
705
PRIUS_OM_OM47B54U_(U)
8
When trouble arises
8-2. Steps to take in an emergency
If the electronic key does not operate
properly
Use the mechanical key (→P. 161) in order to perform the following
operations:
Locks all the doors
Closes the windows and moon
roof
*1 (turn and hold)*2
Unlocks the door
Opens the windows and moon
roof
*1 (turn and hold)*2
Turning the key rearward unlocks
the driver’s door. Turning the key
once again within 3 seconds
unlocks the other doors.
*1: If equipped
*2: These settings must be customized at your Toyota dealer. ( →P. 748)
If communication between the electronic key and vehicle is
interrupted ( →P. 178) or the electronic key cannot be used
because the battery is depleted, the smart key 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 procedure below.
Locking and unlocking the doors
1
2
3
4

7118-2. Steps to take in an emergency
PRIUS_OM_OM47B54U_(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.
● 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 with the same case size as the previous 12-volt battery
and an equivalent 20 hour rate capacity (20HR) 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.

750
PRIUS_OM_OM47B54U_(U)
9-2. Customization
■HUD (Head-up display)* (→ P. 146)
*: If equipped
■
Door lock ( →P. 165, 705)
■Smart key system and wireless remote control ( →P. 166, 176)
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

PRIUS_OM_OM47B54U_(U)
7519-2. Customization
9
Vehicle specifications
■Smart key system (→P. 176)
*: This function can also be changed using the wireless remote control.
(→P. 169)
■
Wireless remote control ( →P. 166)
FunctionDefault
settingCustomized setting
Smart key systemOnOff–OO
Smart door unlocking*Driver’s doorAll the doors–OO
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

752
PRIUS_OM_OM47B54U_(U)
9-2. Customization
■Power windows and moon roof* (→ P. 198, 202)
*: If equipped
■
Reverse warning buzzer (→ P. 236)
■Turn signal lever (→P. 240)
FunctionDefault
settingCustomized setting
Mechanical key linked opera-
tion (open)OffOn––O
Mechanical key linked opera-
tion (close)OffOn––O
Wireless remote control linked
operation (open only)OffOn––O
Mechanical key, wireless
remote control linked opera-
tion signal (buzzer)
OnOff––O
123
FunctionDefault
settingCustomized setting
Signal (buzzer) when the shift
position is in RIntermittentSingle––O
123
FunctionDefault settingCustomized setting
Times of flashing of the lane
change signal flashers3
Off
––O5
7
123

786Alphabetical index
PRIUS_OM_OM47B54U_(U)
JackPositioning a floor jack .......... 589
Vehicle-equipped
jack ............................. 671, 686
Jack handle ...................... 671, 686
Jam protection function
Moon roof.............................. 203
Power windows ..................... 199
Keyless entry Smart key system ................. 176
Wireless remote control ........ 160
Keys .......................................... 160
Electronic key ....................... 160
Engine switch........................ 225
If the electronic key does not operate properly ........... 705
If you lose your keys ..... 161, 164
Key number plate.................. 160
Keyless entry ........................ 160
Keys ...................................... 160
Mechanical key ..................... 160
Power switch......................... 225
Replacing the battery ............ 627
Warning buzzer..................... 177
Wireless remote control key ...................................... 160
Knee airbags .............................. 36 Language
(multi-information
display) .................................. 142
LATCH system ........................... 61
LDA (Lane Departure Alert with steering control) ........... 287
Lever Auxiliary catch lever.............. 587
Hood lock release lever ........ 587
Shift lever.............................. 234
Turn signal lever ................... 240
Wiper lever ........................... 254
License plate lights Light switch ........................... 242
Replacing light bulbs ............ 641
Light Automatic High Beam
system .......... ...................... 247
Door courtesy lights .............. 523
Fog light switch ..................... 252
Headlight switch ................... 242
Illuminated entry system ....... 525
Interior lights ................. 524, 525
Interior light list ..................... 523
Luggage compartment light..................................... 172
Personal lights ...................... 524
Replacing light bulbs ............ 635
Shift lever light ...................... 523
Turn signal lever ................... 240
Vanity lights .......................... 540
Wattage ................................ 732
Light bulbs
Replacing.............................. 635
Wattage ................................ 732
Luggage cover ......................... 535
J
K
L

