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#BS-2021-GMCYUK-11852021 GMC YukonProblems, Recalls & Reliability
Based on reports from 492 owners and 13 recalls for this exact model.
Data updated ·NHTSA complaints through October 28, 2026
Preliminary Verdict
Red Flag
Based on 492 complaints, 16 crashes, 0 fires, and 13 recalls. Complaint rate is 2.0x the class average.
Top reported problems
total brake failure
1 complaints • Severity 10/10
catastrophic failure
1 complaints • Severity 10/10
fuel pump cut off
1 complaints • Severity 10/10
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Mechanic Inspection Checklist
220 owners reported engine issues — failures commonly reported around 67K miles.
Failure Timeline by Mileage
Peak failure range: 0–30K miles (35 reports) • Median: 67K miles
30,000-Mile Cost Projection
Best Case
Most Likely
Worst Case
Top cost driver: Engine (220 reports).
Also in your report
Owner Intelligence
AI-synthesized themes from real complaints
Buyer Lot Checklist
Questions, test drive checks, walk-away triggers
Negotiation Talking Points
Data-backed dollar deductions
Buy / Skip Verdict
Final recommendation with conditions
Where the complaints fall
2021 GMC Yukon: Known Issues & Problem Areas
Engine Issues
Engine complaints account for 45% of all reports filed for the 2021 GMC Yukon, with 220 owners filing complaints with NHTSA. The median mileage at time of complaint is 67,000 miles, suggesting issues tend to surface around the 67K-mile mark.
Drivetrain Issues
Drivetrain complaints account for 11% of all reports filed for the 2021 GMC Yukon, with 55 owners filing complaints with NHTSA. Owners should pay attention to drivetrain-related symptoms during test drives and pre-purchase inspections.
Fuel System Issues
Fuel System complaints account for 11% of all reports filed for the 2021 GMC Yukon, with 54 owners filing complaints with NHTSA. Owners should pay attention to fuel system-related symptoms during test drives and pre-purchase inspections.
Electrical Issues
Electrical complaints account for 6% of all reports filed for the 2021 GMC Yukon, with 29 owners filing complaints with NHTSA. Owners should pay attention to electrical-related symptoms during test drives and pre-purchase inspections.
Data sourced from NHTSA owner complaints and community reports. The full report analyzes severity, repair costs, and failure patterns for each category.
Complaint trend by year
Complaints filed with NHTSA by year for the 2021 GMC Yukon. Recent trend: stable.
Don't negotiate blind — know what this car costs to own
Repair costs • Negotiation scripts • Mechanic checklist • Buy/skip verdict
Recall History (13 recalls)
SEATS:CRITICAL FASTENERS
General Motors LLC (GM) is recalling certain 2021 Chevrolet Suburban and Tahoe and GMC Yukon and Yukon XL vehicles. During general assembly, a repair involved removal of one or both front seats. The attachment bolts for the front seats may not have been properly reinstalled after the repair was completed.
SEAT BELTS:CRITICAL FASTENERS
General Motors, LLC (GM) is recalling certain 2020 Chevrolet Bolt EV and 2021 GMC Canyon and Sierra 1500, 2500 and 3500, Yukon, Yukon XL, Cadillac Escalade and Escalade ESV and Chevrolet Blazer, Camaro, Colorado, Equinox, Silverado 1500, 2500 and 3500, Suburban and Tahoe vehicles. Incorrect bolts may have been used at one or more fastening locations to secure the seat belts to the vehicle. If an incorrect bolt was used, the seat belt may not be properly attached to the vehicle.
FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY
General Motors, LLC (GM) is recalling certain 2021 Chevrolet Tahoe and GMC Yukon vehicles. The fuel tank assemblies may be missing adhesive between two layers of the fuel tank shell which may result in a fuel leak.
SEAT BELTS:REAR/OTHER
General Motors, LLC (GM) is recalling certain 2021 Cadillac Escalade, Escalade ESV, GMC Yukon, Yukon XL, Chevrolet Suburban, and Tahoe vehicles with third-row seating. The third-row outboard seat belts may have been entrapped or misrouted behind the outboard seat-folding mechanism, which could result in damaged seat belts.
AIR BAGS:SRS MALFUNCTION WARNING LAMP/LIGHT
General Motors, LLC (GM) is recalling certain 2021 Buick Envision, Cadillac CT4, CT5, Escalade, Escalade ESV, Chevrolet Tahoe, Corvette, Suburban, GMC Yukon, Yukon XL vehicles. The communications gateway module incorrectly processes a loss of communication with the sensing diagnostic module (SDM), causing the air bag malfunction indicator light to inconsistently illuminate.
+ 8 more recalls in the full report
Recall severity analysis & seller scripts
The full report rates each recall's severity and gives you scripts for asking the seller about recall completion.
2021 GMC Yukon NHTSA Safety Ratings
Overall
★★★★★4 of 5 stars
Frontal crash
★★★★★4 of 5 stars
Side crash
★★★★★5 of 5 stars
Rollover
★★★★★3 of 5 stars
From NHTSA's New Car Assessment Program (5-Star Safety Ratings). Where NHTSA tested more than one version of this vehicle, the lowest rating is shown.
NHTSA Defect Investigations (5)
2 investigations still open: NHTSA is examining whether a defect warrants a recall.
Loss of motive power due to engine failure
ENGINE AND ENGINE COOLING:ENGINE:HARD PARTS INTERNAL/MECHANICAL
Loss of motive power due to engine failure post recall remedy
ENGINE
Air Bag Malfunction
AIR BAGS:FRONTAL:DRIVER SIDE:INFLATOR MODULE
Loss of motive power due to engine failure
ENGINE AND ENGINE COOLING:ENGINE:HARD PARTS INTERNAL/MECHANICAL
Loss of motive power due to engine failure post recall remedy
ENGINE
The worst model year for the GMC Yukon is the 2015 — worth knowing if you're cross-shopping years. The biggest problem area is engine.
2021 GMC Yukon vs. Class Average (Standard Sport Utility Vehicle 2WD)
This vehicle
492
Class avg
242
2.0x the class average — significantly more complaints than typical standard sport utility vehicle 2wd vehicles.
Complaint counts correlate with sales volume — popular vehicles naturally generate more reports. The full report normalizes for this.
About this data
NHTSA Complaints
Federal database of owner-filed safety complaints. 492 records for this vehicle.
NHTSA Recalls
Manufacturer-issued safety recalls. 13 recalls found for this vehicle.
Repair Cost Data
Real-world repair costs from owner reports and independent databases.
Last updated . NHTSA complaints received through October 28, 2026; safety ratings from NHTSA's 5-Star program.
Other GMC Yukon Model Years
2021 GMC Yukon: Frequently Asked Questions
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Get the Full 2021 GMC Yukon Report
10 sections of AI analysis based on 492 owner reports. Know before you buy.