2021 GMC Yukon XL problems
The 2021 GMC Yukon XL has 198 NHTSA owner complaints and no active recalls. Here's where owners say it breaks.
The 2021 GMC Yukon XL has 198 NHTSA owner complaints on file (U.S. federal records, as of July 2026). The most-reported system is engine at 99 complaints, typically surfacing around 76,623 miles (~$3,100 to repair). Source: NHTSA Office of Defects Investigation.
| Model year | Owner complaints | Recalls |
|---|---|---|
| 2018 Yukon XL | 0 | 0 |
| 2019 Yukon XL | 0 | 0 |
| 2020 Yukon XL | 44 | 0 |
| 2021 Yukon XL (this page) | 198 | 0 |
| 2022 Yukon XL | 149 | 0 |
| 2023 Yukon XL | 184 | 0 |
| 2024 Yukon XL | 0 | 0 |
Solid reliability overall. Common issues are concentrated in a few systems.
Worth owning if you verify the specific issues below before you buy.
- Reliability score 7.4/10 — around the segment average
Our read of the federal NHTSA complaint and recall record for this exact year and model — not a substitute for a pre-purchase inspection. How we score.
Buying a used 2021 GMC Yukon XL? Check these first
Here's what this model is known to do — so you can inspect for it, price it in, or make the seller fix it before you sign.
What to inspect on this specific car
- engine — 99 owner reports · tends to show around 76,623 mi · ~$3,100 to fix
- powertrain — 40 owner reports · tends to show around 78,401 mi · ~$2,500 to fix
- electrical — 10 owner reports · tends to show around 55,000 mi · ~$850 to fix
- suspension — 5 owner reports · tends to show around 2,050 mi · ~$900 to fix
⚠ The one to take seriously: electrical is flagged severe on this model , showing up around 55,000 mi. Inspect it closely on a test drive.
Recalls to confirm are done
Run the VIN from the listing — no active recalls on this model right now, but confirm none were opened after this car was built.
Verdict for buyers: 7.4/10 model. The priciest documented failure is engine (~$3,100) — get the seller's service records for it or inspect closely. Otherwise an average-risk used buy at a fair price.
We tell you what this model is known for and what to inspect — a vehicle-history report tells you what this exact car has been through. Smart buyers get both.
See the full pre-purchase inspection checklist →Ask anything about your 2021 GMC Yukon XL
A noise, a warning light, a repair quote, "should I buy this?" — get an answer grounded in this vehicle's actual NHTSA record, not generic advice.
Answers use this vehicle's NHTSA complaint & recall record — owner-reported and unverified, not a diagnosis. Verify anything safety-critical with a mechanic.
Top trouble spots 8 categories with 3+ complaints
What owners are saying recent NHTSA-filed complaints · verbatim
12/16/25 (evening): Warnings began cycling across the screen: 1) Service ESC, 2) Vehicle Leveling for Stability, 3) Rear Axel System Off, 4) Engine symbol began flashing, and 5) Service Traction Control. I felt vibration/bouncing while driving as well. 12/17/25 9 AM: Took 2021…
While driving on a two lane road, my vehicle put itself into Neutral without me doing anything and the engine stopped. All things powered down. The engine stopped. not propulsion, nothing. I tried to pull over to edge of road. Car would not start - no activity. The vehicle…
Lifter failure with cylinder #6. Car violently shook prior to this failure. No engine lights or messages until the next day when tried to drive. Ended up towing car to dealer. Car had 76k miles on it. Recall on 6.2L, but not on the 5.3L which is not immune to this same issue as…
On December 1, 2025 at around 5pm CST, my 2021 GMC Yukon XL started making a squeeling noise then stopped while driving down the road. It left me stranded in the middle of the road. A P0016 CODE was produced and the engine light came on. I had the vehicle towed the next day to…
Estimate your repair exposure
Drag to your current mileage. Numbers are derived from this vehicle's complaint history.
Under investigation 2 open at NHTSA
NHTSA has an open defect investigation covering this vehicle — the step that can precede a recall, not a finding of fault. RQ26001 on NHTSA →
NHTSA has an open defect investigation covering this vehicle — the step that can precede a recall, not a finding of fault. EA25007 on NHTSA →
How NHTSA investigations work, and what's open now →
Common questions
Is the 2021 GMC Yukon XL reliable?
Mostly yes. With a reliability score of 7.4 out of 10 based on 198 owner complaints filed with NHTSA, the 2021 GMC Yukon XL is generally a sound vehicle. The areas to watch are listed in the top problem section above — most are budget items, not deal-breakers.
Should you avoid the 2021 GMC Yukon XL?
The 2021 GMC Yukon XL is acceptable, with specific caveats. Worth owning if you verify the specific issues below before you buy. The record behind that call: Reliability score 7.4/10 — around the segment average. This is our read of the federal complaint and recall data — not a substitute for a pre-purchase inspection.
What should I check before buying a used 2021 GMC Yukon XL?
Inspect the engine first — it's the most-reported issue on this model, with 99 owner complaints filed. Typical failure occurs around 76,623 miles. Average repair cost runs about $3,100 at an independent shop. Also confirm any open recalls have been completed by running the VIN, and ask for service records covering the problem areas listed above.
Is the 2021 GMC Yukon XL a good used car to buy?
It scores 7.4 out of 10 on our NHTSA-based read of 198 owner complaints. The main thing to watch is engine. Typical failure occurs around 76,623 miles. Priced fairly and clean on inspection, it's a reasonable used buy. Our data covers what this model is known for — pair it with a vehicle-history report on the VIN to see what that specific car has been through.
What's the most common problem on the 2021 GMC Yukon XL?
Based on NHTSA records, the most-reported issue is engine, with 99 complaints filed. Typical failure occurs around 76,623 miles. Average repair cost runs about $3,100 at an independent shop.
What's the most expensive thing that goes wrong?
The engine is one of the costlier repair items. Average repair cost runs about $3,100 at an independent shop. Typical failure occurs around 76,623 miles. Catching early warning signs can sometimes extend life by 20–30,000 miles.
How do I check if my GMC Yukon XL has open recalls?
Paste your VIN into the decoder at the top of this page. We pull live from NHTSA, so you'll see exactly which campaigns apply to your vehicle and whether the dealer has logged the fix. Recall repairs are always free regardless of mileage or warranty status.
Is an extended warranty worth it on a 2021 GMC Yukon XL?
Math is straightforward: a quality service contract runs $1,800–3,500 over 3 years. With 198 complaints on file and the costliest repair averaging $3,100, one major failure more than pays for it. The catch is reading the contract — many providers exclude wear items and require pre-authorization, so cheaper plans are not always better value.