791Alphabetical index
PRIUS_OM_OM47B54U_(U)
Smart key system .................... 176Antenna location ................... 176
Entry functions ...................... 165
Starting the hybrid system .... 225
Snow tires ................................ 412
“SOS” button ........................... 559
Spare tire Inflation pressure .................. 730
Storage location .................... 671
Spark plug ................................ 728
Specifications .......................... 722
Speedometer ............................ 108
SRS airbags ............................... 36
Steering wheel Adjustment ............................ 192
Audio switches ...................... 422
Meter control switches ............ 93
Telephone switches .............. 482
TRIP switch............................. 93
Stop/tail lights .......................... 641
Storage feature ........................ 526
Storage precautions ................ 526
Stuck
If the vehicle becomes stuck ................................... 719
Sun visors ................................ 540
Sunshade Moon roof.............................. 203 Switch
Audio remote control
switches ............................. 422
Automatic High Beam switch ................................. 247
Cruise control switch .... 298, 313
Door lock switches................ 167
Driving mode select switch ................................. 318
Emergency flashers switch ................................. 644
Engine switch ....................... 225
EV drive mode switch ........... 231
Fog light switch ..................... 252
Garage door opener switches ............................. 552
“HUD” (Head-up display)
switch ................................. 146
Ignition switch ....................... 225
LDA (Lane Departure Alert with steering control)) ......... 291
Light switch ........................... 242
Moon roof switches............... 202
Meter control switches ............ 93
Outside rear view mirror switches ............................. 196

794Alphabetical index
PRIUS_OM_OM47B54U_(U)
Warning buzzersBlind Spot Monitor (BSM) ..... 320
Brake system ....... ................. 653
Downshifting ......................... 236
Lane departure alert ............. 288
Open door ..................... 169, 655
Open moon roof .................... 204
Parking assist sensors ............... 333, 344, 357
Pre-collision warning............. 275
Radar cruise control.............. 307
Seat belt reminder ................ 656
Warning lights ABS....................................... 654
Brake Override System......... 656
Brake system ....... ................. 653
Charging system ................... 653
Drive-Start Control ................ 656
Driver’s seat belt reminder ............................. 656
Electronic engine control system ......... ....................... 653
Electric power steering ......... 654
Front passenger’s seat
belt reminder ...................... 656
High coolant temperature ..... 655
ICS OFF indicator ................. 655
Intelligent Clearance Sonar .................................. 656
LDA system .......................... 657
Low engine oil pressure ........ 653
Low fuel level ........................ 655
Malfunction indicator lamp .... 653
Master warning light.............. 656
Open door ............................. 655
PCS ...................................... 654
Rear passengers’ seat belt
reminder light...................... 656
Seat belt reminder light ......... 656
Slip indicator ......................... 655
SRS ...................................... 654
Tire pressure......................... 656 Warning messages.................. 663
Warning reflector..................... 534
Washer
Checking............................... 602
Preparing and checking before winter ...................... 412
Switch ........................... 254, 260
Washing and waxing ............... 566
Water-repellent coating .......... 567
Weights Cargo capacity...................... 222
Load limits ............................ 722
What to do if... (Troubleshooting) ................. 774
Wheels ...................................... 617 Replacing wheels ................. 670
Size....................................... 730
Window glasses ...................... 198
Window lock switch ................ 198
Windows Power windows..................... 198
Rear window defogger.......... 515
Washer ......................... 254, 260
Windshield wipers ................... 254 Handling the wiper arms ....... 571
Winter driving tips ................... 412
Wiper rubber replacement ...... 623
Wireless charger ..................... 542
Wireless communication ........ 455
Wireless remote control key .......................................... 160 Locking/Unlocking ................ 160
Panic mode........................... 161
Replacing the battery............ 627
WMA disc ................................. 438
W