1905-2. Driving procedures
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Parking the vehicle during cold weather
●Water may automatically purge from the tailpipe, even when the fuel cell
system is off, in order to prevent liquid in the fuel cell stac k, hydrogen pipe-
lines, etc., from freezing.
● It is normal to hear hissing and other sounds during purge. ( P. 88)
● The H
2O indicator on the meter will illuminate during purge.
■ Water release function during cold weather
In the following cases, the fuel cell system automatic drainage may not oper-
ate. It may not be possible to start the fuel cell system due t o the fuel cell
stack, hydrogen pipes, etc, being frozen.
• When transporting or towing the vehicle in frozen areas
• When the 12-volt battery terminals are disconnected and remain as such
in frozen areas
Operate the water release function with the following procedure beforehand
to prevent water from freezing in the system.
Turn the power switch to ON mode and press the H
2O switch.
Check that the H
2O indicator on the meter turns on.
While depressing the brake, press the power switch to start the fuel cell
system.
Check that the “READY” indicator turns on.
Press the power switch to stop the fuel cell system.
The water release is automatically performed. During water purg e, the
H
2O indicator turns on. (Longer than normal water purge)
■ Conditions affecting operation
P. 146
■ Notes for the entry function
P. 147
■ If the fuel cell system does not start
●The immobilizer system may not have been deactivated. ( P. 78)
Contact your Toyota dealer.
● Check that the shift position is P. ( P. 193)
The fuel cell system cannot be started when the shift position is N.
If P position is not selected, “Shift to P position to start” w ill be displayed on
the multi-information display.
● Check that the fuel door is closed.
When the fuel door is open, the fuel cell system cannot be star ted.
Close the fuel door before starting the system. ( P. 216)
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