2021 Toyota Mirai — Full Specifications
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Running gear matters most — before anything else, UK: check tyre prices at TirendoUS: check wheel & tyre prices at WheelHero for this car's fitment.
The 2021 Toyota Mirai is a saloon/sedan powered by an electric motor, with an EPA-rated range of around 402 miles per charge. Owners often keep a Toyota Mirai workshop manual to hand for servicing and repairs.
Compared with the 2020 Toyota Mirai: EPA passenger volume changes from 86 to 93 cu ft.
Full Specifications
| Engine | Fuel cell electric motor |
|---|---|
| Transmission | Automatic (variable gear ratios) |
| Fuel Type | Hydrogen |
| Powertrain | Fuel cell |
| Drive | Rear-Wheel Drive |
| Body Style | Saloon/Sedan |
| Passenger Volume (EPA) | 93 cu ft (2,633 L) |
| Luggage Volume (EPA) | 10 cu ft (283 L) |
| EPA Range | 402 miles |
| Efficiency | 72.0 kWh/100 mi |
| CO₂ Emissions | 0 g/km |
| EPA Greenhouse Gas Score | 10 / 10 (10 = lowest emissions) |
Engine & Transmission Options
EPA lists 1 configuration for the 2021 Toyota Mirai. The headline figures at the top of this page describe the most fuel-efficient configuration.
| Engine | Transmission | Drive | MPG (UK) | MPG (US) | CO₂ g/km | Fuel cost / yr |
|---|---|---|---|---|---|---|
| — | Automatic (variable gear ratios) | Rear-Wheel Drive | 78 | 65 (67/64) | — | — |
MPG (US) shows combined, with city/highway in brackets. Highlighted row = the configuration used for the headline figures. Source: US EPA fueleconomy.gov.
EPA measures interior passenger volume at 93 cubic feet (about 2,633 litres) and luggage volume at 10 cubic feet (about 283 litres). These are US EPA interior-volume figures; they are measured differently from the boot capacity numbers UK manufacturers quote.
Owner Essentials for the 2021 Toyota Mirai
Running Costs: 2021 Toyota Mirai
Work out exact fuel costs with the fuel cost calculator on 247Calculators.
Convert between MPG and L/100km with the unit converters on 247QuickTools. Not sure what tyre size fits? 247TyreCheck explains tyre sizing.
Only need this car occasionally? See our buy vs rent comparison.
2021 Toyota Mirai Safety Ratings (NHTSA)
No NHTSA crash-test rating is on record for this model year. The NHTSA rates only a subset of vehicles each year; you can browse every rated vehicle on our NHTSA Safety Ratings hub.
Recalls & Owner Complaints (NHTSA)
NHTSA lists 1 safety recall campaign that include the 2021 Toyota Mirai (as of 6 October 2026). Most affected areas: Electronic stability control (esc) (1). A campaign often covers several model years or models, so check your own VIN to see whether your car is affected.
- Electronic stability control (esc) — campaign 22V239000, reported 13 April 2022. Risk: Driving with a deactivated stability control system increases the risk of a crash.
Owners have filed 1 complaint with NHTSA about the 2021 Toyota Mirai. The most-reported areas are Fuel/propulsion system (1).
Used-buyer checklist for the 2021 Toyota Mirai
Based on where NHTSA recalls and owner complaints cluster for this model year, these are the areas worth checking before you buy:
- Stability control (1 recall campaign) — Make sure no stability or traction warning light stays on.
- Fuel system (1 owner complaint) — Ask whether any fuel-pump or fuel-system recalls were completed, and watch for hard starting or stalling.
Source: US NHTSA recall and consumer-complaint databases, retrieved 6 October 2026. Complaints are unverified owner reports, not confirmed defects. Check any vehicle by VIN at nhtsa.gov/recalls, and see our guide to checking a used car for recalls.
Last updated: · Data: US EPA (fueleconomy.gov) and NHTSA safety ratings 18 July 2026; NHTSA recalls and complaints 6 October 2026; Wikidata & curated EU catalogue 18 July 2026; European generation and engine data from Wikipedia 7 October 2026
Vehicle data sourced from manufacturer specifications. Always verify with your vehicle handbook or a qualified mechanic. This is a reference tool, not professional advice.
Recommended Accessories for the 2021 Toyota Mirai
Frequently Asked Questions
What engine does the 2021 Toyota Mirai have?
It's powered by an electric motor with an EPA-rated range of around 402 miles per charge.
What is the fuel economy of the 2021 Toyota Mirai?
It uses around 72.0 kWh per 100 miles.
Does the 2021 Toyota Mirai have any recalls?
NHTSA lists 1 safety recall campaign that include the 2021 Toyota Mirai (as of 6 October 2026). Most affected areas: Electronic stability control (esc) (1). A campaign often covers several model years or models, so check your own VIN to see whether your car is affected.
What are the most common problems reported for the 2021 Toyota Mirai?
Among the 1 owner complaints filed with NHTSA, the most-reported areas are Fuel/propulsion system (1 complaint). Complaints are unverified owner reports, not confirmed defects, and raw counts rise with how many cars were sold.
How much interior and luggage space does the 2021 Toyota Mirai have?
EPA measures interior passenger volume at 93 cubic feet (about 2,633 litres) and luggage volume at 10 cubic feet (about 283 litres). These are US EPA interior-volume figures, which are measured differently from the UK boot-capacity numbers manufacturers quote.