Page 692 of 784

6928-2. Steps to take in an emergency
PRIUS PRIME_OM_OM47A88U_(U)■
Locking the charging port lid
Close the charging port lid. ( →P. 103)
Lock the doors using the mechanical key. ( →P. 690)
The charging port lid can be locked if the step and is performed in
reverse.
■
Unlocking the charging port lid
Unlock the doors using the mechanical key. ( →P. 690)
Open the charging port lid. ( →P. 103)
*: Vehicles with smart lid & connector locking system only
■
Locking the charging connector Unlock the doors using the mechanical key. ( →P. 690)
Open the charging port lid. ( →P. 103)
Insert the charging connector into the charging inlet. ( →P. 137)
Push the charging connector lock switch. ( →P. 138)
The charging connector will be locked.
■
Unlocking the charging port lid
Unlock the doors using the mechanical key. ( →P. 690)
Push the charging connector lock switch. ( →P. 140)
The charging connector will be unlocked.
*: Vehicles with smart lid & connector locking system only
Locking and unlocking the charging port lid*
Locking and unlocking the charging connector*
1
2
12
1
2
1
2
3
4
1
2
Page 697 of 784

6978-2. Steps to take in an emergency
PRIUS PRIME_OM_OM47A88U_(U)
8
When trouble arises
■When recharging or repl acing the 12-volt battery
● In some cases, it may not be possible to unlock the doors using the smart
key system when the 12-volt battery is discharged. Use the wireless 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.
● Vehicles with smart lid & connector locking system:
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 whee\
ls
will be locked. ( →P. 646)
■ 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 equivalent (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 your Toyota dealer.
Page 735 of 784
PRIUS PRIME_OM_OM47A88U_(U)
7359-2. Customization
9
Vehicle specifications
■HUD (Head-up display)* (→ P. 238)
*: If equipped
■
Door lock ( →P. 267, 690)
■Smart key system and wireless remote control ( →P. 268, 278)
FunctionDefault
settingCustomized setting
Route guidance*OnOffO––
123
FunctionDefault settingCustomized setting
Automatic door lockingShift position linkedSpeed linked–OO
Off–OO
Automatic door unlockingShift position linkedDriver’s door linked–OO
Off–OO
Unlocking using a mechanical
key
Driver’s door unlocked in
first step, all
doors
unlocked in
second step
All doors
unlocked in first step
––O
123
FunctionDefault settingCustomized setting
Operation signal (buzzer) 5Off
–OO
1 to 7
Operation signal (emergency
flashers) On
Off – O O
Time elapsed before the auto-
matic door lock function is
activated if a door is not
opened after being unlocked
60 seconds
Off
–OO30 seconds
120 seconds
Open door reminder buzzer
(when locking the vehicle)OnOff––O
123
Page 736 of 784
736
PRIUS PRIME_OM_OM47A88U_(U)
9-2. Customization
■Smart key system (→P. 278)
*: This function can also be changed using the wireless remote control.
(→P. 271)
■
Wireless remote control ( →P. 268)
FunctionDefault
settingCustomized setting
Smart door unlocking*Driver’s doorAll the doors–OO
Smart key systemOnOff––O
Time elapsed before unlock-
ing all the door when gripping
and holding the driver’s door
handle
2 seconds
Off
––O1.5 seconds
2.5 seconds
Number of consecutive door
lock operations2 timesAs many as
desired––O
123
FunctionDefault settingCustomized setting
Unlocking operation
Driver’s door unlocked in
first step, all
doors
unlocked in
second step
All doors
unlocked in first step
–OO
Wireless remote control On Off – – O
Locking operation when door
opened On Off – – O
123
Page 740 of 784
740
PRIUS PRIME_OM_OM47A88U_(U)
9-2. Customization
■Remote Air Conditioning System (→P. 509)
■Illumination ( →P. 515)
*: If equipped
FunctionDefault
settingCustomized setting
Operation using the “A/C” but-
ton on the wireless remote
controlPress and
hold for 0.8 seconds
Press once
––O
Press twice
Press and
hold for 2.4
seconds
Off
Stopping the operation using
the “A/C” button on the wire-
less remote control
Press twice
Press once
––O
Press and
hold for 0.8 seconds
Press and
hold for 2.4
seconds
Off
123
FunctionDefault settingCustomized setting
Time elapsed before the inte-
rior lights turn off 15 secondsOff
–OO
7.5 seconds
30 seconds
Operation after the power
switch is turned offOnOff––O
Operation when the doors are
unlockedOnOff––O
Operation when you approach
the vehicle with the electronic
key on your person
OnOff––O
Footwell lighting*OnOff––O
Interior lights illumination con-
trolOnOff––O
123
Page 741 of 784

