Toyota Mirai Engine Problems
13 owner complaints filed with NHTSA across 7 model years.
Complaints by Year
Worst year: 2023. Best year: 2021.
Owner Reports
A representative sample of complaints filed with NHTSA.
HYDROGEN VEHICLE NOT RELIABLE IN Orange County, CA. ALSO THE VEHICLE MILAGE IS EXTREMELY POOR, HAVING TO FILL UP ABOUT EVERY 2-3 DAYS. LESS THAN 150 MILES PER TANK EASILY. VEHICLE CONSISTENTLY HAS TO BE TOWED WHEN STATIONS ARE DOWN. HYDR...
While driving in traffic, my 2023 Toyota Mirai suffered a sudden and total loss of motive power. The vehicle became completely unresponsive while in 'Drive', presenting a severe safety hazard. The dashboard displayed multiple cascading w...
I own a 2018 Toyota Mirai in California financed through Toyota Financial. The vehicle relies on hydrogen fuel, but hydrogen stations in California are frequently unavailable or offline. Many stations are closed or out of fuel for exten...
The contact owns a 2022 Toyota Mirai. The contact stated that while driving at various speeds, the vehicle hesitated while the accelerator pedal was depressed and maintained automotive power. The "Parking Support Brake - PSKB" message wa...
On January 26, 2026, at approximately 6:50 AM, I experienced a serious safety-related malfunction in my 2023 Toyota Mirai while entering traffic on Inglewood Avenue in Lawndale, California. I was pulling out of a parking lot into active...
Extreme lack of refueling infrastructure. Unreliable fuel pumps and stations. High risk of dead battery from sitting.
Summary of Issue: I am the owner of a Toyota Mirai that suffered a sudden loss of power due to contaminated hydrogen fuel. The incident rendered the vehicle undrivable and raised serious safety concerns, as loss of propulsion in a fuel-c...
In 2021 I found a Toyota Mirai Hydrogen Fuel lease take over opportunity on [XXX] I saw the car in person and applied to take over the lease from Toyota Financial. A month and a half later I was able to take possession of the car. I tho...
The contact owns a 2022 Toyota Mirai. The contact stated that while driving approximately 60 MPH, the vehicle started losing motive power. The accelerator pedal was depressed, and the vehicle continued to decelerate. The contact stated t...
1) Electrical display goes off on its own. While car in motion and driving,Distract me while I’m driving. 2) car does not start. AAA came to jumpstart, but no luck main battery under the car not responding defective battery. 3) fuel sy...
The vehicle has an advertised driving range by Toyota of 402 miles , depending on that information as true I attempted a trip about that range . During this trip and all other driving times I have never got more then 260 miles of range .
Wrong infrastructure was presented to me for the following six years of purchasing the vehicle as the fueling station is always down and malfunctioning which means I cannot drive the car and when I called and spoke to a Mirai agent by th...