Page 415 of 580

415 4-3. Do-it-yourself maintenance
4
Maintenance and care
PRIUS +_OM_OM47821E_(EE)
Before recharging
When recharging, the 12-volt battery produces hydrogen gas which is flam-
mable and explosive. Therefore, observe the following precautions before
recharging:
If recharging with the 12-volt battery installed on the vehicle, be sure to
disconnect the ground cable.
Make sure the power switch on the charger is off when connecting and
disconnecting 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
possible immediately after reconnecting the 12-volt battery. If this hap-
pens, 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 bat-
tery 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 connecting the 12-volt battery if the “POWER” switch
mode prior to discharge is unknown.
Restart the hybrid system, depress the brake pedal, and confirm that it is
possible to shift into each shift position.
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.
Page 431 of 580
431 4-3. Do-it-yourself maintenance
4
Maintenance and care
PRIUS +_OM_OM47821E_(EE)
Use a CR1632 lithium battery
Batteries can be purchased at any authorized Toyota dealer or repairer,
or another duly qualified and equipped professional, local electrical appli-
ance shops or camera stores.
Replace only with the same or equivalent type recommended by the
manufacturer.
Dispose of used batteries according to 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 func-
tion properly.
The operational range will be reduced.
Remove the depleted battery.
Insert a new battery with the
“+” terminal facing up.
When installing, reverse the steps listed.
ITO43P194
STEP 3
STEP 4
Page 432 of 580
432 4-3. Do-it-yourself maintenance
PRIUS +_OM_OM47821E_(EE)
CAUTION
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
RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT
TYPE. DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUC-
TIONS.
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 519 of 580
5
519
5-2. Steps to take in an emergency
When trouble arises
PRIUS +_OM_OM47821E_(EE)
If the electronic key does not operate properly
Locking and unlocking the doors
Use the mechanical key (P. 6 1 )
in order to perform the following
operations:
Locks all the doors
Unlocks the door
If communication between the electronic key and vehicle is inter-
rupted (P. 73) 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 proce-
dure below.
Page 555 of 580
555 6-2. Customization
6
Vehicle specifications
PRIUS +_OM_OM47821E_(EE)
ItemFunctionDefault
settingCustom-
ized
setting
Smart entry
& start sys-
tem
(P. 64)Smart entry &
start systemON OFF O O O
Wireless
remote
control
(P. 92)Wireless remote
control ON OFF – – O
Buzzer sounds
when pushing
with any
door not closedON OFF – – O
Page 556 of 580
556 6-2. Customization
PRIUS +_OM_OM47821E_(EE)
ItemFunctionDefault
settingCustom-
ized
setting
Smart entry
& start sys-
tem
(P. 64) and
wireless
remote
control
(P. 92)Operation
signals (Emer-
gency flashers)ON OFF – O O
Time elapsed
before auto-
matic door lock
function is acti-
vated if door is
not opened after
being unlocked30 seconds60 seconds
––O
120
seconds
Open door
reminder buzzer
(When locking
the vehicle)ON OFF – – O
Adjust the vol-
ume of buzzer
soundsLevel 7Level 1 to 6
OOO
OFF
Alarm
(P. 150)Deactivates the
alarm when the
doors are
unlocked using
the mechanical
keyOFF ON – – O
Automatic
light control
system
(P. 261)Light sensor
sensitivityLevel 3Levels 1 to
5OOO
Page 559 of 580
559 6-2. Customization
6
Vehicle specifications
PRIUS +_OM_OM47821E_(EE)
ItemFunctionDefault set-
tingCustom-
ized
setting
Automatic
air condition-
ing system
(P. 326)Switching
between outside
air and recircu-
lated air mode
linked to “AUTO”
switch operationON OFF – O O
Heating/cooling
operation mini-
mized in Eco
drive modeON OFF – – O
Panoramic
roof shades
door lock-
linked auto-
matic closing
function
(P. 370)Operates when
the “POWER”
switch is turned
off and the doors
are locked from
inside or outside
the vehicle using
the wireless
remote control,
or are locked
from outside the
vehicle using the
smart entry &
start system or
mechanical keyON OFF – – O
Page 563 of 580

563
PRIUS +_OM_OM47821E_(EE)
Alphabetical index
Alphabetical index
A/C
Air conditioning filter.............. 427
Automatic air conditioning
system ................................ 326
ABS ........................................... 298
Air conditioning filter .............. 427
Air conditioning system
Air conditioning filter.............. 427
Automatic air conditioning
system ................................ 326
Steering wheel climate
remote control switches ...... 339
Airbags
Airbag operating
conditions ........................... 161
Airbag precautions for your
child .................................... 165
Airbag warning light .............. 471
Curtain shield airbag operating
conditions ........................... 162
Curtain shield airbag
precautions ......................... 165
General airbag precautions... 165
Knee airbag........................... 158
Locations of airbags .............. 158
Modification and disposal of
airbags ................................ 170
Proper driving posture........... 156
Side airbag operating
conditions ........................... 162
Side airbag precautions ........ 165
Side and curtain shield airbags
operating conditions ........... 162
Side and curtain shield airbags
precautions ......................... 165
SRS airbags .......................... 158Antenna .................................... 385
Anti-lock brake system ........... 298
Assist grips .............................. 374
Audio input
*
Audio remote control
switches
*
Audio system*......................... 342
Audio/video system
*.............. 342
Automatic air conditioning
system
Air conditioning filter ............. 427
Air conditioning system ......... 326
Automatic air conditioning
system ................................ 326
Steering wheel climate
remote control switches...... 339
Automatic headlight leveling
system .................................... 265
Automatic light control
system .................................... 261
AUX port
*
Auxiliary box .................... 358, 378
Back door
Back door................................ 97
Smart entry & start system ..... 64
Wireless remote control .......... 92
Back-up lights
Replacing light bulbs............. 445
Wattage ................................ 551
Battery
Checking ............................... 413
If the 12-volt battery is
discharged .......................... 522
Preparing and checking
before winter....................... 319
A
B
*: Refer to ““touch screen” Owner’s Manual”
or “Navigation System Owner’s Manual”.