PRIUS PRIME_OM_OM47A88U_(U)
7419-2. Customization
9
Vehicle specifications
■Seat belt reminder (→P. 658)
■Vehicle customization
●When the Speed linked door locking function and the Shift position linked
door locking function are both on, the door lock operates as follows.
• When shifting the shift position to any position other than P, all the doors
will be locked.
• If the vehicle is started with all the doors locked, the Speed linked door locking function would not operate.
• If the vehicle is started with any door unlocked, the Speed linked door
locking function will operate.
● When the smart key system is off, Smart door unlocking cannot be custom-
ized.
● When the doors remain closed after unlocking the doors and the automatic
door lock function is activated, the signals will be generated in accordance
with the operation signal (buzzer) and the operation signal (emergency
flashers) settings.
■ In the following situati ons, customize mode in which the settings can be
changed through the mu lti-information display will automatically be
turned off.
● The power switch is turned off.
● The vehicle begins to move while the customize mode screen is displayed.
FunctionDefault
settingCustomized setting
Vehicle speed linked seat belt
reminder buzzerOnOff––O
WARNING
■Cautions during customization
As the hybrid system needs to be oper ating during customization, ensure
that the vehicle is parked in a place with adequate ventilation. In a closed
area such as a garage, exhaust gases including harmful carbon monoxide
(CO) may collect and enter the vehicle. This may lead to death or a serious
health hazard.
NOTICE
■ During customization
To prevent 12-volt battery discharge, ensure that the hybrid system is oper-
ating while customizing features.
123
Page 762 of 784

762What to do if... (Troubleshooting)
PRIUS PRIME_OM_OM47A88U_(U)
What to do if... (Troubleshooting)
●If you lose your mechanical keys, new genuine mechanical keys can be
made by your Toyota dealer. ( →P. 263)
●If you lose your electronic keys, the risk of vehicle theft increases signifi-
cantly. Contact your Toyota dealer immediately. ( →P. 266)
●Is the electronic key battery weak or depleted? (→P. 627)
●Is the power switch in ON mode?
When locking the doors, turn the power switch off. ( →P. 326)
●Is the electronic key left inside the vehicle?
When locking the doors, make sure that you have the electronic key on
your person.
●The function may not operate properly due to the condition of the radio
wave. (→P. 281)
●Is the child-protector lock set?
The rear door cannot be opened from inside the vehicle when the lock is
set. Open the rear door from outside and then unlock the child-protector
lock. (→P. 270)
If you have a problem, check the following before contacting
your Toyota dealer.
The doors cannot be locked, unlocked, opened or closed
You lose your keys
The doors cannot be locked or unlocked
The rear door cannot be opened
Page 767 of 784

767Alphabetical index
PRIUS PRIME_OM_OM47A88U_(U)
Approach warning ................... 400
Assist grips .............................. 540
Audio input
*
Audio system*
Automatic air conditioning system ..... 488, 498 Air conditioning eco mode .......................... 490, 501
Air conditioning filter ............. 620
Automatic air conditioning system .... 488, 498
Eco score (A/C score)........... 228
Humidity sensor ............ 494, 505
Remote Air Conditioning System ............................... 509
S-FLOW mode .............. 489, 500
Automatic door locking
and unlocking systems ........ 270
Automatic High Beam ............. 343
Automatic light control system .................................... 341
AUX port
*
Auxiliary boxes ........................ 522
Back door ................................. 273
Back-up lights .......................... 635 Replacing light bulbs............. 636
Wattage ................................ 717
Battery (12-volt battery) .......... 587
Battery checking ................... 587
Exchanging ........................... 697
If the 12-volt battery is discharged .......................... 694
Preparing and checking before winter....................... 482
Warning light ......................... 653 Battery (traction battery) .......... 90
Air intake vent ......................... 91
Charging ............................... 102
Location .................................. 90
Specification ......................... 711
Status indicator ..................... 104
Blind Spot Monitor (BSM) ....... 408 Blind Spot Monitor function... 412
Rear Cross Traffic Alert
function............................... 415
Bluetooth
®*
Bottle holders .......................... 521
Brake Fluid ...................................... 716
Parking brake ....................... 337
Regenerative braking ............. 86
Warning light......................... 653
Brake assist ............................. 476
Brake Override System ........... 308
Break-in tips............................. 309
Brightness control Instrument cluster light control ......................... 182
BSM (Blind Spot Monitor) ....... 408 Blind Spot Monitor function... 412
Rear Cross Traffic Alert function............................... 415
Care .................................. 556, 561 Aluminum wheels ................. 557
Camera sensor ..................... 365
Exterior ................................. 556
Interior .................................. 561
Radar sensor ........................ 364
Seat belts.............................. 564
Water-repellent coating ........ 557
B
C
*: Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”.