2023 TOYOTA PRIUS ECU

951-5. Theft deterrent system
1
PRIUS_OM_OM47F32E_(EE)
For safety and security
■Alarm-operated door lock
In the following cases, depending on the situation, the door may automatically
lock to prevent improper entry into the vehicle:
● When a person remaining in the vehicle unlocks the door and the alarm is
activated.
● While the alarm is activated, a person remaining in the vehicle unlocks the
door.
● When recharging or replacing the 12-volt battery
NOTICE
■To ensure the system operates correctly
Do not modify or remove the system. If modified or removed, the proper
operation of the system cannot be guaranteed.

961-5. Theft deterrent system
PRIUS_OM_OM47F32E_(EE)
The intrusion sensor detects intruders or movement in the vehicle.
This system is designed to deter and prevent vehicle theft but does
not guarantee absolute security against all intrusions.
■Setting the intrusion sensor
The intrusion sensor will be set automatically when the alarm is set.
( P. 9 3 )
■Canceling the intrusion sensor
If you are leaving pets or other moving things inside the vehicle,
make sure to disable the intrusion sensor before setting the alarm,
as they will respond to movement inside the vehicle.
Turn the power switch off.
A message is displayed on the multi-information display for approxi-
mately 4 seconds asking if you wish to cancel the intrusion sensor.
Press or of the
meter control switch on the
steering wheel, select “Yes”
and then press .
If an operation is not performed
for approximately 5 seconds,
the message will be automati-
cally extinguished and the intru-
sion sensor will not be canceled.
The intrusion sensor will revert to on each time the power switch is
turned to ON mode.
Intrusion sensor (if equipped)
1
2

971-5. Theft deterrent system
1
PRIUS_OM_OM47F32E_(EE)
For safety and security
■When the message asking if you wish to cancel the intrusion sensor is
not displayed
The message may not be displayed if other message is displayed. In this
case, turn the power switch to ON mode, follow the instructions on the display
and turn the power switch off again.
■ Canceling and automatic re-enabling of the intrusion sensor
● The alarm will still be set even when the intrusion sensor is canceled.
● After the intrusion sensor is canceled, pressing the power switch or unlock-
ing the doors using the entry function or wireless remote control will re-
enable the intrusion sensor.
● The intrusion sensor will automatically be re-enabled when the alarm sys-
tem is deactivated.
■ Intrusion sensor detection considerations
The sensor may trigger the alar m in the following situations:
• The movement of people outside the vehicle
● People or pets are in the vehicle.
● A side window or moon roof (if
equipped) is open.
In this case, the sensor may detect the
following:
• Wind or the movement of objects
such as leaves and insects inside the
vehicle
• Ultrasonic waves emitted from
devices such as the intrusion sensors
of other vehicles
● Unstable items, such as dangling acces-
sories or clothes hanging on the coat
hooks, are in the vehicle.

1132. Instrument cluster
2
Instrument cluster
PRIUS_OM_OM47F32E_(EE)
Front fog light indicator P. 270
Rear fog light indicator P. 270
Security indicator P. 91, 93
“READY” indicator P. 244
Shift position indicators P. 253
*1, 2Slip indicator light P. 442
*1, 3VSC OFF indicator P. 443
Cruise control indicator P. 340,
346
Dynamic radar cruise control indicator (if
equipped) P. 329
Cruise control “SET” indicatorP. 329,
346
*1, 3PCS warning light (if equipped) P. 300
*4LTA indicator (if equipped) P. 316
Steering control indicator (if equipped) P. 316
Automatic High Beam i ndicator (if equipped) P. 266
“BSM” indicator (if equipped) P. 356
IndicatorsPages

177
3
3-2. Opening, closing and locking the doors
Operation of each component
PRIUS_OM_OM47F32E_(EE)
Side doors
◆Smart entry & start system
Carry the electronic key to enable this function.
Grip the driver’s door handle
or front passenger’s door
handle with the sensor (if
equipped) to unlock all the
doors.
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 (the indentation on the surface 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.
Press and hold to close the side
windows and moon roof (if
equipped).
*
Unlocks all the doors
Press and hold to open the side
windows and moon roof (if
equipped).
*
*
: These settings must be customized at any authorized Toyota retailer or
Toyota authorized repairer, or any reliable repairer.
The vehicle can be locked and unlocked using the entry func-
tion, wireless remote control or door lock switches.
Unlocking and locking the doors from the outside
1
2
1
2

1783-2. Opening, closing and locking the doors
PRIUS_OM_OM47F32E_(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 surface 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. 93)
■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. 636)
●Replace the key battery with a new one if it is depleted. (P. 554) When the door cannot be locked even if
the lock sensor on the surface of the door
handle is touched by a finger, touch the
lock sensor with the palm.
When gloves are being worn, remove the
gloves.

1823-2. Opening, closing and locking the doors
PRIUS_OM_OM47F32E_(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 7 7
◆Door lock switches
 P. 1 7 9
Raise the back door while pushing
up the back door opener switch.
The back door can be unlocked/locked and opened/closed by
the following procedures.
1
2
Opening the back door from outside the vehicle

1853-2. Opening, closing and locking the doors
3
Operation of each component
PRIUS_OM_OM47F32E_(EE)
WARNING
■Operating the back door
Observe the following precautions.
Failure to do so may cause parts of the body to be caught, resulting in death
or serious injury.
● Remove any heavy loads, such as snow and ice, from the back door
before opening it. Failure to do so may cause the back door to suddenly
shut again after it is opened.
● When opening or closing the back door, thoroughly check to make sure
the surrounding area is safe.
● If anyone is in the vicinity, make sure they are safe and let them know that
the back door is about to open or close.
● Use caution when opening or closing the back door in windy weather as it
may move abruptly in strong wind.
● Do not pull on the back door damper stay to close the back door, and do
not hang on the back door damper stay.
Doing so may cause hands to be caught or the back door damper stay to
break, causing an accident.
● If a bicycle carrier or similar heavy object is attached to the back door, it
may suddenly shut again after bei ng opened, causing someone’s hands,
head or neck to be caught and injured. When installing an accessory part
to the back door, using a genuine Toyota part is recommended.
● The back door may suddenly shut if it is
not opened fully. It is more difficult to
open or close the back door on an
incline than on a level surface, so
beware of the back door unexpectedly
opening or closing by itself. Make sure
that the back door is fully open and
secure before using the luggage com-
partment.
● When closing the back door, take extra
care to prevent your fingers etc. from
being caught.
● When closing the back door, make sure
to press it lightly on its outer surface. If
the back door handle is used to fully
close the back door, it may result in
hands or arms being caught.