752-1. Fuel cell vehicle
Owners Manual_USA_M62084_en
2
Fuel cell system
Tailpipe
*: If equipped
■Sounds unique to the fuel cell vehicle
Due to the design of y our fuel cell vehicle, there are various relays, valves
and pumps which under normal driving conditions will produce so unds. This
is a normal characteristic of th e vehicle and does not indicate a malfunction.
Furthermore, these sounds may differ based on usage environment or con-
dition.
■Maintenance, repair, recycling,
and disposal
Contact your Toyota dealer regard- ing maintenance, repair, recycling,
and disposal. Do n
ot dispose of the
vehicle or any of its components
Noticeable soundsSource of the sounds
Clunking, clicking and
clackingOperation of relays and hydrogen tank valves
(Sounds may be heard wh en starting or stop-
ping the fuel cell system.)
Knocking
The parking lock is engaged
(Sounds may be heard when pressing the P
position switch or stopp ing the fuel cell sys-
tem.)
Whooshing, squealingGas is flowing through the nozzle and valves
(Sounds may be heard when filling the fuel.)
High pitch sound
Pulsing sound
Whooshing sound
Operation of the pumps
(In particular, sounds may be heard when
starting the fuel cell s ystem, accelerating from
a stop, or pressing the H
2O switch. The sound
may be louder when in Br mode or when the
vehicle decelerates during dynamic radar
cruise control.)
Humming sound
High pitch soundOperation of the motor
(In particular, sounds may be heard when
accelerating or decelerating.)
Blowing and draining
sound
Exhaust water or air is being purged
May also occur periodically while parked when
it is cold to p revent freezing.
(Sounds may be hear d when vehicle is
stopped, fuel cell system is stopped or while
parked)
