DecodedCars2021 Toyota Mirai
Trims, performance, features, fuel economy, safety and known problems — with the pros and cons against similar 2021 models.
- Class
- Compact Cars
- Body styles
- 4dr Sedan
- Engines
- –
- Drivetrain
- Rear-Wheel Drive
- Fuel
- FCV
- Length
- 195.7 in
- Curb weight
- 4,255 lb
- NHTSA rating
- Not rated
- Recalls
- 1 campaign
Pros & cons
What's good
- Few owner complaints1 complaints filed with NHTSA versus about 20 for similar models.
Watch out for
No weak spots against similar models in the data.
Calculated from EPA, NHTSA and vPIC data against 24 similar 2021 models — not a review. How we calculate this →
Overview
The 2021 Toyota Mirai is a compact car and rear-wheel drive.
It measures about 196 inches long and 74 inches wide on a 115-inch wheelbase, with a curb weight of roughly 4,255 lb.
NHTSA has not published a 5-Star overall rating for this model year.
It has 1 recall campaign on file and owners have filed 1 complaint with NHTSA since 2015, most often about the fuel/propulsion system.
What changed for 2021
No changes to engines, powertrains, drivetrains, size, EPA ratings or NHTSA crash rating compared with the 2020 Mirai — a carry-over year in the data.
Compared with 2020; trim, feature and price changes aren't covered. See the 2020 Mirai →
Dimensions & weight
| Body | Length | Width | Height | Wheelbase | Track F / R | Curb weight | Weight F/R |
|---|---|---|---|---|---|---|---|
| 4dr Sedan | 195.7 in | 74 in | 57.9 in | 115 in | 63.4 / 63 in | 4,255 lb | 49/51 |
Transport Canada CVS (Open Government Licence – Canada), Canadian-market figures.
Will it fit your garage? Check with your measurements →Engines, MPG & running costs
| Version | Engine | Transmission | Drive | City / Hwy / Comb | vs. class | Fuel / yr | CO₂ g/mi |
|---|---|---|---|---|---|---|---|
| Mirai XLE FCV | Automatic (variable gear ratios) | Rear-Wheel Drive | 76 / 71 / 74 | – | – | – | |
| Mirai Limited FCV | Automatic (variable gear ratios) | Rear-Wheel Drive | 67 / 64 / 65 | – | – | – |
EPA estimates; "vs. class" is combined MPG against the 2021 EPA class average. How we calculate this →
Safety ratings & technology
NHTSA has not published 5-Star ratings for the 2021 Toyota Mirai.
Similar 2021 compact cars
| Model | Best MPG / range | NHTSA overall | Recalls |
|---|---|---|---|
| 2021 Toyota Mirai (this car) | – | Not rated | 1 |
| 2021 Ford Mustang | 25 MPG | ★★★★★ | 6 |
| 2021 Honda Accord | 48 MPG | ★★★★★ | 4 |
| 2021 Toyota Camry | 52 MPG | ★★★★★ | 1 |
| 2021 Chevrolet Camaro | 25 MPG | ★★★★★ | 4 |
| 2021 Mazda 3 | 31 MPG | Not rated | 0 |
| 2021 Volkswagen Golf/GTI | 33 MPG | ★★★★★ | 1 |
Recalls (1)
Electronic Stability Control (Esc) › Control Module › Software · Apr 13, 2022
NHTSA campaign 22V239000 · 458,110 vehicles
- Problem
- Toyota Engineering & Manufacturing (Toyota) is recalling certain 2022 Lexus LX 600, Lexus NX 350h, Lexus NX 450h+, Toytoa RAV4 Hybrid, 2021-2022 Lexus LS 500h, Toyota Mirai, RAV4 PRIME, Sienna, Venza, and 2020-2022 Toyota Highlander Hybrid vehicles. The Skid Control ECU software may not turn on the Vehicle Stability Control (VSC) system when the vehicle is restarted after the driver has disabled the VSC system. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 126, "Electronic Stability Control Systems."
- Risk
- Driving with a deactivated stability control system increases the risk of a crash.
- Fix
- Dealers will update the Skid Control ECU software, free of charge. Owner notification letters were mailed May 27, 2022. Owners may contact Toyota customer service at 1-800-331-4331. Toyota's number for this recall is 22TA03. Lexus' number for this recall is 22LA01.
Not every 2021 Toyota Mirai is affected — only a VIN check confirms your car.
Owner-reported problems
Unverified owner reports; best-sellers collect more.
Used 2021 Toyota Mirai buyer's checklist
- Run the VIN at nhtsa.gov/recalls. 1 recall this year — ask for proof of repairs.
- Fuel/Propulsion System — 1 owner reports. Smell for fuel around the car and in the cabin, check that it starts easily when warm, and look at the oil dipstick for a fuel smell or rising level.
- Before you pay: service records, a history report and an independent inspection.
Generated by DecodedCars from NHTSA recalls and owner complaints for the 2021 Toyota Mirai. Not a substitute for a professional inspection.
Other Mirai years
Compare all years →| Year | MPG (best) | Length | Overall | Recalls | Complaints |
|---|---|---|---|---|---|
| 2026 Mirai | – | 195.7 in | Not rated | 0 | 0 |
| 2025 Mirai | – | 195.7 in | Not rated | 1 | 0 |
| 2024 Mirai | – | 195.7 in | Not rated | 2 | 0 |
| 2023 Mirai | – | 195.7 in | Not rated | 2 | 6 |
| 2022 Mirai | – | 195.7 in | Not rated | 1 | 10 |
| 2020 Mirai | – | – | Not rated | 0 | 1 |
| 2019 Mirai | – | – | Not rated | 0 | 4 |
| 2018 Mirai | – | – | Not rated | 0 | 2 |
| 2017 Mirai | – | – | Not rated | 0 | 4 |
| 2016 Mirai | – | – | Not rated | 0 | 2 |
Sources: EPA, NHTSA, Transport Canada, Wikimedia Commons. Not affiliated with NHTSA, the EPA or Toyota. How we calculate this →