What are the most common problems with the 2021 Chevrolet Suburban?

Significant concerns exist regarding **engine internal components**, including lifters, bearings, rods, and crankshafts, leading to potential costly repairs.

How many recalls does the 2021 Chevrolet Suburban have?

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

Is the 2021 Chevrolet Suburban a good buy used?

Verdict: High risk. Significant concerns exist regarding **engine internal components**, including lifters, bearings, rods, and crankshafts, leading to potential costly repairs. The **fuel system**, specifically the power control module, is another area prone to failure, potentially causing unexpected stalling. While the **safety ratings** are generally good, with a 4-star overall score, the rollover rating of 3 stars warrants attention. Expect **high fuel costs** with a combined EPA rating of 16 MPG. A high number of recalls (19) and complaints (187) suggest potential quality control issues that could lead to **future repair costs**. Always verify service history, open recalls, and maintenance records before purchasing.

What maintenance costs should I expect for the 2021 Chevrolet Suburban?

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

2021 Chevrolet Suburban 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 concerns exist regarding engine internal components, including lifters, bearings, rods, and crankshafts, leading to potential costly repairs.
The fuel system, specifically the power control module, is another area prone to failure, potentially causing unexpected stalling.
While the safety ratings are generally good, with a 4-star overall score, the rollover rating of 3 stars warrants attention.
Expect high fuel costs with a combined EPA rating of 16 MPG.

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Overview

2021 Chevrolet Suburban

The 2021 Chevrolet Suburban offers substantial passenger and cargo space, a hallmark of the model. However, used-car shoppers should be aware of its below-average reliability rating. The 6.2L V8 engine, while powerful, is a focal point for owner complaints, particularly concerning internal component wear. With 19 recalls and 187 complaints logged with NHTSA, potential buyers must approach this model with caution, prioritizing vehicles with documented maintenance and thorough pre-purchase inspections. High fuel costs are also a consideration.

Critical Failure Risk

Significant concerns exist regarding the durability of internal engine components. Lifter collapse is a common precursor, leading to rattling, misfires, and potentially severe damage to bearings and the crankshaft. This can result in unexpected loss of propulsion or complete engine failure.

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

Open Maintenance Analysis →

Safety & Bulletins

Recall Campaigns19

Service Bulletins114

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

Full Recall History →

Owner Complaints

187

Engine58

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 capacity above all else.

+2 more buyer-fit notes in the full report

Avoid if

Drivers seeking a trouble-free ownership experience with minimal repair risk.

+2 more buyer-fit warnings in the full report

2021 Chevrolet Suburban Reliability Analysis

Specs

Vehicle Specs

Fuel Type: Premium
Seating Capacity: 8
Transmission: Automatic
Drivetrain: 4-Wheel Drive
Body Style: Suv
EPA Combined MPG: 16

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Unlock the complete checklist, maintenance outlook, and buyer verdict in one place.

Most Common Issues

1. ENGINE

Most reported

Usage: 58 reports

2. Powertrain

Usage: 19 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 - $180

7,500 mi

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

Full pre-purchase inspection checklist

Complete maintenance schedule (4 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 Chevrolet Suburban reliable?

The CarFocal Reliability Score for the 2021 Chevrolet Suburban is 5.9/10. Reliability score is 5.9/10. NHTSA recalls: 19. Owner complaints: 187.

How practical is the 2021 Chevrolet Suburban 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 Chevrolet Suburban?

The CarFocal Overall Score for the 2021 Chevrolet Suburban is 5.7/10. Overall score is 5.7/10 (Mixed). Confidence 85%. Maintenance 8.1/10. Practicality 3.6/10.

What does it cost to own and maintain a 2021 Chevrolet Suburban?

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: $300 - $500. Repair prediction highlight: Engine Internal Components (Lifters, Bearings, Crankshaft) (typical at 80,000 miles, estimated cost Min: $3,000 • Max: $8,000+).

What engine is in the 2021 Chevrolet Suburban?

Engine specs list 8 • 6.2.

What transmission does the 2021 Chevrolet Suburban use?

According to CarFocal's specs for the 2021 Chevrolet Suburban, transmission is Automatic. The paired drivetrain is 4-Wheel Drive.

Does the 2021 Suburban require Premium gas?

Manufacturer fuel recommendation: Premium.

What is the combined EPA MPG for the 2021 Chevrolet Suburban?

EPA combined estimate is 16 MPG.

What driver assistance and safety features are available on the 2021 Chevrolet Suburban?

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 Chevrolet Suburban?

According to CarFocal's specs for the 2021 Chevrolet Suburban, seating capacity is 8.

What body style is the 2021 Chevrolet Suburban?

According to CarFocal's specs for the 2021 Chevrolet Suburban, body style is suv.

What drivetrain does the 2021 Chevrolet Suburban use?

According to CarFocal's specs for the 2021 Chevrolet Suburban, drivetrain is 4-Wheel Drive. Transmission is Automatic.

What are the NHTSA safety ratings for the 2021 Chevrolet Suburban?

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

What are the most common engine problems on the 2021 Chevrolet Suburban?

Top complaint category: engine (58 reports, 31% of complaints).

Are there open safety recalls on the 2021 Chevrolet Suburban?

This model year has 19 official safety campaigns listed.

Should buyers consider alternatives to the 2021 Chevrolet Suburban?

Alternatives listed in this guide: 2021 Ford Expedition and 2021 Toyota Sequoia.