AutoUtility currently tracks 69 official NHTSA owner defect complaints for the 2018 GMC Yukon. Engine & Cooling issues are the most frequently reported category, appearing in 26 complaints (37.7% of submitted records). Among these NHTSA complaint records, 2 filings cite a crash, 1 reports one or more injuries.

Key Problem Findings
  • Total NHTSA Complaints: 69 reports
  • #1 Reported Problem Area: Engine & Cooling (26 reports • 37.7% of submitted complaints)
  • Secondary Problem Areas: Powertrain & Transmission (18), Suspension (8)
  • Crash-Citing Complaints: 2 filings
  • Fire-Citing Complaints: 0 filings
  • Complaints Reporting Injuries / Fatalities: 1 injury filings • 0 fatality filings
Reporting Methodology: Statistics describe unverified consumer submissions voluntarily filed with NHTSA. Complaint volume is not normalized for vehicle sales volume or miles driven. Multiple components can be cited within a single owner complaint submission.
Total Complaints
69
Submitted to NHTSA ODI
Crash-Citing Complaints
2
Filings citing a collision
Fire-Citing Complaints
0
Filings citing smoke or fire
Complaints Reporting Injuries
1
Filings citing one or more injuries
Complaints Reporting Fatalities
0
Consumer filings citing fatalities

Most Reported Problems for 2018 GMC Yukon

Top automotive subsystem defect categories ranked by unique owner complaint volume in federal records

#1 Problem Area 37.7% of complaints

Engine & Cooling

26 owner complaints submitted to NHTSA ODI
✓ 0 crashes or fires cited
#2 Problem Area 26.1% of complaints

Powertrain & Transmission

18 owner complaints submitted to NHTSA ODI
⚠️ 1 crash report
#3 Problem Area 11.6% of complaints

Suspension

8 owner complaints submitted to NHTSA ODI
✓ 0 crashes or fires cited
#4 Problem Area 7.2% of complaints

Brakes & Traction Control

5 owner complaints submitted to NHTSA ODI
⚠️ NHTSA Recall Context

NHTSA records list 3 official safety recall campaigns for this model year involving the same broad component area:

*Component overlap means an official recall exists for the same broad vehicle system. It does not establish that an individual owner complaint was caused by, covered by, or resolved through that recall.
✓ 0 crashes or fires cited
#5 Problem Area 5.8% of complaints

Driver Assistance & Safety Tech

4 owner complaints submitted to NHTSA ODI
✓ 0 crashes or fires cited
Domain Share Note: Share percentage represents the proportion of unique complaint filings referencing each vehicle system. Because single complaints may cite multiple systems (such as engine and electrical simultaneously), domain percentages represent individual category incidence and may sum to over 100%.

Symptoms Mentioned in NHTSA Owner Reports for 2018 GMC Yukon

Specific mechanical, electrical, and driver-assist defect symptoms identified via deterministic narrative analysis

AutoUtility uses deterministic phrase matching to identify recurring symptom descriptions within consumer-submitted NHTSA complaint narratives.

Powertrain & Transmission 4.3% of complaints

Loss of Motive Power While Driving

3 complaint narratives describe this symptom
Symptom Identification Method: A complaint may describe more than one symptom, so percentages may sum to more than 100%. Symptom identification reflects text contained in consumer-submitted complaint records and does not establish a confirmed mechanical diagnosis.

Recent NHTSA Owner Reports for 2018 GMC Yukon

Representative defect filings submitted by owners to the NHTSA Office of Defects Investigation

Engine & Cooling NHTSA ODI ID: #11737607
Filed: 05/13/2026

"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."

Incident Date: 03/04/2026 • Raw NHTSA Component: ENGINE
Powertrain & Transmission NHTSA ODI ID: #11730984
Filed: 04/13/2026

"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..."

Incident Date: 04/03/2026 • Raw NHTSA Component: POWER TRAIN,ENGINE
Engine & Cooling NHTSA ODI ID: #11729075
Filed: 04/03/2026

"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..."

Incident Date: 03/26/2026 • Raw NHTSA Component: ENGINE AND ENGINE COOLING
Powertrain & Transmission NHTSA ODI ID: #11727838
Filed: 03/29/2026

"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 that popped up..."

Incident Date: 03/27/2026 • Raw NHTSA Component: POWER TRAIN
Engine & Cooling NHTSA ODI ID: #11724184
Filed: 03/13/2026

"Please see attached letter"

Incident Date: 03/28/2024 • Raw NHTSA Component: ENGINE
Consumer Narrative Notice: Excerpts are sanitized text descriptions submitted by vehicle owners to the federal ODI database. They reflect the reporting consumer's observations at the time of filing and have not been independently confirmed by vehicle manufacturers or government investigators.

