2023 TOYOTA HIGHLANDER ECU

691-4. Theft deterrent system
1
For safety and security
1-4.Theft deterrent system
Vehicles with 8-inch audio
system screen
Vehicles with 12.3-inch audio
system screen
The indicator light flashes after
the engine switch has been
turned off to indicate that the
system is operating.
The indicator light stops flashing
after the engine switch has been
turned to ACC or ON to indicate
that the system has been can-
celed.
■System maintenance
The vehicle has a mainte-
nance-free type engine immobilizer
system.
■Conditions that may cause the
system to malfunction
●If the grip portion of the key is in
contact with a metallic object
●If the key is in close proximity to or
touching a key registered to the
security system (key with a built-in
transponder chip) of another vehi-
cle
Engine immobilizer
system
The vehicle’s keys have
built-in transponder chips
that prevent the engine from
starting if a key has not
been previously registered
in the vehicle’s on-board
computer.
Never leave the keys inside
the vehicle when you leave
the vehicle.
This system is designed to
help prevent vehicle theft
but does not guarantee
absolute security against all
vehicle thefts.
Operating the system
NOTICE
■To ensure the system oper-
ates correctly
Do not modify or remove the sys-
tem. If modified or removed, the
proper operation of the system
cannot be guaranteed.

701-4. Theft deterrent system
*: If equipped
■Items to check before lock-
ing the vehicle
To prevent unexpected trigger-
ing of the alarm and vehicle
theft, make sure of the following:
 Nobody is in the vehicle.
 The windows, moon roof (if
equipped) and panoramic
moon roof (if equipped) are
closed before the alarm is set.
 No valuables or other per-
sonal items are left in the
vehicle.
■Setting
Close the doors and hood, and
lock all the doors. The system will be set automatically after 30
seconds.
The security indicator changes from
being on to flashing when the sys-
tem is set.
Vehicles with 8-inch audio
system screen
Vehicles with 12.3-inch audio
system screen
■Canceling or stopping
Do one of the following to deac-
tivate or stop the alarms:
 Unlock the doors.
 Turn the engine switch to
ACC or ON, or start the
engine. (The alarm will be
deactivated or stopped after a
few seconds.)
■System maintenance
The vehicle has a mainte-
nance-free type alarm system.
Alarm*
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 is unlocked or
opened in any way other
than using the entry func-
tion, wireless remote control
or mechanical key. (The
doors will lock again auto-
matically.)
 The hood is opened.
Setting/canceling/stop-
ping the alarm system

711-4. Theft deterrent system
1
For safety and security
■Triggering of the alarm
The alarm may be triggered in the
following situations:
(Stopping the alarm deactivates the
alarm system.)
●A person inside the vehicle opens
a door or hood, or unlocks the
vehicle.
●The battery is recharged or
replaced when the vehicle is
locked. ( P.467)
■Alarm-operated door lock
In the following cases, depending
on the situation, th e door may auto-
matically lock to p revent 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
battery
NOTICE
■To ensure the system oper-
ates correctly
Do not modify or remove the sys-
tem. If modified or removed, the
proper operation of the system
cannot be guaranteed.

772-1. Instrument cluster
2
Vehicle status information and indicators
Drive mode indicators
Turn signal indicator
( P.204)
(U.S.A.)
Headlight indicator
( P.210)
(Canada)
Tail light indicator
( P.210)
Headlight high beam indi-
cator ( P.212)
Automatic High Beam indi-
cator ( P.213)
Front fog light indicator (if
equipped) (P.216)
PCS warning light
*1, 2
(  P.228)
Cruise control indicator
(  P.249)
Dynamic radar cruise con-
trol indicator ( P.249)
Cruise control “SET” indi-
cator ( P.249)
*7
LTA i n d i c a t o r ( P.228,
245)
BSM outside rear view
mirror indicators
*2, 3 (if
equipped) (P.270, 283)
BSM OFF indicator
*1, 2 (if
equipped) (P.270)
Intuitive parking assist
OFF indicator
*1, 2(if
equipped) (P.276)
“RCTA OFF” indicator
*1, 2
(if equipped) ( P.284)
PKSB OFF indicator
*1, 2(if
equipped) (P.291)
Stop & Start indicator
*2 (if
equipped) (P.264)
Stop & Start cancel indica-
tor
*1, 2 (if equipped)
(  P.265)
(flashes)
Slip indicator*2 ( P.308)
VSC OFF indicator
*1, 2
(  P.309)
Smart key system indica-
tor
*4 (  P.197)
(U.S.A.)
Parking brake indicator*2
(  P.205)
(Canada)
Parking brake indicator*2
(  P.205)
Brake hold standby indica-
tor
*2 (  P.208)
Brake hold operated indi-
cator
*2 (  P.208)
Snow mode indicator
(  P.304)
Downhill assist control
system indicator (if
equipped) ( P.305)
Eco Driving Indicator
Light
*2 (  P.89, 100)
Low outside temperature
indicator
*6 (  P.79)
Security indicator
*5
(  P.69, 70)
“PASS AIR BAG ON/OFF”
indicator
*2, 5 (  P. 4 3 )
“PASS AIR BAG
ON/OFF” indicator
*2,
5
(  P. 4 3 )

