2018 GMC Yukon Engine Problems
- Complaints
- 27about this part
- Share
- 39%of 70 total for the year
- Median mileage
- 104,000miles
- Trend
- RisingComplaints filed in the last 3 full calendar years are at least 25% higher than in the 3 years before.
NHTSA recorded 27 complaints about the engine of the 2018 GMC Yukon, 39% of the 70 complaints for this model year. Where a mileage was given, the median is 104,000 miles.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“As we were driving, without warning, the engine started to rumble and clank. We had to pull off the road in a neighborhood and have it towed to the dealership. Thankfully, we were driving on side/neighborhood roads at the time. If this would have happened on the highway it could have been very dangerous. They'll dealership said it was unsolvable and we needed to purchase an entirely new engine.”
NHTSA complaint #11645755, filed 2025-03“I started my vehicle and as I accelerated I started to hear a knocking noise. The vehicle and engine have been inspected by the dealership. The problem has also been confirmed by the dealership.There were no warning lights or messages before the knocking noise started.”
NHTSA complaint #11737607, filed 2026-05“NHTSA's recall number 25V-274. This vehicle should fall under this recall it happed to the this motor at 58k miles and I had to put a whole motor in it at 58k miles in 2022. The Yukon Denali has the L87 V8. I bought the new motor threw GM so it should be tied to this vin number”
NHTSA complaint #11657717, filed 2025-04“The 2018 Yukon has been at the dealership several timeswaiting for a valve body for the transmission. There are valve body recalls for other year GM vehicles with the same transmission, but not for the 2018 model even though it appears to be the same part number. I don’t understand how this 2018 model apart of the recalls when it’s got the same issues as the newer ones. This is the second Yukon I’ve bought in the last seven years and the other one had the exact same issue.”
NHTSA complaint #11730984, filed 2026-04“My car was taken in for service in early January 2025 after just being serviced in November. The engine was making a ticking noise. The check engine light was not on, and appeared to be running fine otherwise so we drove it in for service. We were told upon inspection that the cam and lifters needed replacement, but we pushed for further inspection which found the car needs an entirely new engine, at the advice of multiple inspectors and the service department of two dealerships. …”
NHTSA complaint #11649500, filed 2025-03Related service bulletins
- 11024330Sep 6, 2025This technical bulletin provides a procedure to replace the camshaft actuator magnet to correct customer concerns of engine related shudder.
- 11026017Jun 5, 2025This service bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage.
- 11024485May 15, 2025The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the…
- 11020254May 7, 2025This service bulletin provides information to dealership personnel for new vehicles with less than 1,000 miles that may not pass California smog inspection or smog inspection in…
- 11019503Apr 18, 2025This warranty administration bulletin provides policy information on vehicles outside of a California Emissions State who move to and register their vehicle in a California…
- 11017263Mar 25, 2025This bulletin advises the technician to flush the cooling system multiple times if oil has been found in the cooling system and replace the parts that may be contaminated due to…
- 11016942Mar 4, 2025This bulletin advises the technician to flush the cooling system multiple times if oil has been found in the cooling system and replace the parts that may be contaminated due to…
- 11014230Jan 31, 2025This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
- 11014233Jan 30, 2025This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large…
- 11013069Jan 9, 2025This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.
Engine: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2026 | 34 | 77% |
| 2025 | 38 | 67% |
| 2024 | 74 | 70% |
| 2023 | 160 | 65% |
| 2022 | 112 | 61% |
| 2021 | 189 | 55% |
| 2020 | 12 | 32% |
| 2019 | 28 | 51% |
| 2018 | 27 | 39% |
| 2017 | 33 | 17% |
| 2016 | 34 | 13% |
| 2015 | 33 | 6% |
| 2014 | 8 | 14% |
| 2013 | 10 | 9% |
| 2012 | 3 | 5% |
| 2011 | 13 | 8% |
| 2010 | 8 | 8% |
| 2009 | 4 | 4% |
| 2008 | 13 | 7% |
| 2007 | 23 | 5% |
| 2006 | 2 | 7% |
| 2005 | 7 | 8% |
| 2004 | 12 | 8% |
| 2003 | 12 | 6% |
| 2002 | 1 | 1% |
| 2001 | 3 | 2% |
| 2000 | 1 | 1% |
| 1995 | 1 | 1% |
Other parts of the 2018 GMC Yukon
18 complaintsOther or unknown
8 complaintsSuspension
8 complaintsBrakes
5 complaintsElectrical system
4 complaintsSteering
4 complaintsAir bags
3 complaintsVehicle speed control
3 complaintsVisibility (wipers, defrost, mirrors)
3 complaintsExterior lighting
2 complaintsFuel system
2 complaintsBody and structure
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