2018 GMC YUKON Problems
Real NHTSA owner complaints for the 2018 Gmc Yukon. This model year has 68 NHTSA complaints — top issue: Engine Problems.
Model-Year Complaints
68 owner reports
Recall Campaigns
3 NHTSA campaigns
Top Failure Area
Engine Problems
Worst 2018 Gmc Yukon Problems
Top 3 most-reported issues with average mileage at failure.
Engine Problems
Transmission / Drivetrain
Suspension Failures
AI Interpretation — 2018 Gmc Yukon
Low ConfidenceComplaints for the 2018 GMC Yukon are concentrated in engine and transmission issues, with a smaller number of suspension and brake reports. Crash-related complaints are minimal, but the overall confidence in the data is low due to the limited sample size.
- Engine Problems account for the largest share of complaints (27 out of 68).
- Transmission/Drivetrain issues are the second most reported component (18 complaints).
- Suspension Failures and Uncategorized Issues each have 8 complaints.
- Engine Problems
- Transmission/Drivetrain
- Suspension Failures
- Inspect the engine for reported issues such as stalling or loss of power.
- Verify all open recalls at nhtsa.gov/recalls.
- Request service records for transmission and drivetrain repairs.
- Have a mechanic inspect suspension components for wear or failure.
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All Problems by Category
Every NHTSA complaint category for the 2018 Gmc Yukon. A single complaint may appear in multiple categories.
| Component | Complaints | Crashes | Fires | Avg Mileage | Volume |
|---|---|---|---|---|---|
| Engine Problems | 27 | — | — | — | |
| Transmission / Drivetrain | 18 | 1 | — | — | |
| Suspension Failures | 8 | — | — | — | |
| Uncategorized Issues | 8 | — | — | — | |
| Brake System | 5 | — | — | — | |
| Steering Defects | 4 | — | — | — | |
| Unintended Acceleration | 3 | — | — | — | |
| Electrical Faults | 3 | — | — | — | |
| Airbag Malfunctions | 3 | 2 | — | — | |
| Fuel/Propulsion System | 2 | — | — | — | |
| Headlight/Taillight Failures | 2 | — | — | — | |
| Wheel Issues | 2 | — | — | — | |
| Visibility/Wiper | 2 | — | — | — | |
| Structural Problems | 2 | 1 | — | — | |
| Visibility | 1 | — | — | — | |
| Electronic Stability Control (Esc) | 1 | — | — | — | |
| Forward Collision Avoidance: AEB | 1 | — | — | — | |
| Lane Departure | 1 | — | — | — | |
| Tire Issues | 1 | — | — | — |
Source: NHTSA Complaints Database. Complaint counts may exceed total complaints because one report can span multiple categories.
Search Owner Complaints
Read what owners actually reported to NHTSA for the 2018 Gmc Yukon. Type a keyword (e.g. “transmission”, “stalling”, “brakes”) to filter.
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 underst…
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 …
I purchased my used GMC YUKON from a used car dealership 3/28/26. I signed the papers for the agreement while I was driving the vechicle home I lost power and it wouldn't go forward with gas applied. The check engine light came on, I pulled the suv over and it was towed. The code…
Please see attached letter
The 2018 Yukon Denali has been at the dealership for 7 weeks waiting 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. The tr…
As of [XXX] , I witnessed a squealing sound coming from the rear end of my 2018 Denali Yukon XL truck. And it's affecting my braking. And it jerked when I changed my gears on my truck . And there are lights on in my dashboard on my truck. The engine light was blinking on and off …
The contact owns a 2018 GMC Yukon. The contact stated after the vehicle was serviced, while driving 30 MPH and depressing accelerator pedal, the vehicle failed to respond. The contact stated that the vehicle hesitated, and the contact shifted to a lower gear to drive to the resid…
Air conditioner condenser faulty and had to repaired. Premium Ride Shocks faulty and had to be repaired. Lifters and bent pushrod faulty and had to be repaired. Vehicle currently has approximately 70,000 miles. These are all known issues by GM and very expensive to fix and no rec…
What component or system failed or malfunctioned, and is it available for inspection upon request? Engine failure due to lifter failure and bent push rod and needed cam replaced. It is available for inspection. How was your safety or the safety of others put at risk? Could have …
Dealership did a tune-up in June 2025 and had my truck for 2 weeks, no issues with transmission discovered or discussed. Now in September 2025, 2018 GMC Yukon has developed a torque converter shutter when driving between 40 and 50 mph. I took the vehicle to an independent shop wh…