1153-2. Opening, closing and locking the doors
3
Before driving
3-2.Opening, closing and locking the doors
■Smart key system
Carry the electronic key to
enable this function.
1 Grip the driver’s door handle
to unlock the door. Holding
the driver’s door handle for
approximately 2 seconds
unlocks all the doors. Grip
the front passenger’s door
handle 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.
*: The door unlock settings can be
changed. ( P.115, 494)
2 Touch the lock sensor (the
indentation on the upper part of the front door handle) to
lock all the doors.
Check that the d
oor is securely
locked.
■Wireless remote control
1 Locks all the doors
Check that the d oor is securely
locked.
2 Unlocks all the doors
Pressing the button unlocks the
driver’s door. Pressing the button
again within 5 seconds unlocks the
other doors.
Press and hold to open the win-
dows
*1 and moon roof*1, 2
*1
: This setting must be customized at your Toyota dealer.
*2: If equipped
■Switching the door unlock func-
tion
It is possible to set which doors the
entry function unlocks using the
wireless remote control.
1 Turn the engine switch off.
2 When the indicator light on the
key surface is not on, press and
hold , or for
approximately 5 seconds while
pressing and holding .
The setting changes each time an
operation is per formed, as shown
below. (When changing the setting
Side doors
The vehicle can be locked
and unlocked using the
entry function, wireless
remote control or door lock
switches.
Unlocking and locking the
doors from the outside

1163-2. Opening, closing and locking the doors
continuously, release the buttons,
wait for at least 5 seconds, and
repeat step 2.)
For vehicles with an alarm: To pre-
vent unintended triggering of the
alarm, unlock the doors using the
wireless remote control and open
and close a door once after the set-
tings have been changed. (If a door
is not opened within 60 seconds
after is press ed, the doors will
be locked again an d the alarm will
automatically be set.)
In case that the alarm is triggered,
immediately stop the alarm. ( P. 7 0 )
■Impact detection door lock
release system
In the event that t he vehicle is sub-
ject to a strong impact, all the doors
are unlocked. Depending on the
force of the impact or the type of
accident, however, the system may
not operate.
■Operation signals
A buzzer sounds and the emer-
gency flashers flash to indicate that
the doors have been
locked/unlocked. (Locked: Once;
Unlocked: Twice)
A buzzer sounds to indicate that the
windows and the moon roof
* or pan-
oramic moon roof* are operating.
*: If equipped
■Security feature
If a door is not opened within
approximately 60 s econds after the
vehicle is unlocked, the security fea-
ture automatically locks the vehicle
again.
■When the door cannot be
locked by the lock sensor on
the surface of the front door
handle
If the door will not lock even when
the topside sensor area is touched,
try touching both the topside and
underside sensor areas at the same
time.
When gloves are being worn,
remove the gloves.
■Door lock buzzer
If an attempt to lock the doors using
the smart key system is made when
a door is not fully closed, a buzzer
will sound continuo usly for 5 sec-
onds. Fully close the door to stop
the buzzer, and lock the doors
again.
■Setting the alarm (if equipped)
Locking the doors will set the alarm
system. ( P. 7 0 )
Multi-informa-
tion display/BeepUnlocking func- tion
Exterior: Beeps 3 times
Interior: Pings once
Holding the
driver’s door
handle unlocks
only the driver’s
door.
Holding the front
passenger’s
door handle
unlocks all the
doors.
Exterior: Beeps twice
Interior: Pings once
Holding either
front door handle
unlocks all the
doors.

1203-2. Opening, closing and locking the doors
WARNING
●Do not allow a child to open or
close the back door.
Doing so may cause the back
door to move unexpectedly, or
cause the child’s hands, arms,
head, or neck to be caught by the
closing back door.
■Operating the back door
Observe the following precau-
tions. 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.
●Vehicles without a power back
door: The back door may sud-
denly 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
compartment.
●Vehicles with a power back
door: The back door may sud-
denly shut if it is not opened
fully while on a steep incline.
Make sure that the back door is
secured before using the lug-
gage compartment.
●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.

1213-2. Opening, closing and locking the doors
3
Before driving
■Smart key system
Carry the electronic key to
enable this function.
1 Unlocks all the doors
The doors cannot be unlocked for 3
seconds after the doors are locked.
2Locks all the doors
Check that the d oor is securely
locked.
■Wireless remote control
 P.115
■Operation signals
 P. 1 1 6
■Door lock switches
 P.118
■Opening the back door
Raise the back door while push-
ing up the back door opener
switch.
■Closing the back door
Lower the back door using a
back door handle, and then
push the back door from the out-
side to close it.
WARNING
●Do not pull on the back door
damper stay (vehicles without a
power back door) ( P.122) or
back door spindle (vehicles with
a power back door) ( P.129) to
close the back door, and do not
hang on the back door damper
stay (vehicles without a power
back door) or back door spindle
(vehicles with a power back
door).
Doing so may cause hands to be
caught or the back door damper
stay (vehicles without a power
back door) or back door spindle
(vehicles with a power back door)
to break, causing an accident.
●If a heavy object is attached to
the back door, it may suddenly
shut again after being opened,
causing someone’s hands,
arms, head or neck to be caught
and injured. Do not attach any
accessories other than genuine
Toyota parts to the back door.
Unlocking and locking the
back door from the out-
side
Unlocking and locking the
back door from the inside
Opening/closing the back
door (vehicles without a
power back door)