2020 TOYOTA PRIUS PLUG-IN HYBRID battery

3544-5. Opening and closing the windows
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
■Door lock linked window operation
●The power windows can be opened and closed using the mechanical key.
*
(P. 751)
●The power windows can be opened and closed using the wireless remote
control.
* (P. 283)
*: These settings must be customized at any authorized Toyota retailer or
Toyota authorized repairer, or any reliable repairer.
■When the 12-volt battery is disconnected
The window lock switch is disabled. If necessary, press the window lock
switch after reconnecting the 12-volt battery.
■Power window open reminder function
The buzzer sounds and a message is shown on the multi-information display
in the instrument cluster when the power switch is turned off and the driver’s
door is opened with the power windows open.
■Customization
Settings (e.g. linked door lock operation) can be changed.
(Customizable features: P. 782)

3615-1. Before driving
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
5
Driving
■Breaking in your new Toyota
To extend the life of the vehicle, observing the following precautions is recom-
mended:
●For the first 300 km (200 miles):
Avoid sudden stops.
●For the first 1000 km (600 miles):
• Do not drive at extremely high speeds.
• Avoid sudden acceleration.
• Do not drive at a constant speed for extended periods.
■Operating your vehicle in a foreign country
Comply with the relevant vehicle registration laws and confirm the availability
of the correct fuel. (P. 772)
■For efficient use
●Shift the shift position to D when driving.
In the N position, the gasoline engine operates but electricity cannot be gen-
erated. The hybrid battery (traction battery) will discharge, requiring unnec-
essary engine power to charge.
●Drive your vehicle smoothly.
Avoid abrupt acceleration and deceleration. Gradual acceleration and decel-
eration will make more effective use of the electric motor (traction motor)
without having to use gasoline engine power.
●Avoid repeated acceleration.
Repeated acceleration consumes hybrid battery (traction battery) power,
resulting in poor acceleration. Battery power can be restored by driving with
the accelerator pedal slightly released.
●Shift the shift position to P when parking.
In the N position, the hybrid battery (traction battery) does not charge. Leav-
ing the shift position in the N position for an extended period of time may
discharge the hybrid battery (traction battery). The vehicle cannot run if the
hybrid battery (traction battery) is discharged.

3755-2. Driving procedures
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
5
Driving
Modes can be changed by pressing the power switch with the brake
pedal released. (The mode changes each time the switch is pressed.)
Off
The emergency flashers can be
used.
ACCESSORY mode
Some electrical components such
as the audio system can be used.
“Accessory” is displayed on the
main display.
ON mode
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. 106
■Electronic key battery depletion
P. 280
■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 -30C [-22F]) 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.
Changing power switch modes
1
2
3

3765-2. Driving procedures
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
■Conditions affecting operation
P. 296
■Note for the entry function
P. 297
■If the hybrid system does not start
●The immobilizer system may not have been deactivated. (P. 7 4 )
Contact any authorized Toyota retailer or Toyota authorized repairer, or any
reliable repairer.
●The charging cable may be connected to the vehicle. (P. 161)
●If a message related to start-up is shown on the multi-information display,
read the message and follow the instructions.
■If the “READY” indicator does not come on
In the event that the “READY” indicator does not come on even after perform-
ing the proper procedures for starting the vehicle, contact any authorized
Toyota retailer or Toyota authorized repairer, or any reliable repairer immedi-
ately.
■If the hybrid system is malfunctioning
P. 109
■If the electronic key battery is depleted
P. 688
■Operation of the power switch
●If the switch is not pressed shortly and firmly, the power switch mode may
not change or the hybrid system may not start.
●If attempting to restart the hybrid system immediately after turning the power
switch off, the hybrid system may not start in some cases. After turning the
power switch off, please wait a few seconds before restarting the hybrid sys-
tem.
■Automatic P position selection function
P. 382
■When the shift control system malfunctions
When attempting to turn the power switch off while there is a malfunction in
the shift control system, the power switch mode may change to ACCES-
SORY mode. In this case, ACCESSORY mode may be turned off by applying
the parking brake and pressing the power switch again. If there is a malfunc-
tion in the system, have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repairer immediately.

