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

The **service brake** system is a significant concern, with numerous complaints and a recall for the electronic brake boost module. Inspect this system thoroughly.

How many recalls does the 2021 Chevrolet Trailblazer have?

The 2021 Chevrolet Trailblazer currently has 6 recalls on file. Review the full recall report to see affected components and available remedies.

Is the 2021 Chevrolet Trailblazer a good buy used?

Verdict: Proceed with caution. The **service brake** system is a significant concern, with numerous complaints and a recall for the electronic brake boost module. Inspect this system thoroughly. Powertrain and electrical system issues are also prevalent, suggesting potential for costly repairs down the line. Despite a 5-star overall safety rating, the presence of 6 recalls, including critical ones for brakes and seat fasteners, indicates potential manufacturing or component quality concerns. Fuel economy is respectable, with a combined 28 MPG, but buyers should be aware of potential high fuel costs associated with frequent repairs if issues arise. The 'Shift to Park' issue is a reported problem that can prevent the vehicle from shutting off and locking, posing security and potential roll-away risks. Always verify service history, open recalls, and maintenance records before purchasing.

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

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

2021 Chevrolet Trailblazer Report

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

Updated May 30, 2026Daniel Wilson1 Critical Recall

Overall Score

Our Verdict

Proceed with caution

Key Takeaways

The service brake system is a significant concern, with numerous complaints and a recall for the electronic brake boost module. Inspect this system thoroughly.
Powertrain and electrical system issues are also prevalent, suggesting potential for costly repairs down the line.
Despite a 5-star overall safety rating, the presence of 6 recalls, including critical ones for brakes and seat fasteners, indicates potential manufacturing or component quality concerns.
Fuel economy is respectable, with a combined 28 MPG, but buyers should be aware of potential high fuel costs associated with frequent repairs if issues arise.

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Overview

2021 Chevrolet Trailblazer

The 2021 Chevrolet Trailblazer offers a compact SUV package with decent fuel economy and a 5-star NHTSA safety rating. However, its 'Below Average' reliability verdict, driven by numerous complaints and recalls, warrants careful consideration for used car shoppers. Key issues revolve around the powertrain, electrical systems, and critically, the brakes. With 223 complaints and 6 recalls, potential buyers must prioritize thorough inspections.

Critical Failure Risk

Complaints frequently cite issues with the powertrain, including transmission problems and engine performance concerns. This can manifest as rough shifting, hesitation, or loss of power.

Early detection can help you avoid a $500-$3,000 repair.

Open Maintenance Analysis →

Safety & Bulletins

Recall Campaigns6

Service Bulletins86

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

Full Recall History →

Owner Complaints

223

Power Train32

Detailed Issue Breakdown →

Performance & Efficiency

Fuel Efficiency

Combined

MPG

City

MPG

Highway

MPG

Full Vehicle Specifications ↓

Reliability

Practicality

Buyer Fit

Who This Car Is For

Best for

Budget-conscious buyers prioritizing a 5-star safety rating and decent fuel economy over long-term reliability.

+2 more buyer-fit notes in the full report

Avoid if

Buyers seeking a trouble-free ownership experience and minimal repair costs.

+2 more buyer-fit warnings in the full report

2021 Chevrolet Trailblazer Reliability Analysis

Specs

Vehicle Specs

Fuel Type: Regular
Seating Capacity: 5
Transmission: Continuously Variable Transmission (CVT)
Drivetrain: FWD/Front-Wheel Drive
Body Style: Suv
EPA Combined MPG: 28

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Most Common Issues

1. Powertrain

Most reported

Usage: 32 reports

2. Electrical System

Usage: 30 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 - Cabin Air Filter Replacement

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 (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

6 recall campaign details & remedy notes

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FAQ

Is the 2021 Chevrolet Trailblazer reliable?

The CarFocal Reliability Score for the 2021 Chevrolet Trailblazer is 6.5/10. Reliability score is 6.5/10. NHTSA recalls: 6. Owner complaints: 223.

How practical is the 2021 Chevrolet Trailblazer for daily use?

Practicality score is 5.0/10. EPA combined economy is 28 MPG. Seating capacity is 5.

What is the overall score for the 2021 Chevrolet Trailblazer?

The CarFocal Overall Score for the 2021 Chevrolet Trailblazer is 7.2/10. Overall score is 7.2/10 (Good). Confidence 85%. Maintenance 7.4/10. Practicality 5.0/10.

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

Based on Carfocal's data, First listed service: - Oil Change (5W-30 Synthetic) (Parts: 5W-30 Synthetic Oil, Oil Filter) - Tire Rotation and Inspection - Cabin Air Filter Replacement at 7,500 miles. Estimated first-year maintenance: $700 - $1,200. Repair prediction highlight: Service Brakes (typical at 50,000 miles, estimated cost Min: $300 • Max: $1,000).

What engine is in the 2021 Chevrolet Trailblazer?

Engine specs list 3 • 1.3.

What transmission does the 2021 Chevrolet Trailblazer use?

According to CarFocal's specs for the 2021 Chevrolet Trailblazer, transmission is Continuously Variable Transmission (CVT). The paired drivetrain is FWD/Front-Wheel Drive.

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

EPA combined estimate is 28 MPG.

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

11 standard driver assistance features. Key features include Anti-lock Braking System, Electronic Stability Control, Traction Control.

How many people fit in a 2021 Chevrolet Trailblazer?

According to CarFocal's specs for the 2021 Chevrolet Trailblazer, seating capacity is 5.

What body style is the 2021 Chevrolet Trailblazer?

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

What drivetrain does the 2021 Chevrolet Trailblazer use?

According to CarFocal's specs for the 2021 Chevrolet Trailblazer, drivetrain is FWD/Front-Wheel Drive. Transmission is Continuously Variable Transmission (CVT).

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

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

What are the most common power train problems on the 2021 Chevrolet Trailblazer?

Top complaint category: power train (32 reports, 14.3% of complaints).

Are there open safety recalls on the 2021 Chevrolet Trailblazer?

This model year has 6 official safety campaigns listed.

Should buyers consider alternatives to the 2021 Chevrolet Trailblazer?

Alternatives listed in this guide: 2021 Honda HR-V and 2021 Mazda CX-30.