failure—driving down road 55mph and engine light came on, along with check esc and check traction warnings, vehicle began to rough idle and shake, motor knocking. Personally feel this is related to recall but my vin not included says …
engine failure from the connecting rod and/or crankshaft. There is a current recall for this and my vehicle should be a part of it. I broke down on the side of a highway and had the vehicle towed to GMC dealership. There are now warning lights on with code P0016 and P0324
Vehicle could not detect key fob, key fob had normal operation(lock, unlock, remote start, tailgate open and close, all functional) but unable to start vehicle or power vehicle accessories. Windows opened with key fob and could not close windows, could not put vehicle in neutral,…
Driver side mirror starts moving on its own without any physical buttons being pressed. Accident notification system has failed and has produced a CEL
Vehicle was on highway when alerts started going off and a weird noise started. It scared the occupants as they were going 70mph on the highway when it happened. Luckily they were able to maneuver off the road in time and parked at a convenient store. Towed vehicle to dealersh…
Lifter failure, resulting in costly repairs and possible catastrophic engine failure while driving. Vehicle has 78,000 miles and has been regularly serviced.
Phantom braking when moving forward after a stop. Dealer can’t replicate or diagnose it, therefore won’t repair it under warranty. It’s happened 6 times now and almost caused 3 accidents.
The contact owns a 2021 GMC Yukon XL. The contact stated that while his wife was driving approximately 30 MPH, the vehicle started to lose motive power with the message "Service Transmission Now" displayed. The driver was unable to shift the vehicle into reverse(R) and turned aro…
I experienced complete engine failure at around 76000 miles similar to a current engine recall for 2021 to 2024 6.2L V8 engines. However, my engine isn't included in the current recall. I also experienced the fuel pump control module problem requiring replacement. Again there…
On August 21, 2025, my vehicle engine died in Connecticut when I was taking my son back to college. I had to have it towed back to South Jersey, where I live. The dealer informed me that my engine failed due to a major recall. I was without my vehicle for three months while they …
Source: NHTSA Complaints Database. Real owner reports for the 2021 Gmc Yukon Xl.
Safety recalls
2021 Gmc Yukon Xl recalls
12 campaignsNHTSA recall campaigns for the 2021 Gmc Yukon Xl. 12 recall campaigns are on record for this model year. Recalls are free to fix at authorized dealers, but completion status must be verified on the exact VIN.
STEERING:STEERING CONTROL MODULE
POWER TRAIN:DRIVELINE:DRIVESHAFT
SEAT BELTS
SEAT BELTS
SEATS
FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP:CONTROL/DRIVE MODULE
AIR BAGS:SRS MALFUNCTION WARNING LAMP/LIGHT
SEAT BELTS
SEAT BELTS:CRITICAL FASTENERS
EXTERIOR LIGHTING:LIGHTING CONTROL MODULE:SOFTWARE
POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE
ENGINE AND ENGINE COOLING:ENGINE:HARD PARTS INTERNAL/MECHANICAL
Research more
Keep researching before you buy
Compare brands and categories, then check the exact car's history by VIN.
Questions
2021 Gmc Yukon Xl buying FAQ
Buyer-focused answers based on real NHTSA complaint and recall data for this model year.
Is the 2021 Gmc Yukon Xl reliable?▾
Minor Issues. NHTSA currently shows 179 owner complaints, 2 crash-related complaints, and 12 recall campaigns for this model year. The 2021 Gmc Yukon Xl looks comparatively lower-risk based on complaint volume, but model-year averages do not confirm the condition of any specific used car. Treat this as a model-year signal, then verify the exact vehicle's condition and history before purchase.
What are the most common problems with the 2021 Gmc Yukon Xl?▾
#1: Engine Problems (123 complaints). #2: Transmission / Drivetrain (40 complaints). #3: Fuel/Propulsion System (19 complaints)
At what mileage do problems start on the 2021 Gmc Yukon Xl?▾
Mileage data is not available or insufficient for this model year.
How safe is the 2021 Gmc Yukon Xl?▾
Complaint data is not the same as crash-test scoring, but it does highlight possible risk patterns. For the 2021 Gmc Yukon Xl, NHTSA complaints include 2 crash-related reports and 1 fire reports out of 179 total complaints. 5 injury reports are also on file. For controlled crash-test ratings, check nhtsa.gov/ratings.
Does the 2021 Gmc Yukon Xl have any recalls?▾
Yes. 12 NHTSA recall campaigns affect the 2021 Gmc Yukon Xl. A major recall area is STEERING:STEERING CONTROL MODULE. 12 recall campaigns are on record for this model year. Always verify open recalls by VIN because completion status varies by vehicle.
Should I buy a 2021 Gmc Yukon Xl?▾
The 2021 Gmc Yukon Xl looks comparatively lower-risk based on complaint volume, but model-year averages do not confirm the condition of any specific used car. Use the model-year trend to shortlist candidates, then confirm the exact vehicle condition with service records, recall status, and a VIN history report. Pay extra attention to Engine Problems during inspection. Before committing, run a VIN history report to verify accidents, title brands, odometer records, and recall completion for the exact car.
Source: NHTSA (National Highway Traffic Safety Administration) complaint and recall databases, aggregated by VinSpector AI.
Wider context: See the full Gmc Yukon Xl reliability report with year-by-year comparison.
Owner Reliability Rating
Rate the 2021 Gmc Yukon Xl based on your ownership experience.
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Ratings are based on owner experience and are separate from NHTSA data shown above.
Before you buy
Check the exact vehicle history before you buy
Model-year complaints and recalls reveal patterns. A VIN report confirms whether the exact car has accident history, title brands, mileage issues, or open recalls.