These instructions apply to the Toyota Mirai Mk1 (JPD10) 2015-2020.
For other models, please choose your vehicle here.
After a service, the Toyota Mirai (JPD10, 2015–2020) — Toyota’s hydrogen fuel-cell saloon — shows a maintenance reminder that you clear from the central touchscreen in under a minute. Unlike older Toyotas with a trip-button sequence, the Mirai resets entirely through its Maintenance System menu. This guide shows how.
One thing to be clear about from the start: the Mirai has no combustion engine and therefore no engine oil, so this is not an oil-life reset in the way a petrol or diesel car has. It is a scheduled-maintenance reminder — a time and distance prompt that flags when the next service in the car’s plan is due. When that service has been carried out, you zero the counter through the Maintenance System menu so the countdown to the next one starts again.
What the Reminder Means
The maintenance reminder is mileage/time-based and simply flags that the next scheduled service is due. It is not a fault — reset it once the service work has been carried out.
What a Fuel-Cell Service Actually Covers
Because there is no oil to change, a Mirai service looks different from a conventional car’s. Exactly what is done follows the car’s own maintenance schedule, but on a hydrogen fuel-cell vehicle the typical scheduled items are things such as inspection of the fuel-cell stack and its high-voltage system, the hydrogen supply and tank checks, replacement of cabin (air-conditioning) and any air/ion filters the system uses, brake fluid and the coolant that manages the stack and power electronics, plus the usual brakes, tyres and suspension inspection. If you want the precise items and intervals for your car, check the maintenance section of your owner’s handbook — the reminder you reset here is the schedule prompt for that work, whatever it includes on a given visit.
Getting Ready
Only reset once the scheduled service has genuinely been carried out — clearing the reminder early just hides a due service. Park on level ground with the parking brake set. You need the car in ignition-on, not in READY-to-drive: on the Mirai you reach ignition-on by pressing the power button without your foot on the brake. No tools, code reader or dealer visit are required — the reset is done entirely on the central display.
How to Reset the Mirai Maintenance Reminder
- Turn the ignition on (press START without your foot on the brake to reach ON, or simply power up the car ready to drive).
- On the central display, open the settings/vehicle menu and select “Maintenance System”.
- Follow the on-screen instructions to reset the maintenance data.
- Wait until “Initialisation Completed” is shown — the reminder is reset.
If It Didn’t Reset
- Make sure you confirmed the reset — the screen shows “Initialisation Completed” only when it has taken.
- If the menu isn’t visible, scroll the vehicle-settings / maintenance section of the multimedia display — wording varies slightly by software version.
- Reach ignition-on, not READY — if you pressed the brake and powered up ready to drive, some software will not complete the reset; power down and switch to ignition-on only.
- If the first attempt fails, power the car fully off, wait a few seconds and work through the menu again from the start.
What Happens Next
Once “Initialisation Completed” appears, the maintenance counter is back to a full interval and the reminder stops showing at start-up. Nothing about the fuel-cell stack, the hydrogen system or the high-voltage battery changes — the reset only touches the scheduled-maintenance timer. Any genuine warning light that was on before will still be on afterwards, because those are separate from the maintenance reminder.
How Often It Comes Up
Reset the reminder once per service, straight after the scheduled work is finished. The Mirai’s service intervals are set by time and distance in its maintenance schedule and can vary by market, so follow the interval in your owner’s handbook or the one your servicer works to rather than assuming a fixed figure. Doing the reset at every service keeps the prompt aligned with the real schedule.
Frequently Asked Questions
Does resetting the reminder affect the fuel-cell system?
No — it only clears the scheduled-maintenance counter. It has nothing to do with the hydrogen or high-voltage systems.
Is there an engine-oil-life reset on the Mirai?
No — the Mirai is a hydrogen fuel-cell car with no combustion engine and no engine oil, so there is no oil-life to reset. The Maintenance System menu resets the scheduled-service reminder instead.
Is there a trip-button shortcut like other Toyotas?
No — the Mirai uses the touchscreen “Maintenance System” menu rather than the old hold-the-trip-button method.
Why does the reminder come back?
If it returns immediately, the reset didn’t complete — repeat and wait for “Initialisation Completed”.
What does a Mirai service include if there’s no oil?
Typically inspection of the fuel-cell and high-voltage system, hydrogen supply checks, cabin/air filters, brake fluid, coolant and the usual brakes, tyres and suspension — follow your handbook for the exact items.
Is the reminder the same as a warning light?
No — the maintenance reminder is a schedule prompt. A fuel-cell, hybrid-system or other warning light is a fault and should be investigated. After tyre work you may also need to relearn the tyre pressures — see our Mirai TPMS reset guide.
If a warning light appeared alongside the maintenance message, you can look up what a Toyota code means on autodtcs.com.
Independent guide — not affiliated with Toyota. Always follow your official service manual and safety precautions. Read our full disclaimer.