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

Significant risk of **catastrophic engine failure**, particularly concerning connecting rods and crankshafts, reported between 15,000 and 75,000 miles.

How many recalls does the 2021 GMC Yukon XL have?

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

Is the 2021 GMC Yukon XL a good buy used?

Verdict: High risk. Significant risk of **catastrophic engine failure**, particularly concerning connecting rods and crankshafts, reported between 15,000 and 75,000 miles. Frequent **powertrain complaints** include stalling, loss of power, and transmission issues. Numerous recalls, including critical ones for the **engine hard parts** and **fuel pump control module**, demand verification of completion. While offering ample space, the **high fuel costs** and potential for expensive repairs make this a financially risky used purchase. Prioritize a mechanic's inspection focused on the **engine and transmission** before considering purchase. Always verify service history, open recalls, and maintenance records before purchasing.

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

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

2021 GMC Yukon XL Report

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

Updated May 30, 2026Ethan Miller5 Critical Recalls

Overall Score

Our Verdict

High risk

Key Takeaways

Significant risk of catastrophic engine failure, particularly concerning connecting rods and crankshafts, reported between 15,000 and 75,000 miles.
Frequent powertrain complaints include stalling, loss of power, and transmission issues.
Numerous recalls, including critical ones for the engine hard parts and fuel pump control module, demand verification of completion.
While offering ample space, the high fuel costs and potential for expensive repairs make this a financially risky used purchase.

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Overview

2021 GMC Yukon XL

The 2021 GMC Yukon XL offers substantial passenger and cargo space, powered by a robust 6.2L V8 engine. However, used buyers should be aware of its 'Below Average' reliability verdict. The vehicle has a notable number of recalls (19) and a high volume of complaints (205), with a strong concentration on engine and powertrain issues, including catastrophic failures. High fuel costs are also a consideration with its 16 MPG combined rating.

Critical Failure Risk

Significant number of complaints detail catastrophic engine failures, including spun bearings, connecting rod/crankshaft issues, and camshaft/lifter problems. These failures can occur at relatively low mileage.

Early detection can help you avoid a $4,000-$8,000 repair.

Open Maintenance Analysis →

Safety & Bulletins

Open Recalls19

Service Bulletins0

Full Recall History →

Owner Complaints

205

Engine82

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 maximum passenger and cargo volume above all else.

+2 more buyer-fit notes in the full report

Avoid if

Budget-conscious buyers seeking predictable ownership costs.

+2 more buyer-fit warnings in the full report

2021 GMC Yukon XL Reliability Analysis

Specs

Vehicle Specs

Fuel Type: Premium
Seating Capacity: 7
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: 82 reports

2. Powertrain

Usage: 32 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 Brakes - Inspect Wiper Blades

Est. shop cost: $100 - $150

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 XL reliable?

The CarFocal Reliability Score for the 2021 GMC Yukon XL is 6.4/10. Reliability score is 6.4/10. NHTSA recalls: 19. Owner complaints: 205.

How practical is the 2021 GMC Yukon XL 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 7.

What is the overall score for the 2021 GMC Yukon XL?

The CarFocal Overall Score for the 2021 GMC Yukon XL is 5.9/10. Overall score is 5.9/10 (Mixed). Confidence 85%. Maintenance 8.2/10. Practicality 3.6/10.

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

Based on Carfocal's data, First listed service: - Oil Change (5W-30 Synthetic) (Parts: 5W-30 Synthetic Oil, Oil Filter) - Tire Rotation - Inspect Brakes - Inspect Wiper Blades at 7,500 miles. Estimated first-year maintenance: $500 - $800. Repair prediction highlight: Engine (Internal Failure) (typical at 55,000 miles, estimated cost Min: $4,000 • Max: $8,000+).

What engine is in the 2021 GMC Yukon XL?

Engine specs list 8 • 6.2.

What transmission does the 2021 GMC Yukon XL use?

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

Does the 2021 Yukon XL require Premium gas?

Manufacturer fuel recommendation: Premium.

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

EPA combined estimate is 16 MPG.

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

12 standard and 2 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 XL?

According to CarFocal's specs for the 2021 GMC Yukon XL, seating capacity is 7.

What body style is the 2021 GMC Yukon XL?

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

What drivetrain does the 2021 GMC Yukon XL use?

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

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

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 XL?

Top complaint category: engine (82 reports, 40% of complaints).

Are there open safety recalls on the 2021 GMC Yukon XL?

This model year has 19 official safety campaigns listed.

Should buyers consider alternatives to the 2021 GMC Yukon XL?

Alternatives listed in this guide: 2021 Chevrolet Tahoe and 2021 Chevrolet Suburban.