2021 GMC Yukon XL Engine Problems

Source: NHTSA · Updated Sep 30, 2026 · 138 complaints analyzed

Owners have filed 138 complaints with NHTSA about engine problems on the 2021 GMC Yukon XL, 61% of all complaints for this model year. Half of the reports with a mileage happened before 70,500 miles. The words owners use most often: “engine failed” (12% of reports).

What owners describe

Phrases that appear unusually often in these complaints compared with complaints about other cars.

  • Engine failed: mentioned in 17 of 138 complaints (12%)
  • Oil consumption: mentioned in 8 of 138 complaints (6%)

How much does it cost to fix?

Owners who wrote down what they paid or were quoted put the typical engine repair on the 2021 GMC Yukon XL at $5,600, and half of them between $5,150 and $11,300.

Based on 5 NHTSA complaints about this problem alone that state a repair bill or quote (2025–2026), converted to 2026 dollars with the U.S. consumer price index. These are owners' own figures, not a quote: they include dealer quotes, and owners who file complaints often faced larger repairs, so they can run higher than typical shop prices. Prices vary by shop, region and warranty coverage. How we calculate this.

At what mileage do engine problems happen?

Based on 14 complaints that reported the odometer reading.

Under 10k miles1 · 7%
10k–25k miles1 · 7%
25k–50k miles1 · 7%
50k–75k miles4 · 29%
75k–100k miles4 · 29%
100k–150k miles3 · 21%
150k+ miles0 · 0%

How serious are the reports?

None of the 138 complaints report a crash, fire or injury.

GMC Yukon XL engine complaints by model year

Peak: 2023, with 148 complaints
2000: 120002002: 22003: 120032004: 22005: 720052006: 22007: 1020072008: 32009: 320092010: 32011: 320112012: 22013: 120132015: 262016: 2620162017: 262018: 1520182019: 342020: 2420202021: 1382022: 11220222023: 1481482024: 5320242025: 172026: 242026

n = 683 complaints · Source: NHTSA

Model yearEngine complaintsShare of that yearMedian miles
2026 Yukon XL2465%3,500
2025 Yukon XL1761%24,842
2024 Yukon XL5375%32,000
2023 Yukon XL14867%44,000
2022 Yukon XL11265%55,000
2021 Yukon XL13861%70,500
2020 Yukon XL2451%52,000
2019 Yukon XL3450%100,000
2018 Yukon XL1528%70,000
2017 Yukon XL2618%55,000
2016 Yukon XL2613%75,175
2015 Yukon XL268%98,000
2013 Yukon XL15%150,000
2012 Yukon XL215%108,800
2011 Yukon XL36%—
2010 Yukon XL311%119,538
2009 Yukon XL313%136,000
2008 Yukon XL34%117,000
2007 Yukon XL1010%112,016
2006 Yukon XL212%100,000
2005 Yukon XL717%128,000
2004 Yukon XL22%182,000
2003 Yukon XL11%54,000
2002 Yukon XL22%128,850
2000 Yukon XL11%180,000

When owners reported it

Peak: 2025, with 74 complaints
2020: 1202012021: 2202122022: 4202242023: 2202322024: 3202432025: 742025742026: 52202652

n = 138 complaints · Source: NHTSA

Related recalls (1)

Engine and engine cooling:engine:hard parts internal/mechanicalApr 24, 2025 · NHTSA campaign 25V274000 · 597,571 vehicles

Problem: General Motors LLC (GM) is recalling certain 2021-2024 Cadillac Escalade and Escalade ESV, Chevrolet Silverado 1500, Suburban, and Tahoe, GMC Sierra 1500, Yukon, and Yukon XL vehicles equipped with a 6.2L V8 gas engine. The connecting rod and/or crankshaft engine components may have manufacturing defects that can lead to engine damage and engine failure.

Risk: Engine failure increases the risk of a crash.

Fix: Dealers will inspect the engine, and as necessary, repair or replace the engine. For vehicles that pass inspection, dealers will add higher viscosity oil, install 6 oil fill cap, replace the oil filter, and update the owner's manual. Repairs will be performed free of charge. Owner notification letters were mailed June 18, 2025. Owners may contact Cadillac customer service at 1-800-333-4223, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is N252494000.

What owners report

Short excerpts of recent complaints, with personal details removed. Full reports are on NHTSA.gov.

The vehicle is consuming every bit of oil at about 1500 to 1800 miles of the 3000 mile guidelines before the next oil change. No leaks. No smoke. No knocking in motor.

Received Sep 29, 2026 · NHTSA complaint 11767641

Engine coolant control valve has failed three times. This last time so severely the car forced me to come to a complete stop in the middle of a busy street. Dangerous to drive while severe reduced acceleration is all that’s available during the episodes.

Received Sep 19, 2026 · NHTSA complaint 11765500

Vehicle has been consuming engine oil at a rate of approximately 1 quart per 500 miles. On XXX, owner added 1 quart of oil in [XXX], then drove a round trip to [XXX] and back (approx. 860 miles). On XXX at 55,329 miles — only 9 days and roughly 860 miles after that quart was added — an oil…

Received Sep 18, 2026 · NHTSA complaint 11765236

Frequently asked questions

Do all 2021 GMC Yukon XLs have engine problems?

No. NHTSA has 138 owner complaints about engine for the 2021 GMC Yukon XL (61% of the 227 complaints for this model year). Complaint data shows that the problem is reported, not how many of all cars sold are affected.

Was there a recall on the 2021 GMC Yukon XL engine?

Yes: 1 safety recall list engine. Check your VIN on NHTSA.gov to see whether the fix was done on your car.

At what mileage do engine problems start?

The median reported mileage is 70,500 miles: half of the reports with a mileage came before that.

How much does it cost to fix engine problems on the 2021 GMC Yukon XL?

Owners report a typical cost of $5,600 (half paid between $5,150 and $11,300), from 5 complaints that state a repair bill or quote, in 2026 dollars.

What do owners say about engine problems on the 2021 GMC Yukon XL?

The most frequent phrase is “engine failed”, in 17 of 138 complaints, followed by “oil consumption” (8).

See all 2021 GMC Yukon XL problems or engine problems across all Yukon XL years.