2024 Toyota Mirai Problems: 3 Issues Every Owner Should Know

2024 model year · 1,750+ owner reports · Updated May 2026

According to Au7o's analysis of 1,750+ owner reports, the 2024 Toyota Mirai has 3 documented known issues, with 2 rated critical. The most serious are Hydrogen Refueling Station Availability and Cost Crisis ($0-$500 repair) and Fuel Cell System Warning and Sudden Power Loss ($0-$8,000 repair). The most commonly reported issue is Hydrogen Refueling Station Availability and Cost Crisis with 800 owner reports. Across all issues, repair costs range from $ to $8,000. DIY maintenance guides at au7o.io.

All 3 Known Issues

Community Reported

800 owners

On the 2016-2024 Toyota Mirai, mirai owners face severe difficulties refueling due to the extremely limited hydrogen infrastructure. As of 2024, only approximately 54 hydrogen stations exist in the U.S., almost all in California, with many frequently offline for maintenance. Hydrogen fuel costs have increased roughly 200%, from $13/kg in 2022 to approximately $36/kg in 2024. The class-action lawsuit alleges Toyota marketed the Mirai despite knowing the refueling infrastructure was inadequate. This has caused severe depreciation — the Mirai retains only about 19.4% of its value after five years.

Common Symptoms

Unable to find operational hydrogen refueling station
Nearest hydrogen station offline for extended periods
Fuel costs significantly higher than expected
Actual driving range 100+ miles less than advertised
Vehicle sitting unused due to inability to refuel

How to Fix

Before purchasing, verify that hydrogen stations along your regular routes are operational using the California Fuel Cell Partnership station map. Budget for significantly higher fuel costs than initially advertised. If you are unable to reliably refuel, consult a lemon law attorney about your options. Toyota previously offered $15,000 in free hydrogen fuel with new Mirai purchases — verify your remaining balance. Consider whether your driving needs can be met by the limited station network.

What Owners Are Using

Parts and tips from 800+ owners who fixed this issue

TipUse the California Fuel Cell Partnership app to check station status before driving to refuel — stations go offline frequently.
NoteDo not purchase a Mirai unless you live within 15 minutes of a reliable hydrogen station. The infrastructure is not improving.
UpgradeChevron Techron fuel system cleaner — cleans injectors, intake valves, combustion chambers (Chevron Techron Fuel System Cleaner)
View on Amazon
UpgradeWix fuel filter — routine replacement for fuel system health (Wix Fuel Filter)
View on Amazon

Typical repair cost:$0 - $500

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800+ owners have reported this issue

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Community Reported

High Confidence800 reportsLast reported by owners Mar 2026Reviewed Mar 2026

Community Reported

350 owners

On the 2016-2024 Toyota Mirai, mirai owners report fuel cell system warnings that signal malfunctions in the hydrogen fuel cell stack, resulting in sudden power loss while driving. A class-action lawsuit filed in 2023 alleges Toyota concealed known defects in the fuel cell system that can cause dangerous power losses. The fuel cell system relies on precise hydrogen supply management, and disruptions from leaks, blockages, or hydrogen storage tank issues trigger warnings and reduced performance or complete shutdown.

Common Symptoms

Fuel cell system warning light on dashboard
Sudden loss of power while driving
Reduced power mode / limp mode activation
Unusual hissing, clicking, or buzzing from fuel cell area
Vibrations while accelerating or at idle

How to Fix

If the fuel cell system warning illuminates, safely pull over and restart the vehicle. Many warnings are caused by software glitches that clear with a restart. For persistent warnings, the dealer must diagnose whether the issue is in the fuel cell stack, power control unit, or hydrogen supply system. Toyota has released software updates that address some fuel cell management issues. Keep all scheduled maintenance current as the fuel cell system requires specific inspections.

What Owners Are Using

Parts and tips from 350+ owners who fixed this issue

TipKeep detailed records of every fuel cell warning — this documentation is important if you need to pursue warranty claims or lemon law.
NoteDo not ignore fuel cell warnings — hydrogen leaks are a serious safety concern and require immediate professional inspection.
TipCheck if your VIN is covered by Toyota's extended fuel cell warranty or any settlement from the class-action lawsuit.
UpgradeChevron Techron fuel system cleaner — cleans injectors, intake valves, combustion chambers (Chevron Techron Fuel System Cleaner)
View on Amazon
UpgradeWix fuel filter — routine replacement for fuel system health (Wix Fuel Filter)
View on Amazon

Typical repair cost:$0 - $8,000

Research This Issue

350+ owners have reported this issue

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Community Reported

High Confidence350 reportsLast reported by owners Mar 2026Reviewed Mar 2026

Community Reported

600 owners

On the 2016-2024 Toyota Mirai, owners consistently report the Mirai's actual driving range falls 80-100+ miles short of Toyota's advertised figures (357 miles for Limited, 402 miles for XLE). Factors include hydrogen tank pressure variations at different stations, temperature effects on fuel cell efficiency, and aggressive driving. Gen 1 (2016-2020) models are particularly affected with a smaller tank and older fuel cell technology. This is a major factor in the class-action lawsuit.