I was driving on I75 North, just North of Chattanooga. I was in the Center Lane. I lost all power to the vehicle. The engine stopped. I had no power steering, no power brakes, and was in heavy traffic. I managed to shift lanes and get it to the shoulder of the road. The vehicle w…
My 2018 GMC Yukon blew an engine with only 81,000 miles. Had four shops including (2 GM dealerships) look at the vehicle, pictures, and findings and concluded the engine had blown. The vehicle had began running very rough while driving down the road at 45mph. The CEL showed a mis…
All back light won’t turn on only brake lights but not night time running lights
driving the vehicle on a regular city street when the flashing engine light came on out of nowhere. immediately pulled off and had the vehicle towed to my dealership. result of the inspection, i have to replace my engine. as soon as i started researching the issue it is clear …
Vehicle (engine) shut off while driving on highway. Would not restart. Had vehicle towed from highway to repair shop. No check engine light ever came on. The engine was replaced and old one had to be returned in order to avoid paying a $5,000 core charge. I found out after rep…
ENGINE WORK VALVE INTAKE LIFTER AND CAMSHAFT REPAIRS / OIL SENSOR HAS BEEN GOING HAYWIRE / REAR STRUTS KEEP POPPING OFF AND AFTER STRUTS REPAIRED BOUGHT THE TRUCK 05/2024 AND HAD TO TAKE TO REPAIR 12/2024 AND ONCE MONTH EVER SINCE.
Has lifter chattering / camshaft issues as a result of manufacture defect that so many people are complaining about from the research I have done
My 2018 GMC Yukon SLE has a Transmission Failure and a engine oil coolant failure. The issues occurred while driving when the vehicle had to go into limp status to prevent the transmission from complete failure. I have taken the vehicle to the dealership 2x and they changed t…
The contact owns a 2018 GMC Yukon. The contact stated that the message "Transmission Hot - Idle Engine" was intermittently displayed. The vehicle was taken to the dealer, where the TCM was reprogrammed, and the thermostat and the water pump were replaced; however, the failure per…
AFM lifter failure and cam shaft failure
Source: NHTSA Complaints Database. Real owner reports for the 2018 Gmc Yukon.
Recalls for 2018 Gmc Yukon
3 campaignsNHTSA recall campaigns for the 2018 Gmc Yukon. Recalls are free to fix at any authorized dealer. Run a VIN check below to see if your specific vehicle has open recalls.
2018 Gmc Yukon — FAQ
Answers based on real NHTSA complaint and recall data for this specific model year.
Is the 2018 Gmc Yukon reliable?▾
Notable Issues. The 2018 Gmc Yukon has 68 NHTSA owner complaints, 2 crash-related, and 3 recall campaigns. The most reported issue is Engine Problems (27 complaints). Source: NHTSA via VinSpector AI.
What are the most common problems with the 2018 Gmc Yukon?▾
#1: Engine Problems (27 complaints). #2: Transmission / Drivetrain (18 complaints). #3: Suspension Failures (8 complaints)
At what mileage do problems start on the 2018 Gmc Yukon?▾
Mileage data is not available or insufficient for this model year.
How safe is the 2018 Gmc Yukon?▾
The 2018 Gmc Yukon has 2 crash-related complaints and 0 fire reports out of 68 total NHTSA complaints. 2 injuries were reported. For NCAP lab crash test star ratings, visit nhtsa.gov/ratings.
Does the 2018 Gmc Yukon have any recalls?▾
Yes — 3 NHTSA recall campaigns affect the 2018 Gmc Yukon. The largest issue: SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM. Check nhtsa.gov/recalls or run a VIN check to see if your specific vehicle has open recalls.
Should I buy a 2018 Gmc Yukon?▾
The 2018 Gmc Yukon has notable issues — review the top problems before buying. Pay particular attention to Engine Problems issues. Always run a VIN check on the specific car you're considering to check for accident history, open recalls, and title brands.
Source: NHTSA (National Highway Traffic Safety Administration) complaint and recall databases, aggregated by VinSpector AI.
Wider context: See the full Gmc Yukon reliability report with year-by-year comparison.
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Check Your Specific 2018 Gmc Yukon
Real owner complaints tell you about the model. The VIN tells you about your specific car — accidents, title issues, odometer fraud. Full report just $12.95 (vs. Carfax $39.99).