Page 97 of 496

97
1
1-3. Theft deterrent system
PRIUS +_OM_OM47888E_(EE)
For safety and security
Alar m∗
The alarm uses light and sound to give an alert when an intrusion is
detected.
The alarm is triggered in the following situations when the alarm is
set:
●A locked door or back door is unlocked or opened in any way other
than using the entry function or wireless remote control.
● The hood is opened.
● The quarter windows or back door window are tapped or broken. (if
equipped)
Close the doors and hood, and
lock all the doors using the entry
function or wireless remote con-
trol. The system will be set auto-
matically after 30 seconds.
The indicator light changes from
being on to flashing when the sys-
tem is set.
Do one of the following to deactivate or stop the alarm.
● Unlock the doors using the entry function or wireless remote con-
trol.
● Start the hybrid system. (The alarm will be deactivated or stopped
after a few seconds.)
∗: If equipped
The alarm
Setting the alarm system
Deactivating or stopping the alarm
Page 138 of 496
1383-1. Key information
PRIUS +_OM_OM47888E_(EE)
Keys
The following keys are provided with the vehicle.Electronic keys
• Operating the smart entry &start system ( →P. 151)
• Operating the wireless remote
control function
Mechanical keys
Key number plate
Locks all the doors ( →P. 142)
Check that the door is securely
locked.
Unlocks all the doors ( →P. 142)
The keys
1
2
3
Wireless remote control
1
2
Page 140 of 496

1403-1. Key information
PRIUS +_OM_OM47888E_(EE)■
Electronic key battery depletion
●The standard battery life is 1 to 2 years.
● If the battery becomes low, an alarm will sound in the cabin and a message
will be displayed on the multi-information display (if equipped) when the
hybrid system stops. ( →P. 403)
● As the electronic key always receives radio waves, the battery will become
depleted even if the electronic key is not used. The following symptoms indi-
cate that the electronic key battery may be depleted. Replace the battery
when necessary. ( →P. 351)
• The smart entry & start system or the wireless remote control does not operate.
• The detection area becomes smaller.
• The LED indicator on the key surface does not turn on.
● To avoid serious deterioration, do not leave the electronic key within 1 m (3
ft.) of the following electrical appl iances that produce a magnetic field:
•TVs
• Personal computers
• Cellular phones, cordless phones and battery chargers
• Recharging cellular phones or cordless phones
• Induction cookers
• Table lamps
■ Replacing the battery
→ P. 351
■ If a wrong key is used
The key cylinder rotates freely to isolate inside mechanism.
Page 142 of 496
1423-2. Opening, closing and locking the doors
PRIUS +_OM_OM47888E_(EE)
Side doors
◆Smart entry & start system
Carry the electronic key to enable this function.Grip the driver’s door handle
or front passenger door han-
dle with the sensor (if
equipped) to unlock the door.
Make sure to touch the sensor
on the back of the handle.
The doors cannot be unlocked
for 3 seconds after the doors are
locked.
Touch the lock sensor (indentation on the upper part of the front
door handle) to lock the doors.
Check that the door is securely locked.
◆Wireless remote control
Locks all the doors
Check that the door is securely
locked.
Unlocks all the doors
The vehicle can be locked and unlocked using the entry func-
tion, wireless remote control or door lock switch.
Unlocking and locking the doors from the outside
1
2
1
2
Page 143 of 496

1433-2. Opening, closing and locking the doors
3
Operation of each component
PRIUS +_OM_OM47888E_(EE)
■Operation signals
The emergency flashers flash to indicate that the doors have been locked/
unlocked. (Locked: Once; Unlocked: Twice)
■ Security feature
If a door is not opened within approximately 30 seconds after the vehicle is
unlocked, the security feature automatically locks the vehicle again.
■ When the door cannot be locked by the lock sensor on the upper part of
the door handle
■ Door lock buzzer
If an attempt to lock the doors is made when a door is not fully closed, a
buzzer sounds continuously for 5 seconds. Fully close the door to stop the
buzzer, and lock the vehicle once more.
■ Setting the alarm (if equipped)
Locking the doors will set the alarm system. ( →P. 97)
■ If the smart entry & start system or the wireless remote control does not
operate properly
● Use the mechanical key to lock and unlock the doors. ( →P. 437)
● Replace the key battery with a new one if it is depleted. ( →P. 351)
If the door will not lock even when the top-
side sensor area is touched, try touching
both the topside and underside sensor
areas at the same time.
Page 146 of 496
1463-2. Opening, closing and locking the doors
PRIUS +_OM_OM47888E_(EE)
Back door
◆Smart entry & start system (if equipped)
Carry the electronic key to enable this function.Locks all the doors
Check that the door is securely
locked.
Unlocks all the doors
The doors cannot be unlocked
for 3 seconds after the doors are
locked.
◆Wireless remote control
→P. 1 3 8
◆Door lock switch
→P. 1 4 4
Raise the back door while pushing
up the back door opener switch.
The back door can be unlocked/locked and opened by the fol-
lowing procedures.
1
2
Opening the back door from outside the vehicle
Page 153 of 496

1533-2. Opening, closing and locking the doors
3
Operation of each component
PRIUS +_OM_OM47888E_(EE)■
Battery-saving function
The battery-saving function will be activated in order to prevent the electronic
key battery and the 12-volt battery from being discharged while the vehicle is
not in operation for a long time.
●In the following situations, the smart entry & start system may take some
time to unlock the doors.
• The electronic key has been left in an area of approximately 2 m (6 ft.) of
the outside of the vehicle for 10 minutes or longer.
• The smart entry & start system has not been used for 5 days or longer.
● If the smart entry & start system has not been used for 14 days or longer,
the doors cannot be unlocked at any doors except the driver’s door. In this
case, take hold of the driver’s door handle, or use the wireless remote con-
trol or the mechanical key, to unlock the doors.
Interior alarm
pings repeatedly
The power switch was
turned to ACCESSORY
mode while the driver’s door
was open (The driver’s door
was opened when the
power switch was in
ACCESSORY mode).
Turn the power switch
off and close the
driver’s door.
The driver’s door is open
with the shift position in R.
Close the driver’s door,
shift the shift position to
P, or turn the power
switch off.
AlarmSituationCorrection procedure
Page 154 of 496

1543-2. Opening, closing and locking the doors
PRIUS +_OM_OM47888E_(EE)■
Conditions affecting operation
The smart entry & start system, wireless remote control and immobilizer sys-
tem use weak radio waves. In the following situations, the communication
between the electronic key and the vehicle may be affected, preventing the
smart entry & start system, wireless remote control and immobilizer system
from operating properly.
(Ways of coping: →P. 437)
● When the electronic key battery is depleted
● Near a TV tower, electric power plant, gas station, radio station, large dis-
play, airport or other facility that generates strong radio waves or electrical
noise
● When carrying a portable radio, cellular phone, cordless phone or other
wireless communication devices
● When the electronic key is in contact with, or is covered by the following
metallic objects
• Cards to which aluminum foil is attached
• Cigarette boxes that have aluminum foil inside
• Metallic wallets or bags
• Coins
• Hand warmers made of metal
• Media such as CDs and DVDs
● When other wireless key (that emit radio waves) is being used nearby
● When carrying the electronic key together with the following devices that
emit radio waves
• Another vehicle’s electronic key or a wireless key that emits radio waves
• Personal computers or personal digital assistants (PDAs)
• Digital audio players
• Portable game systems
● If window tint with a metallic content or metallic objects are attached to the
rear window