Common Symptoms

Fuel gauge drops faster than expected
Estimated range after refueling is significantly below rated range
Range anxiety due to limited refueling options
Cold weather causing noticeable range reduction
Inconsistent fill levels at different hydrogen stations

How to Fix

Expect roughly 250-300 miles of real-world range rather than the advertised figures. Drive conservatively and use eco mode to maximize range. Plan routes with refueling stops more frequently than the estimated range suggests. In cold weather, expect further range reduction of 10-20%. Gen 2 (2021+) models have improved range but still fall short of advertised numbers.

What Owners Are Using

Parts and tips from 600+ owners who fixed this issue

TipPlan for 250-300 miles of real range, not the advertised 357-402 miles. This prevents being stranded.
TipRefuel when you reach half tank rather than waiting — hydrogen station availability can change without notice.
UpgradeChevron Techron fuel system cleaner — cleans injectors, intake valves, combustion chambers (Chevron Techron Fuel System Cleaner)
View on Amazon
UpgradeWix fuel filter — routine replacement for fuel system health (Wix Fuel Filter)
View on Amazon

Typical repair cost:$0 - $0

Research This Issue

600+ owners have reported this issue

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Community Reported

High Confidence600 reportsLast reported by owners Mar 2026Reviewed Mar 2026

Frequently Asked Questions

What are the most common Toyota Mirai problems?

According to Au7o's analysis of 1,750+ owner reports, the 2024-2024 Toyota Mirai has 3 documented issues. The most frequently reported are: Hydrogen Refueling Station Availability and Cost Crisis, Fuel Cell System Warning and Sudden Power Loss, Real-World Range Significantly Below Advertised Figures. Of these, 2 are rated critical and should be addressed promptly.

Is the Toyota Mirai reliable?

The 2024-2024 Toyota Mirai has 3 known issues documented across 1,750+ owner reports. 2 issues are rated critical: Hydrogen Refueling Station Availability and Cost Crisis and Fuel Cell System Warning and Sudden Power Loss. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

How much does it cost to fix common Toyota Mirai problems?

Repair costs for known Toyota Mirai issues range from $0 to $8,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Hydrogen Refueling Station Availability and Cost Crisis, typically costs $0-$500 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What is the 2016-2024 Toyota Mirai Hydrogen Refueling Station Availability and Cost Crisis?

Mirai owners face severe difficulties refueling due to the extremely limited hydrogen infrastructure. As of 2024, only approximately 54 hydrogen stations exist in the U.S., almost all in California, with many frequently offline for maintenance. Hydrogen fuel costs have increased… Repairs typically run $0-$500. Severity: high.

What is the 2016-2024 Toyota Mirai Fuel Cell System Warning and Sudden Power Loss?

Mirai owners report fuel cell system warnings that signal malfunctions in the hydrogen fuel cell stack, resulting in sudden power loss while driving. A class-action lawsuit filed in 2023 alleges Toyota concealed known defects in the fuel cell system that can cause dangerous power… Repairs typically run $0-$8,000. Severity: high.

What is the 2016-2024 Toyota Mirai Real-World Range Significantly Below Advertised Figures?

Owners consistently report the Mirai's actual driving range falls 80-100+ miles short of Toyota's advertised figures (357 miles for Limited, 402 miles for XLE). Factors include hydrogen tank pressure variations at different stations, temperature effects on fuel cell efficiency, a… Repairs typically run $0-$0. Severity: medium.

2024 Toyota Mirai Problems: 3 Issues Every Owner Should Know

All 3 Known Issues

2016-2024 Toyota Mirai: Hydrogen Refueling Station Availability and Cost Crisis#

Common Symptoms

How to Fix

What Owners Are Using

Research This Issue

2016-2024 Toyota Mirai: Fuel Cell System Warning and Sudden Power Loss#

Common Symptoms

How to Fix

What Owners Are Using

Research This Issue

2016-2024 Toyota Mirai: Real-World Range Significantly Below Advertised Figures#

Common Symptoms

How to Fix

What Owners Are Using

Research This Issue

Other Toyota Models

Frequently Asked Questions

What are the most common Toyota Mirai problems?

Is the Toyota Mirai reliable?

How much does it cost to fix common Toyota Mirai problems?

What is the 2016-2024 Toyota Mirai Hydrogen Refueling Station Availability and Cost Crisis?

What is the 2016-2024 Toyota Mirai Fuel Cell System Warning and Sudden Power Loss?

What is the 2016-2024 Toyota Mirai Real-World Range Significantly Below Advertised Figures?