What are the most common problems with the 2021 Hyundai Nexo?

Critical recalls address hydrogen leaks and potential fire risks; ensure all remedies are completed.

How many recalls does the 2021 Hyundai Nexo have?

The 2021 Hyundai Nexo currently has 4 recalls on file. Review the full recall report to see affected components and available remedies.

Is the 2021 Hyundai Nexo a good buy used?

Verdict: Proceed with caution. Critical recalls address hydrogen leaks and potential fire risks; ensure all remedies are completed. Top complaints center on the fuel/propulsion system, electrical system, and engine performance. Inspect the automatic emergency braking system thoroughly for proper function. Be aware of reported acceleration delays and power loss issues, particularly on inclines. The vehicle's hydrogen fuel cell technology requires specialized knowledge for inspection and maintenance. Always verify service history, open recalls, and maintenance records before purchasing.

What maintenance costs should I expect for the 2021 Hyundai Nexo?

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

2021 Hyundai Nexo Report

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

Updated May 30, 2026Ethan Miller4 Critical Recalls

Overall Score

Our Verdict

Proceed with caution

Key Takeaways

Critical recalls address hydrogen leaks and potential fire risks; ensure all remedies are completed.
Top complaints center on the fuel/propulsion system, electrical system, and engine performance.
Inspect the automatic emergency braking system thoroughly for proper function.
Be aware of reported acceleration delays and power loss issues, particularly on inclines.

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Overview

2021 Hyundai Nexo

The 2021 Hyundai Nexo stands out as a hydrogen fuel cell electric vehicle (FCEV) offering impressive fuel economy. However, its advanced technology comes with notable ownership considerations. Four critical recalls have been issued, primarily concerning potential hydrogen gas leaks and fire risks, necessitating owners to park vehicles outdoors. Complaints echo these safety concerns, with additional reports of electrical system issues, engine problems, and failures in the automatic emergency braking system. Drivetrain performance issues, including acceleration delays, have also been reported. These factors, combined with a 'Below Average' reliability verdict from the LLM assessment, warrant careful scrutiny for prospective used buyers.

Critical Failure Risk

Potential hydrogen gas leaks have been identified, stemming from faulty sensors or a malfunctioning pressure relief device. This poses a significant safety risk.

Early detection can help you avoid a $1,000-$5,000 repair.

Open Maintenance Analysis →

Safety & Bulletins

Open Recalls4

Service Bulletins0

Full Recall History →

Owner Complaints

Fuel/Propulsion System3

Detailed Issue Breakdown →

Performance & Efficiency

Fuel Efficiency

Combined

MPG

City

MPG

Highway

MPG

Full Vehicle Specifications ↓

Reliability

Practicality

The score is supported by solid day-to-day usability signals.

Buyer Fit

Who This Car Is For

Best for

Early adopters eager for hydrogen technology and its environmental benefits.

+3 more buyer-fit notes in the full report

Avoid if

Drivers seeking straightforward, low-maintenance transportation.

+3 more buyer-fit warnings in the full report

2021 Hyundai Nexo Reliability Analysis

Specs

Vehicle Specs

Fuel Type: Hydrogen
Seating Capacity: 5
Transmission: Automatic
Drivetrain: FWD/Front-Wheel Drive
Body Style: Suv
EPA Combined MPG: 57

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Most Common Issues

1. Fuel System

Most reported

Usage: 3 reports

2. Electrical System

Usage: 2 reports

See all common issues in the maintenance guide

First Service Interval

- Tire Rotation and Inspection (Parts: Tire Sealant) - Cabin Air Filter Replacement (Parts: Cabin Air Filter)

Est. shop cost: $100 - $200

10,000 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

4 recall campaign details & remedy notes

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FAQ

Is the 2021 Hyundai Nexo reliable?

The CarFocal Reliability Score for the 2021 Hyundai Nexo is 7.9/10. Reliability score is 7.9/10. NHTSA recalls: 4. Owner complaints: 10.

How practical is the 2021 Hyundai Nexo for daily use?

Practicality score is 9.4/10. The score is supported by solid day-to-day usability signals. EPA combined economy is 57 MPG. Seating capacity is 5. 4 passenger doors are listed. Boot capacity is 840 litres.

What is the overall score for the 2021 Hyundai Nexo?

The CarFocal Overall Score for the 2021 Hyundai Nexo is 6.9/10. Overall score is 6.9/10 (Good). Confidence 55%. Maintenance 8.0/10. Practicality 9.4/10.

What does it cost to own and maintain a 2021 Hyundai Nexo?

Based on Carfocal's data, First listed service: - Tire Rotation and Inspection (Parts: Tire Sealant) - Cabin Air Filter Replacement (Parts: Cabin Air Filter) at 10,000 miles. Estimated first-year maintenance: $300 - $700. Repair prediction highlight: Hydrogen Leak Detection Sensor (typical at 50,000 miles, estimated cost Min: $200 • Max: $500).

What transmission does the 2021 Hyundai Nexo use?

According to CarFocal's specs for the 2021 Hyundai Nexo, transmission is Automatic. The paired drivetrain is FWD/Front-Wheel Drive.

Does the 2021 Nexo require Hydrogen gas?

Manufacturer fuel recommendation: Hydrogen.

What is the combined EPA MPG for the 2021 Hyundai Nexo?

EPA combined estimate is 57 MPG.

What driver assistance and safety features are available on the 2021 Hyundai Nexo?

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

How many people fit in a 2021 Hyundai Nexo?

According to CarFocal's specs for the 2021 Hyundai Nexo, seating capacity is 5.

What body style is the 2021 Hyundai Nexo?

According to CarFocal's specs for the 2021 Hyundai Nexo, body style is suv.

What drivetrain does the 2021 Hyundai Nexo use?

According to CarFocal's specs for the 2021 Hyundai Nexo, drivetrain is FWD/Front-Wheel Drive. Transmission is Automatic.

What are the most common fuel/propulsion system problems on the 2021 Hyundai Nexo?

Top complaint category: fuel/propulsion system (3 reports, 30% of complaints).

Are there open safety recalls on the 2021 Hyundai Nexo?

This model year has 4 official safety campaigns listed.