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Vehicle speed controlPart report

2021 GMC Yukon XL Vehicle speed control Problems

Complaints
7about this part
Share
3%of 230 total for the year
Median mileage
—not reported
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 7 complaints about the vehicle speed control of the 2021 GMC Yukon XL, 3% of the 230 complaints for this model year.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

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

“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

“While driving my check engine light came on indicating that service was needed on the Electronic Stability Control (ESC), traction control, Anti-Lock Brake System (ABS), brake assist the vehicle top speed reduced to 43mph. My braking system was compromised and I have to travel at reduced speeds on busy roadways to arrive at my destinations. I have taken the vehicle to a certified GMC technician for diagnostics and repair.”

NHTSA complaint #11575674, filed 2024-03

“Was driving the vehicle at 70 mph on the highway without any issues for several hours and suddenly the vehicle lost power and had no propulsion. It went into neutral automatically and the engine shut off while driving. Thankfully I was on a downward slope and could steer the vehicle off the very busy highway. Once safe, I tried to restart the car but the engine would not start or turn over. Roadside assistance came to help as well as a flatbed tow truck. …”

NHTSA complaint #11758876, filed 2026-08

“I am writing to express my concern regarding a serious issue with my 2021 GMC Yukon. Recently, while driving, I experienced a sudden surge in power. About five minutes later, when attempting to shift into reverse, the vehicle would not respond. I tried multiple times with no success. Afterward, while driving it briefly around the block, it made a clunking sound, which raised further concern. Ultimately, I had to call a tow truck, and the vehicle was taken to George Gee GMC in Liberty Lake, Washington. Unfortunately, the next day the dealership was unable to duplicate the issue. …”

NHTSA complaint #11656392, filed 2025-04

“10 speed transmission It’s been at the dealer for a month and they checked it today. Same issues as the mass recall Dash alert for reduced speed drive with caution. It was extremely dangerous because it malfunctioned on curvy winding roads”

NHTSA complaint #11679994, filed 2025-08

Related service bulletins

Vehicle speed control: other model years

YearComplaintsShare of year
202613%
202514%
202434%
202373%
202232%
202173%
201946%
201824%
201743%
201642%
201531%
201419%
201112%
201014%
200766%
2006318%
200512%
200445%
200311%
200122%
200046%

Other parts of the 2021 GMC Yukon XL

Engine
141 complaints
Transmission and drivetrain
49 complaints
Fuel system
34 complaints
Engine cooling
21 complaints
Electrical system
14 complaints
Other or unknown
8 complaints
Forward collision avoidance
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 31, 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