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Research · Subcompact Cars

2018 Toyota MiraiRecalls, problems, MPG & safety

NHTSA lists 0 safety recalls and 2 owner complaints for the 2018 Toyota Mirai. Most complaints involve fuel/propulsion system (1) and service brakes (1). The EPA rates it 67 mpg combined.

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Combined MPG
67mpg
EPA · 1 version
NHTSA overall
—
Not rated by NCAP
Safety recalls
0campaigns
NHTSA
Owner complaints
2
Top: fuel/propulsion system
Fuel cost / yr
—
No EPA estimate
01 —Recalls

Safety recalls

NHTSA campaigns for this model year
0 recalls found in NHTSA data for the 2018 Toyota Mirai as of Oct 28, 2026.
Data from NHTSA Recalls API · synced Oct 28, 2026NHTSA vehicle page
02 —Complaints

Owner complaints by component

2 complaints filed with NHTSA · Nov 2025 – Mar 2026
  1. Fuel/propulsion system1
  2. Service brakes1
  3. Forward collision avoidance1
  4. Other / unknown1

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.

By model year

Complaints for each Mirai model year we’ve synced.

View as table
Model yearNHTSA complaints
20162
20174
20182
20194
20201
Crashes reported
0
Fires reported
0
Injuries reported
0
Deaths reported
0
Data from NHTSA Complaints API · synced Oct 28, 2026NHTSA vehicle page
03 —Common problems

What owners report most

Verbatim excerpts from NHTSA complaints, by component

Fuel/propulsion system

1 report
“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 extended periods. In addition, the price of hydrogen fuel has increased dramatically (approximately three times higher than when the vehicle was purchased). Because of these issues the vehicle often becomes unusable despite still requiring monthly loan payments. Toyota marketed the vehicle as practical to operate in California, but in reality the hydrogen infrastructure is unreliable and frequently unavailable, making the vehicle difficult or impossible to use. This situation creates a safety concern because drivers may be unable to refuel when needed.”
Owner complaint to NHTSAFiled Mar 5, 2026Unknown or other, Fuel/propulsion systemODI 11722227

Service brakes

1 report
“On several occasions the Toyota Mirai would slam on the brakes on its own while at a considerable speed with no other cars around. It was very scary and concerning traveling at high speeds and the brakes being applied abruptly automatically.”
Owner complaint to NHTSAFiled Nov 11, 2025Service brakes, Forward collision avoidanceODI 11698689

Forward collision avoidance

1 report
Send a problem to a mechanic on findmechanic.ai
Data from NHTSA Complaints API (owner reports, unverified) · synced Oct 28, 2026
04 —Key specs

Engines, transmissions & drive

1 version rated by the EPA
EPA class
Subcompact Cars
Engines
fcv
Transmissions
Automatic (variable gear ratios)
Drive
Front-Wheel Drive
Fuel
Hydrogen
EV range
312 mi (EPA)

Towing, payload and dimensions aren’t in the EPA or NHTSA data, so we don’t list them.

Data from EPA fueleconomy.gov · synced Oct 28, 2026EPA listing
05 —Fuel economy

EPA fuel economy by version

City / highway / combined, annual fuel cost and CO₂
EPA
VersionCityHwyComb.Fuel / yrCO₂ g/mi
Mirai
Auto (variable gear ratios) · Front-Wheel Drive
676767——
  • Mirai
    Auto (variable gear ratios)
    67 city · 67 hwy
    67
    mpg comb.
Estimate your fuel costCost of ownership
Data from EPA fueleconomy.gov · synced Oct 28, 2026 · Fuel cost is EPA’s annual estimate (15,000 mi, 55% city)
06 —Safety

NHTSA 5-Star Safety Ratings

1 tested variant
NHTSA has not published 5-Star Safety Ratings for the 2018 Toyota Mirai as of Oct 28, 2026.
Data from NHTSA NCAP Safety Ratings API · synced Oct 28, 2026Vehicle 12352
07 —Maintenance

Maintenance basics

General guidance, not the OEM schedule. Check your owner’s manual.
General guidance
ItemMilesTimeNote
Engine oil & filter5,000–10,000 mi6–12 monthsFollow the oil-life monitor if fitted
Tire rotation5,000–7,500 miEvery oil changeCheck pressure monthly
Engine air filter15,000–30,000 mi1–2 yearsSooner in dusty areas
Cabin air filter15,000–25,000 mi1–2 years
Brake fluid—2–3 yearsAbsorbs moisture over time
Coolant60,000–100,000 mi5–10 yearsLong-life coolants last longer
Spark plugs60,000–100,000 mi—Iridium/platinum plugs at the long end
12V battery—3–5 yearsHeat shortens battery life
  • Engine oil & filter5,000–10,000 mi
    6–12 months
  • Tire rotation5,000–7,500 mi
    Every oil change
  • Engine air filter15,000–30,000 mi
    1–2 years
  • Cabin air filter15,000–25,000 mi
    1–2 years
  • Brake fluid—
    2–3 years
  • Coolant60,000–100,000 mi
    5–10 years
  • Spark plugs60,000–100,000 mi
    —
  • 12V battery—
    3–5 years
Typical intervals for modern cars. Severe service (towing, short trips, extreme heat or cold) shortens them.
09 —FAQ

2018 Mirai questions

How many recalls does the 2018 Toyota Mirai have?

0 recalls found in NHTSA data as of Oct 28, 2026.

What are the most common 2018 Toyota Mirai problems?

Owners filed 2 complaints with NHTSA. The most-cited components are fuel/propulsion system (1), service brakes (1), forward collision avoidance (1). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.

What MPG does the 2018 Toyota Mirai get?

The EPA rates the 2018 Toyota Mirai at 67 mpg combined, depending on engine and drivetrain (1 version rated).

Data from NHTSA & EPA · synced Oct 28, 2026