3785-2. Driving procedures
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
NOTICE
■To prevent 12-volt battery discharge
● Do not leave the power switch in ACCESSORY or ON mode for long peri-
ods of time without the hybrid system on.
● If “Accessory”, “Ignition ON” or mileage display (P. 224) is displayed on
the main display while the hybrid system is not operating, the power switch
is not off. Exit the vehicle after turning the power switch off.
■ When starting the hybrid system
If the hybrid system becomes difficult to start, have your vehicle checked by
any authorized Toyota retailer or Toyota authorized repairer, or any reliable
repairer immediately.
■ Symptoms indicating a malfunction with the power switch
If the power switch seems to be operating somewhat differently than usual,
such as the switch sticking slightly, there may be a malfunction. Contact any
authorized Toyota retailer or Toyota authorized repairer, or any reliable
repairer immediately.

3825-2. Driving procedures
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
■Reverse warning buzzer
When shifting into R, a buzzer will sound to inform the driver that the shift
position is in R.
■Restraining sudden start (Drive-Start Control)
P. 360
■Automatic P position selection function
●If the power switch is on and the shift position is not already P, completely
stopping the vehicle and pressing the power switch causes the shift position
to automatically switch to P and the power switch to turn off
*.
●The shift position may also automatically switch to P if one of the following
conditions is detected while the vehicle is stopped by dynamic radar cruise
control with full-speed range.
• Driver’s seat belt is not fastened
• Driver’s door is opened
• Approximately 3 minutes elapse after the vehicle stopped
*: If the power switch is pressed when driving at very low speeds (for exam-
ple, just before the vehicle stops), the shift position may automatically
switch to P. Press the power switch after completely stopping the vehicle to
prevent unexpected sudden stopping of the vehicle.
■If the shift position cannot be shifted from P
There is a possibility that the 12-volt battery is discharged. Check the 12-volt
battery in this situation. (P. 755)
■About engine braking
When shift position B is selected, releasing the accelerator pedal will apply
engine braking.
●When the vehicle is driven at high speeds, compared to ordinary gasoline-
fueled vehicles, the engine braking deceleration is felt less than that of other
vehicles.
●The vehicle can be accelerated even when shift position B is selected.
If the vehicle is driven continuously in the B position, fuel efficiency will
become low. Usually, select the D position.
■After recharging/reconnecting the 12-volt battery
P. 645

3845-2. Driving procedures
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
NOTICE
■Hybrid battery (traction battery) charge
If the shift position is in N, the hybrid battery (traction battery) will not be
charged. To help prevent the battery fr om discharging, avoid leaving the N
position selected for an extended period of time.
■ Situations where shift control system malfunctions are possible
If any of the following situations occurs, shift control system malfunctions
are possible.
Immediately stop the vehicle in a safe place on level ground, apply the park-
ing brake, and then contact any authorized Toyota retailer or Toyota autho-
rized repairer, or any reliable repairer.
● When the warning message indicating the shift control system appears on
the multi-information display.
● The display indicates that no shift position is selected for more than a few
seconds.
■ Notes regarding shift lever and P position switch operation
Avoid repeatedly operating the shift lever and P position switch in quick suc-
cession.
The system protection function may activate and it will not be temporarily
possible to shift the shift position other than P. If this happens, please wait
for approximately 20 seconds before attempting to change the shift position
again.

3895-3. Operating the lights and wipers
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
5
Driving
■ Automatic light off system
● When the light switch is in the or position: The headlights turn
off automatically if the power switch is turned to ACCESSORY mode or
turned off.
● When the light switch is in the position: The headlights and all lights
turn off automatically if the power switch is turned to ACCESSORY mode or
turned off.
To turn the lights on again, turn the power switch to ON mode, or turn the light
switch to the position once and then back to the or posi-
tion.
■ Automatic headlight leveling system
The level of the headlights is automatically adjusted according to the number
of passengers and the loading condition of the vehicle to ensure that the
headlights do not interfere with other road users.
■ Light reminder buzzer
A buzzer sounds when the power switch is turned off and the driver’s door is
opened while the lights are turned on.
■ 12-volt battery-saving function
In order to prevent the vehicle 12-volt battery from discharging, if the light
switch is in the position when the power switch turned off the 12-volt
battery saving function will operate and automatically turn off all the lights
after approximately 20 minutes.
When any of the following are performed, the 12-volt battery-saving function
is canceled once and then reactivated. All the lights will turn off automatically
20 minutes after the 12-volt battery-saving function has been reactivated:
● When the headlight switch is operated
● When a door is opened or closed
■ If “Headlight System Malfunction Visit Your Dealer” is displayed on the
multi-information display
The system may be malfunctioning. Have the vehicle inspected by any autho-
rized Toyota retailer or Toyota authorized repairer, or any reliable repairer.
■ Customization
Settings (e.g. light sensor sensitivity) can be changed.
(Customizable features: P. 782)