oil level TOYOTA MIRAI 2021 Warranties & Maintenance Guides (in English)

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Fuel Cell Air Filter
Inspect or replace at specified intervals.
When performing inspections, check for
dama
ge, excessive wear and oiliness,
and replace if necessary.
Fuel Cell Coolant
Inspect at specified intervals. When performing
inspections, check that the coolant level is
between the “FULL” and “LOW” lines on the
see-through reservoir tank.
Notice: A qualified technician should perform
this operation.
Use the following product:
“Toyota Genuine FC Stack Coolant.”
• In order to safely cool the fuel cell
stack, which is at high voltages, the
fuel cell stack coolant is an exclusive
high insulation product.
• Never use water or other kinds of coolant s
as they will cause damage.
• Coolant changes are unnecessary .
• Do not reuse coolant that has been removed
from the radiator.
• Coolant is colorless.
• Consult your Toyota dealer about
replenishing the fuel cell stack coolant.
Fuel Cell HV Battery
Cooling Intake Filter
Inspect and clean at specified intervals.
Refer to “Cleaning the traction battery air
intake vents and filters”
in the “Maintenance
and Care” section of the Owner’s Manual
for cleaning procedures.
Hybrid Transaxle Fluid
Inspect level and replace at specified intervals.
When performing inspections, check each
component for signs of leakage. If you
discover any leakage, have it repaired by a
qualified technician immediately.
Hydrogen Sensors
Inspect both hydrogen sensors at specified
intervals. This inspection should be performed
using calibration gas at a concentration of
1.3% hydrogen.
Notice: A qualified technician should perform
this operation.
Hydrogen Tank (with Valve)
NOTE: Replace every 15 years or
180 months, whichever comes first.
Notice: A qualified technician should
perform this opera
tion.

EXPLANATION OF MAINTENANCE ITEMS
Maintenance Log
MAINTENANCE