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Transmission and drivetrainPart report

2021 GMC Yukon Transmission and drivetrain Problems

Complaints
55about this part
Share
16%of 344 total for the year
Median mileage
75,000miles
Trend
RisingComplaints filed in the last 3 full calendar years are at least 25% higher than in the 3 years before.

NHTSA recorded 55 complaints about the transmission and drivetrain of the 2021 GMC Yukon, 16% of the 344 complaints for this model year. Where a mileage was given, the median is 75,000 miles. 2 recall campaigns on record are filed under a similar system.

Example complaints

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

“Vehicle will not shift into gear from park. When it's in gear (you can hold the button to select a gear to move), but as soon as you release the button - it goes right back into park. It comes and goes. I've been stuck in my driveway. Stuck at the grocery store. Had it once surprise me at a stoplight and was almost rear ended - that time I needed to hold the button to escape to the nearest parking lot. Dealer, of course, was not able to replicate as they said the issue does not throw a code. I have video and pictures, which I have supplied. Sometimes the engine light comes on too. …”

NHTSA complaint #11383127, filed 2020-12, 1,200 miles

“the electronic solenoid in the valve body failed and it is available for inspection. it was struggling to shift on freeway at speeds of 65 mph and i would lose power. the vehicle was inspected by a gm dealership service man. there were no warning lamps when part started to fail, luckily when I parked the vehicle would not go into gear and then the warning light (check engine light) came on.”

NHTSA complaint #11679320, filed 2025-08

“My 2021 GMC Yukon suffered the same engine failure that is the subject of the recall. It has just over 70,000 miles. I'm now told I need a new engine. The dealer confirmed that this is the same issue that has impacted other similar vintage Yukons.”

NHTSA complaint #11720183, filed 2026-02

“I believe it’s a transmission. While driving down the interstate and the car just won’t get up and go like it should, and I’m gonna get rear ended. I’ve I’ve taken it to the dealership three or four times. I keep telling me nothing’s wrong.”

NHTSA complaint #11771545, filed 2026-10

“My vehicle is currently in repair due to a known issue with GM. GM has put out a Technical Service Bulletin 20-NA-038 referencing a well-known problem with Cylinder 5 failing in 2021 5.3L and 6.0L engines. However, there has not been a recall. Ironically, there were other vehicles brought to the dealership (Sam Boswell GMC in Enterprise, AL) for the same repair on the same day as my vehicle. I'm hoping to get an initiative started for a recall”

NHTSA complaint #11686249, filed 2025-09

Related recalls

Related service bulletins

Transmission and drivetrain: other model years

YearComplaintsShare of year
20261125%
2025712%
20241312%
20234719%
20222916%
20215516%
20201541%
20191324%
20181826%
20174824%
20163613%
2015469%
201435%
201354%
201212%
201174%
201033%
200944%
200884%
2007215%
200627%
200589%
200443%
200384%
2002106%
2001137%
200085%
1999147%
1998810%
19971511%
1996811%
199544%
199423%
199316%
1992211%

Other parts of the 2021 GMC Yukon

Engine
190 complaints
Fuel system
56 complaints
Engine cooling
32 complaints
Electrical system
31 complaints
Other or unknown
23 complaints
Forward collision avoidance
19 complaints
Air bags
18 complaints
Brakes
12 complaints
Steering
11 complaints
Seats
7 complaints
Suspension
6 complaints
Vehicle speed control
6 complaints

← All problems reported for the 2021 GMC Yukon

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 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