If The Fuel Cell System Will Not Start - Toyota Mirai 2017 Owner's Manual

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8-2. Steps to take in an emergency

If the fuel cell system will not start

Reasons for the fuel cell system not starting vary depending on
the situation. Check the following and perform the appropriate
procedure:
The fuel cell system will not start even though the correct start-
ing procedure is being followed. (→P. 172)
One of the following may be the cause of the problem:
● The electronic key may not be functioning properly. (→P. 398)
● There may not be sufficient fuel in the vehicle's tank.
Refuel the vehicle.
● The fuel door may be open. (→P. 201)
● There may be a malfunction in the immobilizer system.
(→P. 72)
● There may be a malfunction in the shift control system.
● The fuel cell system may be malfunctioning due to an electrical
problem such as electronic key battery depletion or a blown fuse.
However, depending on the type of malfunction, an interim mea-
sure is available to start the fuel cell system. (→P. 177, 397)
● The electronic key may be in battery-saving mode. (→P. 133)
*
: It may not be possible to shift the shift position from P to another position.
The interior lights and headlights are dim, or the horn does not
sound or sounds at a low volume.
One of the following may be the cause of the problem:
● The 12-volt battery may be discharged. (→P. 401)
● The 12-volt battery terminal connections may be loose or corroded.
(→P. 328)
*
(→P. 378)