Page 450 of 509

4507-2. Steps to take in an emergency
PRIUS +_OM_OM47B24E_(EE)
If the electronic key does not operate
properly
Use the mechanical key (→P. 141)
in order to perform the following
operations:
Locks all the doors
Unlocks all the doors
Ensure that the shift position is in P and depress the brake pedal.
Touch the Toyota emblem side
of the electronic key to the
power switch.
When the electronic key is
detected, a buzzer sounds and the
power switch will turn to ON mode.
When the smart entry & start sys-
tem is deactivated in customization
setting, the power switch will turn
to ACCESSORY mode.
Firmly depress the brake pedal and check that the smart entry &
start system indicator light (green) turns on (vehicles without multi-
information display) or is shown on the multi-information
display (vehicles with multi-information display).
If communication between the electronic key and vehicle is inter-
rupted ( →P. 156) 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
Starting the hybrid system
1
2
3
Page 451 of 509

4517-2. Steps to take in an emergency
PRIUS +_OM_OM47B24E_(EE)
7
When trouble arises
Press the power switch.
In the event that the hybrid system still cannot be operated, contact
any authorized Toyota dealer or repairer, or another duly qualified and
equipped professional.
■ Stopping the hybrid system
Set the parking brake, shift the shift position to P and press the power switch
as you normally do when stopping the hybrid system.
■ Replacing the key battery
As the above procedure is a temporary measure, it is recommended that the
electronic key battery be replaced imm ediately when the battery is depleted.
( → P. 361)
■ Alarm (if equipped)
Using the mechanical key to lock the doors will not set the alarm system.
If a door is unlocked using the mechanical key when the alarm system is set,
the alarm may be triggered. ( →P. 98)
■ Changing power switch modes
Release the brake pedal and press the power switch in step
above.
The hybrid system does not start and modes will be changed each time the
switch is pressed. ( →P. 210)
■ When the electronic key does not work properly
●Make sure that the smart entry & start system has not been deactivated in
the customization setting. If it is off, turn the function on.
(Customizable features: →P. 477)
● Check if battery-saving mode is set. If it is set, cancel the function.
(→ P. 155)
4
3
Page 452 of 509
4527-2. Steps to take in an emergency
PRIUS +_OM_OM47B24E_(EE)
If the 12-volt batter y is discharged
If you have a set of jumper (or booster) cables and a second vehicle
with a 12-volt battery, you can jump start your vehicle by following the
steps below.Vehicles with alarm ( →P. 98):
Confirm that the electronic key
is being carried.
When connecting the jumper (or
booster) cables, depending on the
situation, the alarm may activate
and doors locked. ( →P. 100)
Open the hood ( →P. 323) and
fuse box cover.
When closing, first hook the lid
onto the two rear tabs.
Open the exclusive jump start-
ing terminal cover.
The following procedures may be used to start the hybrid sys-
tem if the vehicle’s 12-volt battery is discharged.
You can also call any authorized Toyota dealer or repairer, or
another duly qualified and equipped professional.
1
2
3
Page 454 of 509

4547-2. Steps to take in an emergency
PRIUS +_OM_OM47B24E_(EE)
Start the engine of the second vehicle. Increase the engine speed
slightly and maintain at that level for approximately 5 minutes to
recharge the 12-volt battery of your vehicle.
Maintain the engine speed of the second vehicle and start the
hybrid system of your vehicle by turning the power switch to ON
mode.
Make sure the “READY” indicator comes on. If the indicator light
does not come on, contact any authorized Toyota dealer or repairer,
or another duly qualified and equipped professional.
Once the hybrid system has started, remove the jumper cables in
the exact reverse order from which they were connected.
Close the exclusive jump starting terminal cover, and reinstall the
fuse box cover to its original position.
When installing, first hook the fuse box cover onto the two rear tabs.
Once the hybrid system starts, have the vehicle inspected at any
authorized Toyota dealer or repairer, or another duly qualified and
equipped professional as soon as possible.
■Starting the hybrid system when the 12-volt battery is discharged
The hybrid system cannot be started by push-starting.
■ To prevent 12-volt battery discharge
●Turn off the headlights and the audio system while the hybrid system is off.
● Turn off any unnecessary electrical components when the vehicle is running
at a low speed for an extended period, such as in heavy traffic.
■ When the 12-volt battery is removed or discharged
●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.
● 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 battery discharged, be especially careful when recon-
necting the 12-volt battery.
5
6
7
8
9
Page 479 of 509
4798-2. Customization
PRIUS +_OM_OM47B24E_(EE)
8
Vehicle specifications
■Wireless remote control (→P. 140)
■Automatic light control system ( →P. 223)
■Illumination ( →P. 290)
*: If equipped
FunctionDefault
settingCustomized setting
Wireless remote control On Off – – O
123
FunctionDefault
settingCustomized setting
Light sensor sensitivityLevel 0Level -2 to 2–OO
123
FunctionDefault settingCustomized setting
Time elapsed before the
interior 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 unlocked with the
smart entry & start system
or the wireless remote
control function or the
mechanical key
OnOff––O
Operation when you
approach the vehicle with
the electronic key on your
person
OnOff––O
Footwell lighting
*On Off – – O
Footwell lighting control On Off – – O
123
Page 481 of 509
4818-2. Customization
PRIUS +_OM_OM47B24E_(EE)
8
Vehicle specifications
■Panoramic roof shades* (→ P. 306)
*: If equipped
■
Reverse buzzer ( →P. 218)
■Alarm* (→ P. 9 8 )
*: If equipped
FunctionDefault
settingCustomized setting
Door lock linked automatic
closing functionOnOff––O
123
FunctionDefault
settingCustomized setting
Signal (buzzer) when the
shift position is in RIntermittentSingle––O
123
FunctionDefault settingCustomized setting
Deactivates the alarm
when the doors are
unlocked using the
mechanical key
OffOn––O
123
Page 486 of 509

486What to do if... (Troubleshooting)
PRIUS +_OM_OM47B24E_(EE)
What to do if... (Troubleshooting)
●If you lose your mechanical keys, new genuine mechanical keys can be
made by any authorized Toyota dealer or repairer, or another duly qualified
and equipped professional. (→P. 141)
●If you lose your electronic keys, the risk of vehicle theft increases signifi-
cantly. Contact any authorized Toyota dealer or repairer, or another duly
qualified and equipped professional immediately. ( →P. 143)
●Is the electronic key battery weak or depleted? ( →P. 361)
●Is the power switch in ON mode?
When locking the doors, turn the power switch off. ( →P. 210)
●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. 156)
●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. 147)
If you have a problem, check the following before contacting any
authorized Toyota dealer or repairer, or another duly qualified
and equipped professional.
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 487 of 509
487What to do if... (Troubleshooting)
PRIUS +_OM_OM47B24E_(EE)
●Did you press the power switch while firmly depressing the brake pedal?
(→ P. 207)
●Is the shift position in P? ( →P. 207)
●Is the electronic key anywhere detectable inside the vehicle? ( →P. 153)
●Is the electronic key battery weak or depleted?
In this case, the hybrid system can be started in a temporary way.
(→ P. 450)
●Is the 12-volt battery discharged? ( →P. 452)
●Is the window lock switch pressed?
The power windows except for the one at the driver’s seat cannot be oper-
ated if the window lock switch is pressed. ( →P. 191)
●The auto power off function will be operated if the vehicle is left in
ACCESSORY or ON mode (the hybrid system is not operating) for a
period of time. ( →P. 2 1 1 )
If you think something is wrong
The hybrid system does not start
The windows do not open or close by operating the power
window switches
The power switch is turned off automatically