2023 Toyota Mirai Engine Problems
- Complaints
- 1about this part
- Share
- 17%of 6 total for the year
- Median mileage
- —not reported
- Trend
- Too newThis model year is less than 4 years old, so a trend is not meaningful yet.
NHTSA recorded 1 complaints about the engine of the 2023 Toyota Mirai, 17% of the 6 complaints for this model year.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“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 traffic at low speed. At the moment I was entering the roadway, the vehicle suddenly lost propulsion/power without warning. Simultaneously, the vehicle’s infotainment/center display went completely black, consistent with a system reboot or electrical interruption. …”
NHTSA complaint #11713462, filed 2026-01Related service bulletins
- 11037202Aug 20, 2026OBSOLETE NOTICE August 20, 2026: This bulletin is now obsolete. Please see T-SB-0051-26.
- 11037201Aug 20, 2026This bulletin includes basic procedures for performing a rescue charge at battery on high voltage (HV) Ni-MH and Li-ion batteries.
- 11033404May 7, 2026Although the Mirai Electric Heater Assemblies are covered by Toyota’s New Vehicle Limited Warranty for 3 years or 36,000 miles (whichever comes first), we at Toyota care about…
- 11033403May 6, 2026Technical instructions for 26te03 electric heater sub-assembly replacement certain 2021 - 2024 mirai
- 11015882Feb 12, 2025OBSOLETE NOTICE February 11, 2025: This bulletin is now obsolete. Please see T-SB-0021-25.
- 11016782Feb 10, 2025Flash reprogramming allows the Electronic Control Unit (ECU) software to be updated without replacing the ECU. Flash calibration updates for specific vehicle models/ECUs are…
- 11015496Feb 10, 2025Flash reprogramming allows the Electronic Control Unit (ECU) software to be updated without replacing the ECU. Flash calibration updates for specific vehicle models/ECUs are…
- 11012753Dec 10, 2024This bulletin includes basic procedures for performing a rescue charge at battery on high voltage (HV) Ni-MH and Li-ion batteries. This bulletin should be used in conjunction…
Engine: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2023 | 1 | 17% |
| 2022 | 2 | 20% |
Other parts of the 2023 Toyota Mirai
3 complaintsForward collision avoidance
2 complaintsTransmission and drivetrain
2 complaintsElectrical system
1 complaintsOther or unknown
1 complaintsVehicle speed control
1 complaints
← All problems reported for the 2023 Toyota Mirai
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology