7588-2. Steps to take in an emergency
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
■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. 707) 
■ When replacing 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 retailer or Toyota authorized 
repairer, or any reliable repairer. 
         
        
        7849-2. Customization
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
■Smart entry & start system and wireless remote control 
(P. 283, 293)
■Smart entry & start system (P. 293)
*: If equipped
■
Wireless remote control (P. 283)
■Outside rear view mirrors (P. 350)
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