Page 518 of 744

5186-1. Using the air conditioning system and defogger
PRIUS PHV_OM_OM47A89E_(EE)■When using the Remote Air Conditioning System
A charging message will be displayed on the multi-information display. Differ-
ent messages will be displayed depending on when the Remote Air Condi-
tioning System was started (after charging or during charging).
■While the Remote Air Conditioning System is operating
●Depending on the operating condition of the Remote Air Conditioning Sys-
tem, the electric fan may spin and an operating noise may be heard.
However, this does not indicate a malfunction.
●The Remote Air Conditioning System may stop operating temporarily if
other features that use electricity (for example, the seat heater, lights, wind-
shield wipers) are in operation or if the charge level of the 12-volt battery
becomes low.
●The headlights, windshield wiper, combination meter, etc. will not operate
while the Remote Air Conditioning System is operating.
■Electronic key battery depletion
P. 266
■When the electronic key battery is fully depleted
P. 616
■Customization
Setting (e.g. Operation using “A/C” on the wireless remote control) can be
changed. (Customizable features P. 708)
Page 575 of 744

5757-3. Do-it-yourself maintenance
PRIUS PHV_OM_OM47A89E_(EE)
7
Maintenance and care
■When opening the cover of the positive (+) battery terminal
■ Before recharging
When recharging, the 12-volt battery produces hydrogen gas which is flam-
mable and explosive. Therefore, obser ve the following precautions before
recharging:
● If recharging with the 12-volt battery installed on the vehicle, be sure to dis-
connect the ground cable.
● Make sure the power switch on the charger is off when connecting and dis-
connecting the charger cables to the 12-volt battery.
■ After recharging/reconnecting the 12-volt battery
● Unlocking the doors using the smart entry & start system may not be possi-
ble immediately after reconnecting the 12-volt battery. If this happens, use
the wireless remote control or the mechanical key to lock/unlock the doors.
● Start the hybrid system with the power switch in ACCESSORY mode. The
hybrid system may not start with the power switch turned off. However, the
hybrid system will operate normally from the second attempt.
● The power switch mode is recorded by the vehicle. If the 12-volt battery is
reconnected, the vehicle will return the power switch mode to the status it
was in before the 12-volt battery was disconnected. Make sure to turn off
the power before disconnect the 12-volt battery. Take extra care when con-
necting the 12-volt battery if the power switch mode prior to discharge is
unknown.
If the system will not start even after multiple attempts at all methods above,
contact any authorized Toyota dealer or repairer, or another duly qualified and
equipped professional.
While pushing the portion shown in the
illustration from both sides, lift the end of
the cover up.
Page 617 of 744

6177-3. Do-it-yourself maintenance
PRIUS PHV_OM_OM47A89E_(EE)
7
Maintenance and care
Remove the depleted battery.
When removing the cover, if the
battery cannot be seen due to the
electronic key module attaching to
the upper cover, remove the elec-
tronic key module from the cover
so that the battery is visible as
shown in the illustration.
When removing the battery, use a
screwdriver of an appropriate size.
Insert a new battery with the “+” terminal facing up.
When installing, reverse the steps listed.
■Use a CR2032 lithium battery
●Batteries can be purchased at any authorized Toyota dealer or repairer, or
another duly qualified and equipped professional, local electrical appliance
shops or camera stores.
●Replace only with the same or equivalent type recommended by the manu-
facturer.
●Dispose of used batteries according to the local laws.
■If the electronic key battery is depleted
The following symptoms may occur:
●The smart entry & start system and wireless remote control will not function
properly.
●The operational range will be reduced.
3
4
Page 618 of 744
6187-3. Do-it-yourself maintenance
PRIUS PHV_OM_OM47A89E_(EE)
WARNING
■Removed battery and other parts
These parts are small and if swallowed by a child, they can cause choking.
Keep away from children. Failure to do so could result in death or serious
injury.
■ Certification for the smart entry & start system
CAUTION
RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT
TYPE.
DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS
NOTICE
■ For normal operation after replacing the battery
Observe the following precautions to prevent accidents:
● Always work with dry hands.
Moisture may cause the battery to rust.
● Do not touch or move any other component inside the remote control.
● Do not bend either of the battery terminals.
Page 678 of 744
6788-2. Steps to take in an emergency
PRIUS PHV_OM_OM47A89E_(EE)
If the electronic key does not operate
properly
Use the mechanical key ( P. 265) in order to perform the following
operations:
Locks all the doors
Closes the windows (turn and
hold)*
Unlocks all the doors
Opens the windows (turn and
hold)*
*: These settings must be custom-
ized at any authorized Toyota
dealer or repairer, or another duly
qualified and equipped profes-
sional. ( P. 708)
If communication between the electronic key and vehicle is inter-
rupted ( P. 282) or the electronic key cannot be used because the
battery is depleted, the smart entry & start system and wireless
remote control cannot be used. In such cases, the doors can be
opened and the hybrid system can be started by following the pro-
cedure below.
Locking and unlocking the doors
1
2
3
4
Page 685 of 744

