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Engine coolingPart report

2018 GMC Yukon Engine cooling Problems

Complaints
1about this part
Share
1%of 70 total for the year
Median mileage
128,640miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 1 complaints about the engine cooling of the 2018 GMC Yukon, 1% of the 70 complaints for this model year. Where a mileage was given, the median is 128,640 miles.

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 contact owns a 2018 GMC Yukon. The contact stated that the vehicle was taken to a local dealer for service, and the contact was informed that the radiator was leaking and needed to be replaced. The contact stated that there were no signs of a leak prior to taking the vehicle for service. The contact was advised by the dealer that it was a common failure for the year and model vehicle. The manufacturer was contacted and offered a buyback. The vehicle was not repaired. The failure mileage was 128,640.”

NHTSA complaint #11729075, filed 2026-04, 128,640 miles

Related service bulletins

Engine cooling: other model years

YearComplaintsShare of year
20241211%
2023146%
2022137%
2021329%
202013%
201912%
201811%
201711%
201510%
201311%
201212%
201111%
200922%
200821%
2007113%
200614%
200522%
200453%
2003126%
200253%
200195%
200021%
1999126%
199834%
199775%
1996913%
199533%
199316%

Other parts of the 2018 GMC Yukon

Engine
27 complaints
Transmission and drivetrain
18 complaints
Other or unknown
8 complaints
Suspension
8 complaints
Brakes
5 complaints
Electrical system
4 complaints
Steering
4 complaints
Air bags
3 complaints
Vehicle speed control
3 complaints
Visibility (wipers, defrost, mirrors)
3 complaints
Exterior lighting
2 complaints
Fuel system
2 complaints

← All problems reported for the 2018 GMC Yukon

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 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