What are the most common problems with the 2021 GMC Yukon?

Significant engine reliability concerns, especially with the 6.2L V8, including potential internal component failures.

How many recalls does the 2021 GMC Yukon have?

The 2021 GMC Yukon currently has 19 recalls on file. Review the full recall report to see affected components and available remedies.

Is the 2021 GMC Yukon a good buy used?

Verdict: High risk. Significant engine reliability concerns, especially with the 6.2L V8, including potential internal component failures. High complaint volume for ENGINE, POWER TRAIN, and FUEL/PROPULSION SYSTEM issues. A critical recall (25V274000) addresses potential engine damage due to connecting rod or crankshaft defects. The 6.2L V8 requires premium fuel, contributing to higher running costs. Overall safety rating is 4 stars, with 5 stars in side crash tests. Always verify service history, open recalls, and maintenance records before purchasing.

What maintenance costs should I expect for the 2021 GMC Yukon?

Refer to the maintenance cost guide for interval schedules, DIY difficulty ratings, and typical repair cost ranges for the 2021 GMC Yukon.

2021 GMC Yukon Report

Known issues, recalls, running costs, and what to check before you buy.

Updated May 30, 2026Daniel Wilson7 Critical Recalls

Overall Score

Our Verdict

High risk

Key Takeaways

Significant engine reliability concerns, especially with the 6.2L V8, including potential internal component failures.
High complaint volume for ENGINE, POWER TRAIN, and FUEL/PROPULSION SYSTEM issues.
A critical recall (25V274000) addresses potential engine damage due to connecting rod or crankshaft defects.
The 6.2L V8 requires premium fuel, contributing to higher running costs.

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Overview

2021 GMC Yukon

The 2021 GMC Yukon offers substantial road presence and capability, but used buyers must be aware of its significant reliability challenges. While it boasts a 4-star overall safety rating and a comfortable ride, the prevalence of engine and powertrain issues, particularly with the 6.2L V8, casts a shadow over its long-term ownership prospects. With 19 recalls and over 300 complaints logged, careful inspection is paramount.

Critical Failure Risk

The 6.2L V8 engine is susceptible to internal failures including worn lifters, damaged bearings, and crankshaft issues. This is a significant concern highlighted by recalls and numerous owner complaints.

Early detection can help you avoid a $3,000-$8,000 repair.

Open Maintenance Analysis →

Safety & Bulletins

Recall Campaigns19

Service Bulletins142

Campaign counts apply to this model year, not your VIN's repair status. Check your VIN with NHTSA.

Full Recall History →

Owner Complaints

330

Engine109

Detailed Issue Breakdown →

Performance & Efficiency

Fuel Efficiency

Combined

MPG

City

MPG

Highway

MPG

Full Vehicle Specifications ↓

Reliability

Practicality

The score is mainly limited by high fuel consumption.

Buyer Fit

Who This Car Is For

Best for

Buyers prioritizing space and towing capacity over long-term mechanical certainty.

+2 more buyer-fit notes in the full report

Avoid if

Drivers seeking a low-maintenance, worry-free ownership experience.

+2 more buyer-fit warnings in the full report

2021 GMC Yukon Reliability Analysis

Specs

Vehicle Specs

Fuel Type: Premium
Seating Capacity: 8
Transmission: Automatic
Drivetrain: Rear-Wheel Drive
Body Style: Suv
EPA Combined MPG: 16

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Most Common Issues

1. ENGINE

Most reported

Usage: 109 reports

2. Powertrain

Usage: 35 reports

See all common issues in the maintenance guide

First Service Interval

- Oil Change (5W-30 Synthetic) (Parts: 5W-30 Synthetic Oil, Oil Filter) - Tire Rotation - Inspect Brake System - Inspect Suspension Components

Est. shop cost: $100 - $200

7,500 mi

Unlock the full maintenance guide for every scheduled service interval and cost forecast.

Full pre-purchase inspection checklist

Complete maintenance schedule (7 service intervals)

Repair forecasts with mileage and cost context

Full buyer-fit guidance and who should avoid it

Full specs and trim-level context

19 recall campaign details & remedy notes

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FAQ

Is the 2021 GMC Yukon reliable?

The CarFocal Reliability Score for the 2021 GMC Yukon is 4.9/10. Reliability score is 4.9/10. NHTSA recalls: 19. Owner complaints: 330.

How practical is the 2021 GMC Yukon for daily use?

Practicality score is 3.6/10. The score is mainly limited by high fuel consumption. EPA combined economy is 16 MPG. Seating capacity is 8.

What is the overall score for the 2021 GMC Yukon?

The CarFocal Overall Score for the 2021 GMC Yukon is 5.4/10. Overall score is 5.4/10 (Mixed). Confidence 85%. Maintenance 8.4/10. Practicality 3.6/10.

What does it cost to own and maintain a 2021 GMC Yukon?

Based on Carfocal's data, First listed service: - Oil Change (5W-30 Synthetic) (Parts: 5W-30 Synthetic Oil, Oil Filter) - Tire Rotation - Inspect Brake System - Inspect Suspension Components at 7,500 miles. Estimated first-year maintenance: $500 - $1,000. Repair prediction highlight: Engine (Internal Components: Lifters, Bearings, Crankshaft) (typical at 75,000 miles, estimated cost Min: $3,000 • Max: $8,000+).

What engine is in the 2021 GMC Yukon?

Engine specs list 8 • 6.2.

What transmission does the 2021 GMC Yukon use?

According to CarFocal's specs for the 2021 GMC Yukon, transmission is Automatic. The paired drivetrain is Rear-Wheel Drive.

Does the 2021 Yukon require Premium gas?

Manufacturer fuel recommendation: Premium.

What is the combined EPA MPG for the 2021 GMC Yukon?

EPA combined estimate is 16 MPG.

What driver assistance and safety features are available on the 2021 GMC Yukon?

13 standard and 1 optional driver assistance features. Key features include Anti-lock Braking System, Electronic Stability Control, Traction Control.

How many people fit in a 2021 GMC Yukon?

According to CarFocal's specs for the 2021 GMC Yukon, seating capacity is 8.

What body style is the 2021 GMC Yukon?

According to CarFocal's specs for the 2021 GMC Yukon, body style is suv.

What drivetrain does the 2021 GMC Yukon use?

According to CarFocal's specs for the 2021 GMC Yukon, drivetrain is Rear-Wheel Drive. Transmission is Automatic.

What are the NHTSA safety ratings for the 2021 GMC Yukon?

NHTSA ratings: Overall 4/5 • Frontal 4/5 • Side 5/5 • Rollover 3/5.

What are the most common engine problems on the 2021 GMC Yukon?

Top complaint category: engine (109 reports, 33% of complaints).

Are there open safety recalls on the 2021 GMC Yukon?

This model year has 19 official safety campaigns listed.

Should buyers consider alternatives to the 2021 GMC Yukon?

Alternatives listed in this guide: 2021 Chevrolet Tahoe and 2021 Ford Expedition.