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Noticeable sounds
• Humming sound
• High pitch sound
Blowing and draining sound
■
Regenerative braking
In the following situations, the vehicle generates electricity from the decelera-
tion of the vehicle while driving.
●
The accelerator pedal is released while driving with the shift position in D.
●
The brake pedal is depressed while driving with the shift position in D.
■
Charging the traction battery
Because electricity generated by the fuel cell stack and regenerative braking
charges the traction battery, the battery does not need to be charged from an
outside source. However, if the vehicle is left parked for a long time, the trac-
tion battery will slowly discharge. For this reason, be sure to drive the vehicle
at least once every few months for at least 30 minutes or 10 miles (16 km).
If the traction battery becomes fully discharged and you are unable to start
the fuel cell system, contact your Toyota dealer.
■
Charging the 12-volt battery
→P. 403
■
Parking
Because there is no engine sound or vibration, it is easy to mistake the fuel
cell vehicle for being off when it is actually still running, as indicated by the
"READY" indicator being illuminated. For safety, make sure to always shift the
shift position to P and apply the parking brake when parked.
■
Maintenance, repair, recycling, and disposal
Contact your Toyota dealer regarding maintenance, repair, recycling, and dis-
posal. Do not dispose of the vehicle or any of its components yourself.
2. Fuel cell vehicle
Source of the sounds
Operation of the motor
Sounds may come from the motor com-
partment.
(In particular, sounds may be heard when
accelerating or decelerating.)
Exhaust water or air is being purged
Sounds may come from the rear of the
vehicle.
May also occur periodically while parked
when it is cold to prevent freezing.
(Sounds may be heard when vehicle is
stopped, fuel cell system is stopped, park-
ing.)
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Troubleshooting
