What are the most common problems with the 2018 Chevrolet Suburban?

The 2018 Suburban's reliability is rated below average, driven by significant issues with the engine, electrical system, brakes, and powertrain.

How many recalls does the 2018 Chevrolet Suburban have?

The 2018 Chevrolet Suburban currently has 5 recalls on file. Review the full recall report to see affected components and available remedies.

Is the 2018 Chevrolet Suburban a good buy used?

Verdict: Proceed with caution. The 2018 Suburban's reliability is rated below average, driven by significant issues with the engine, electrical system, brakes, and powertrain. Inspect the **engine** for potential lifter and camshaft wear, especially on models exceeding 60,000 miles. Thoroughly check the **braking system**, including the vacuum pump and booster, due to multiple recalls and related complaints. Electrical system concerns, such as battery cable issues and system shutdowns, warrant careful inspection. Transmission problems, including slipping and failure, have been reported at relatively low mileage. Always verify service history, open recalls, and maintenance records before purchasing.

What maintenance costs should I expect for the 2018 Chevrolet Suburban?

Refer to the maintenance cost guide for interval schedules, DIY difficulty ratings, and typical repair cost ranges for the 2018 Chevrolet Suburban.

2018 Chevrolet Suburban Report

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

Updated May 30, 2026Ethan Miller3 Critical Recalls

Overall Score

Our Verdict

Proceed with caution

Key Takeaways

The 2018 Suburban's reliability is rated below average, driven by significant issues with the engine, electrical system, brakes, and powertrain.
Inspect the engine for potential lifter and camshaft wear, especially on models exceeding 60,000 miles.
Thoroughly check the braking system, including the vacuum pump and booster, due to multiple recalls and related complaints.
Electrical system concerns, such as battery cable issues and system shutdowns, warrant careful inspection.

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Overview

2018 Chevrolet Suburban

The 2018 Chevrolet Suburban offers substantial passenger and cargo space, making it a compelling choice for families needing to haul people and gear. However, potential buyers should approach this model year with caution. It has accumulated a notable number of complaints and recalls, particularly concerning critical systems like the engine, brakes, and powertrain. While its 5.3L V8 engine and 4-wheel-drive system provide capable performance, the documented issues suggest a higher risk of ownership. With an average combined fuel economy of 18 MPG, expect high fuel costs.

Critical Failure Risk

The 5.3L V8 engine is prone to lifter and camshaft wear, often leading to catastrophic engine failure. This issue is frequently reported and can occur at relatively low to moderate mileage.

Early detection can help you avoid a $2,000-$5,000 repair.

Open Maintenance Analysis →

Safety & Bulletins

Open Recalls5

Service Bulletins0

Full Recall History →

Owner Complaints

100

Engine15

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

Buyers seeking a trouble-free ownership experience.

+2 more buyer-fit warnings in the full report

2018 Chevrolet Suburban Reliability Analysis

Specs

Vehicle Specs

Fuel Type: Regular
Seating Capacity: 8
Transmission: Automatic
Drivetrain: 4-Wheel Drive
EPA Combined MPG: 18

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Most Common Issues

1. ENGINE

Most reported

Usage: 15 reports

2. Electrical System

Usage: 13 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 and Inspection - Brake System Inspection - Fluid Level Checks (Coolant, Brake, Power Steering)

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 (6 service intervals)

Repair forecasts with mileage and cost context

Full buyer-fit guidance and who should avoid it

Full specs and trim-level context

5 recall campaign details & remedy notes

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FAQ

Is the 2018 Chevrolet Suburban reliable?

The CarFocal Reliability Score for the 2018 Chevrolet Suburban is 8.2/10. Reliability score is 8.2/10. NHTSA recalls: 5. Owner complaints: 100.

How practical is the 2018 Chevrolet Suburban for daily use?

Practicality score is 4.8/10. The score is mainly limited by high fuel consumption. EPA combined economy is 18 MPG. Seating capacity is 8. 4 passenger doors are listed.

What is the overall score for the 2018 Chevrolet Suburban?

The CarFocal Overall Score for the 2018 Chevrolet Suburban is 6.2/10. Overall score is 6.2/10 (Mixed). Confidence 55%. Maintenance 8.5/10. Practicality 4.8/10.

What does it cost to own and maintain a 2018 Chevrolet Suburban?

Based on Carfocal's data, First listed service: - Oil Change (5W-30 Synthetic) (Parts: 5W-30 Synthetic Oil, Oil Filter) - Tire Rotation and Inspection - Brake System Inspection - Fluid Level Checks (Coolant, Brake, Power Steering) at 7,500 miles. Estimated first-year maintenance: $400 - $700. Repair prediction highlight: Engine Lifters/Camshaft (typical at 75,000 miles, estimated cost Min: $2,000 • Max: $5,000+).

What is the MSRP range for the 2018 Chevrolet Suburban?

Base MSRP is $50,200.

What engine is in the 2018 Chevrolet Suburban?

Engine specs list 8 • 5.3.

What transmission does the 2018 Chevrolet Suburban use?

According to CarFocal's specs for the 2018 Chevrolet Suburban, transmission is Automatic. The paired drivetrain is 4-Wheel Drive.

What is the combined EPA MPG for the 2018 Chevrolet Suburban?

EPA combined estimate is 18 MPG.

What driver assistance and safety features are available on the 2018 Chevrolet Suburban?

8 standard and 4 optional driver assistance features. Key features include Anti-lock Braking System, Electronic Stability Control, Traction Control.

How many people fit in a 2018 Chevrolet Suburban?

According to CarFocal's specs for the 2018 Chevrolet Suburban, seating capacity is 8.

What drivetrain does the 2018 Chevrolet Suburban use?

According to CarFocal's specs for the 2018 Chevrolet Suburban, drivetrain is 4-Wheel Drive. Transmission is Automatic.

What are the most common engine problems on the 2018 Chevrolet Suburban?

Top complaint category: engine (15 reports, 15% of complaints).

Are there open safety recalls on the 2018 Chevrolet Suburban?

This model year has 5 official safety campaigns listed.

Should buyers consider alternatives to the 2018 Chevrolet Suburban?

Alternatives listed in this guide: 2018 Ford Expedition and 2018 Toyota Sequoia.