Skip to content
Transmission and drivetrainPart report

2018 GMC Yukon XL Transmission and drivetrain Problems

Complaints
9about this part
Share
16%of 56 total for the year
Median mileage
125,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 9 complaints about the transmission and drivetrain of the 2018 GMC Yukon XL, 16% of the 56 complaints for this model year. Where a mileage was given, the median is 125,000 miles. 1 recall campaign on record is filed under a similar system.

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.

“The vehicle keep jerking in and out of gear the issue almost made me crash due to the harsh conditions Took to repair they stated this is a known problem. That is what worries me now”

NHTSA complaint #11739730, filed 2026-05

“The torque converter is too small for the vehicles transmission which then caused it to break and put metal into the transmission fluid. Which cause the transmission to break. My safety was at risk was because while on highway it shot high on RPMs and then made funny noise and wouldn’t go. The problem was confirmed at Aamco transmission where I have to get the transmission rebuilt. There was never a check engine light or check fluid or any codes Thrown before the problem.”

NHTSA complaint #11467488, filed 2022-06

“2018 Yukon XL: Safety of family put at risk over faulty transmission. Vehicle used to transport children many times daily. Transmission began slipping with slight lagging. Vehicle assessed by independent service center and we as customers told this is a common issue with GMC vehicles of this year. Service center was able to reproduce and confirm the issue. Total to rebuild entire transmission was $7,377.33. Total transmission failure. Entire transmission had to be replaced at tremendous expense to our family. Transmission began slipping with slight lagging. …”

NHTSA complaint #11643967, filed 2025-02

“The contact owns a 2018 GMC Yukon XL. The contact stated that after starting the vehicle, the gear shifter failed to function as intended. The contact stated that the gear shifter was shifted into the drive; however, the gear shifter inadvertently shifted back into neutral. The contact stated that the vehicle had just been driven and parked prior to the failure. The contact turned off the vehicle. The vehicle was restarted, and the gear shifter was shifted into the drive. …”

NHTSA complaint #11622554, filed 2024-10, 148,000 miles

“The contact owns a 2018 GMC Yukon XL. The contact stated that while her husband was driving 20 MPH in two wheel-drive(2WD), the vehicle started reversing while the transmission was in drive(D). The contact stated that after her husband switched to four-wheel-drive(4WD) and exceeded 40 MPH, the vehicle responded as needed. The vehicle was driven to the grandparent's residence, where it was parked. The check engine warning light was illuminated while the transmission was in park(P). …”

NHTSA complaint #11627687, filed 2024-11, 102,000 miles

Related recalls

Related service bulletins

Transmission and drivetrain: other model years

YearComplaintsShare of year
202625%
202527%
20241216%
20233917%
20223319%
20214921%
20201328%
20191522%
2018916%
20173624%
20163316%
20153511%
201218%
201149%
200914%
200823%
200755%
200616%
200537%
200445%
200333%
200299%
200143%
200023%

Other parts of the 2018 GMC Yukon XL

Engine
16 complaints
Other or unknown
12 complaints
Brakes
10 complaints
Electrical system
5 complaints
Seat belts
5 complaints
Suspension
4 complaints
Fuel system
3 complaints
Steering
3 complaints
Air bags
2 complaints
Seats
2 complaints
Vehicle speed control
2 complaints
Engine cooling
1 complaints

← All problems reported for the 2018 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