Complaint History for GMC Yukon

Reported defect complaint volume across sibling model years (2015–2026)

Model Year NHTSA Complaints Crash Reports Safety Recalls Detailed Report
2015 GMC Yukon 546 10 10 View 2015 Problems →
2016 GMC Yukon 266 4 5 View 2016 Problems →
2017 GMC Yukon 196 10 3 View 2017 Problems →
2018 GMC Yukon Current Page 69 2 3 Current
2019 GMC Yukon 53 0 2 View 2019 Problems →
2020 GMC Yukon 35 0 4 View 2020 Problems →
2021 GMC Yukon 305 9 13 View 2021 Problems →
2022 GMC Yukon 168 1 5 View 2022 Problems →
2023 GMC Yukon 217 1 4 View 2023 Problems →
2024 GMC Yukon 155 0 3 View 2024 Problems →
2025 GMC Yukon 50 0 2 View 2025 Problems →
2026 GMC Yukon 0 0 3 View 2026 Problems →
Comparative Disclaimer: Complaint totals are unadjusted historical counts and are not normalized for vehicles sold, active fleet size, or total road mileage. Newer model years naturally have had less calendar exposure time to accumulate owner filings.

Detailed NHTSA Component Breakdown for 2018 GMC Yukon

Complete distribution of consumer defect reports across all 29 granular NHTSA system and subsystem classifications

Vehicle Component / System Total Complaints Crash Reports Fire Reports Reported Injury Entries Reported Fatality Entries
Engine NHTSA category: ENGINE 18 0 0 0 0
Powertrain NHTSA category: POWER TRAIN 8 0 0 0 0
Other / Uncategorized NHTSA category: UNKNOWN OR OTHER 7 0 0 0 0
POWER TRAIN,ENGINE 4 0 0 0 0
Service Brakes NHTSA category: SERVICE BRAKES 3 0 0 0 0
Suspension NHTSA category: SUSPENSION 3 0 0 0 0
Air Bags NHTSA category: AIR BAGS 2 1 0 2 0
Steering NHTSA category: STEERING 2 0 0 0 0
Visibility & Wipers NHTSA category: VISIBILITY/WIPER 2 0 0 0 0
ELECTRICAL SYSTEM,EXTERIOR LIGHTING 1 0 0 0 0
ELECTRICAL SYSTEM,UNKNOWN OR OTHER 1 0 0 0 0
ELECTRONIC STABILITY CONTROL (ESC),SERVICE BRAKES 1 0 0 0 0
Engine & Cooling NHTSA category: ENGINE AND ENGINE COOLING 1 0 0 0 0
EXTERIOR LIGHTING 1 0 0 0 0
FORWARD COLLISION AVOIDANCE,LANE DEPARTURE 1 0 0 0 0
POWER TRAIN,AIR BAGS,STRUCTURE 1 1 0 0 0
POWER TRAIN,ELECTRICAL SYSTEM,ENGINE 1 0 0 0 0
POWER TRAIN,ENGINE,FUEL/PROPULSION SYSTEM 1 0 0 0 0
POWER TRAIN,VEHICLE SPEED CONTROL 1 0 0 0 0
SERVICE BRAKES,ENGINE,FUEL/PROPULSION SYSTEM 1 0 0 0 0
STEERING,SUSPENSION,ENGINE 1 0 0 0 0
STEERING,SUSPENSION,WHEELS 1 0 0 0 0
SUSPENSION,ENGINE 1 0 0 0 0
SUSPENSION,POWER TRAIN,STRUCTURE 1 0 0 0 0
SUSPENSION,POWER TRAIN,VEHICLE SPEED CONTROL 1 0 0 0 0
Tires NHTSA category: TIRES 1 0 0 0 0
Vehicle Speed Control NHTSA category: VEHICLE SPEED CONTROL 1 0 0 0 0
Visibility / Glass NHTSA category: VISIBILITY 1 0 0 0 0
Wheels & Hubs NHTSA category: WHEELS 1 0 0 0 0
Data Attribution & Reporting Methodology: Complaints are unverified voluntary submissions to the NHTSA Office of Defects Investigation (ODI). Because multiple vehicle components can be cited within a single owner complaint submission, component-level rollups may sum to more than the unique complaint count (69). Injury and fatality entries in the detailed table reflect raw values entered by reporting consumers across individual submissions; they are not deduplicated casualty statistics and may include duplicate or unverified entries. Complaint volume is not normalized for sales volume or vehicle mileage and does not represent an audited component failure rate.
Official US Government Data Provenance

The complaint records on this page are retrieved directly from the NHTSA Office of Defects Investigation (ODI) public database.

Local Production Store Compiled: August 2026 • Deterministic Audited Dataset • Zero Dynamic External API Runtime Latency.