6858-2. Steps to take in an emergency
PRIUS PHV_OM_OM47A89E_(EE)
8
When trouble arises
■When recharging or replacing the 12-volt battery
●In some cases, it may not be possible to unlock the doors using the smart
entry & start system when the 12-volt battery is discharged. Use the wire-
less remote control or the mechanical key to lock or unlock the doors.
● The hybrid system may not start on the first attempt after the 12-volt battery
has recharged but will start normally after the second attempt. This is not a
malfunction.
● It may be impossible to unlock the charging port lid or locking and unlocking
the charging connector immediately after the 12-volt battery is reconnected.
In this case, carry the electronic key on your person and operate the
charging port lid or charging connector lock switch again.
● The power switch mode is memorized by the vehicle. When the 12-volt bat-
tery is reconnected, the system will return to the mode it was in before the
12-volt battery was discharged. Before disconnecting the 12-volt battery,
turn the power switch off.
If you are unsure what mode the power switch was in before the 12-volt bat-
tery discharged, be especially careful when reconnecting the 12-volt battery.
● If the 12-volt battery discharges while the shift position is in P, it may not be
possible to shift the shift position to other positions. In this case, the vehicle
cannot be towed without lifting both front wheels because the front wheels
will be locked. ( P. 634)
■ When exchanging the 12-volt battery
●Use a 12-volt battery that conforms to European regulations.
● Use a 12-volt battery that the case size is same as the previous one (LN1),
20 hour rate capacity (20HR) is equi valent (45Ah) or greater, and perfor-
mance rating (CCA) is equivalent (295A) or greater.
• If the sizes differ, the 12-volt battery cannot be properly secured.
• If the 20 hour rate capacity is low, even if the time period where the vehi- cle is not used is a short time, the 12-volt battery may discharge and the
hybrid system may not be able to start.
● For details, consult any authorized Toyota dealer or repairer, or another duly
qualified and equipped professional.
Page 710 of 744
7109-2. Customization
PRIUS PHV_OM_OM47A89E_(EE)■
Smart entry & start system and wireless remote control
(P. 269, 279)
■Smart entry & start system (P. 279)
*: If equipped
■
Wireless remote control (P. 269)
■Outside rear view mirrors (P. 305)
FunctionDefault
settingCustomized
setting
Operation signal
(emergency flashers)OnOff–OO
Open door reminder buzzer
(When locking the vehicle)OnOff––O
Time elapsed before the auto-
matic door lock function is
activated if a door is not
opened after being unlocked
30 seconds
60 seconds
––O
120 seconds
123
FunctionDefault
settingCustomized
setting
Smart entry & start system On Off – O O
Number of consecutive door
lock operations
*2 timesAs many as
desired––O
123
FunctionDefault
settingCustomized
setting
Wireless remote control On Off – – O
123
FunctionDefault
settingCustomized
setting
Automatic mirror folding and
extending operationLinked to the
locking/
unlocking of
the doorsOff
––O Linked to
operation of
the power
switch
123
Page 711 of 744
7119-2. Customization
PRIUS PHV_OM_OM47A89E_(EE)
9
Vehicle specifications
■Power windows (P. 307)
■Reverse warning buzzer (P. 336)
■Turn signal lever (P. 339)
FunctionDefault
settingCustomized
setting
Mechanical key linked opera-
tion (open)Off On – – O
Mechanical key linked opera-
tion (close)Off On – – O
Wireless remote control linked
operation (open)Off On – – O
Wireless remote control linked
operation (close)Off On – – O
Mechanical key, wireless
remote control linked opera-
tion signal (buzzer)On Off – – O
123
FunctionDefault
settingCustomized
setting
Signal (buzzer) when the shift
position is in RSingleIntermittent––O
123
FunctionDefault
settingCustomized
setting
Times of flashing of the lane
change signal flashers3Off
––O 5
7
123