Toyota Prius Prime 2020 Manual page 338

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338
5-2. Driving procedures
Changing power switch modes
Modes can be changed by pressing the power switch with the brake
pedal released. (The mode changes each time the switch is pressed.)
Off
1
The emergency flashers can be
used.
ACCESSORY mode
2
Some electrical components such
as the audio system can be used.
"Accessory" is displayed on the
main display.
ON mode
3
All electrical components can be
used.
"Ignition ON" is displayed on the
main display.
Auto power off function
If the vehicle is left in ACCESSORY mode for more than 20 minutes or ON
mode (the hybrid system is not operating) for more than an hour with the shift
position in P, the power switch will automatically turn off. However, this func-
tion cannot entirely prevent the 12-volt battery discharge. Do not leave the
vehicle with the power switch in ACCESSORY or ON mode for long periods
of time when the hybrid system is not operating.
Sounds and vibrations specific to a hybrid vehicle
P. 96
Electronic key battery depletion
P. 276
When the ambient temperature is low, such as during winter driving con-
ditions
When starting the hybrid system, the flashing time of the "READY" indicator
may be long. Leave the vehicle as it is until the "READY" indicator is steady
on, as steady means the vehicle is able to move.
When the hybrid battery (traction battery) is extremely cold (below approxi-
mately -22°F [-30°C]) under the influence of the outside temperature, it may
not be possible to start the hybrid system. In this case, try to start the hybrid
system again after the temperature of the hybrid battery increases due to
the outside temperature increase etc.

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