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EnginePart report

2021 GMC Yukon XL Engine Problems

Complaints
140about this part
Share
61%of 229 total for the year
Median mileage
70,500miles
Trend
RisingComplaints filed in the last 3 full calendar years are at least 25% higher than in the 3 years before.

NHTSA recorded 140 complaints about the engine of the 2021 GMC Yukon XL, 61% of the 229 complaints for this model year. Where a mileage was given, the median is 70,500 miles.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“With only 52 miles (2-days old), I was driving home when I heard a knock. Then the engine light came on and the vehicle stability control lowered the vehicle and the vehicle shut off. I was left in the middle of traffic unable to move the vehicle to a safe location. Neutral would not work either. When the vehicle was towed to the Gmc dealership, they knew exactly what was wrong with the car, broken springs in the engine. Apparently they sent a notice stating that the engine springs were breaking and needed to be replaced. …”

NHTSA complaint #11372749, filed 2020-11, 52 miles

“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 waited for a new engine. My car was returned to me with a refurbished engine.”

NHTSA complaint #11719634, filed 2026-02

“While I was driving home from the grocery store with my 4 kids our 2021 GMC Yukon XL (5.3L V8 engine), the vehicle suffered a sudden, catastrophic mechanical engine failure without warning. The engine began violently shaking, lost major propulsion, and dropped into a severe misfire state when we were coming down the highway. …”

NHTSA complaint #11742514, filed 2026-06

“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 is a recall for 2021 to 2024 6.2L V8 engines and again my engine wasn't included in this recall.”

NHTSA complaint #11719979, filed 2026-02

“I was driving from New Orleans with my family when traveling at 75 mph when it’s like the transmission started straining and the engine was losing power/pressure it’s like the engine or transmission was struggling I’m not sure what was causing it but it was a scary experience knowing I’d my kids and my wife with me and we were out in the middle of nowhere.”

NHTSA complaint #11681351, filed 2025-08

Related service bulletins

Engine: other model years

YearComplaintsShare of year
20262665%
20251761%
20245675%
202315468%
202211466%
202114061%
20202451%
20193450%
20181629%
20172618%
20162713%
2015268%
201315%
2012215%
201136%
2010311%
2009313%
200834%
20071010%
2006212%
2005717%
200422%
200311%
200222%
200011%

Other parts of the 2021 GMC Yukon XL

Transmission and drivetrain
49 complaints
Fuel system
33 complaints
Engine cooling
21 complaints
Electrical system
13 complaints
Other or unknown
8 complaints
Forward collision avoidance
7 complaints
Vehicle speed control
7 complaints
Brakes
6 complaints
Suspension
6 complaints
Visibility (wipers, defrost, mirrors)
6 complaints
Air bags
4 complaints
Steering
4 complaints

← All problems reported for the 2021 GMC Yukon XL

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology