Toyota Highlander (2018 year). Manual - part 33

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Conditions affecting operation
The smart key system uses weak radio waves. In the following situations, the
communication between the electronic key and the vehicle may be affected,
preventing the smart key system, wireless remote control and engine immobi-
lizer system from operating properly. (Ways of coping: 

→P. 635)

●

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 device

●

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 keys (that emit radio waves) are 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

●

When the electronic key is placed near a battery charger or electronic
devices

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Note for the entry function

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Even when the electronic key is within the effective range (detection areas),
the system may not operate properly in the following cases:

• The electronic key is too close to the window or outside door handle, near

the ground, or in a high place when the doors are locked or unlocked.

• The electronic key is near the ground or in a high place, or too close to

the rear bumper center when the back door is opened.

• The electronic key is on the instrument panel or floor, or in the auxiliary

box of the driver's side instrument panel, door pockets or glove box when
the engine is started or engine switch modes are changed.

●

Do not leave the electronic key on top of the instrument panel or near the
door pockets when exiting the vehicle. Depending on the radio wave recep-
tion conditions, it may be detected by the antenna outside the cabin and the
door will become lockable from the outside, possibly trapping the electronic
key inside the vehicle.

●

As long as the electronic key is within the effective range, the doors may be
locked or unlocked by anyone. However, only the doors detecting the elec-
tronic key can be used to unlock the vehicle.

●

Even if the electronic key is not inside the vehicle, it may be possible to start
the engine if the electronic key is near the window.

●

The doors may unlock or lock if a large amount of water splashes on the
door handle, such as in the rain or in a car wash when the electronic key is
within the effective range. (The doors will automatically be locked after
approximately 60 seconds if the doors are not opened and closed.)

●

If the wireless remote control is used to lock the doors when the electronic
key is near the vehicle, there is a possibility that the door may not be
unlocked by the entry function. (Use the wireless remote control to unlock
the doors.)

●

Touching the door lock or unlock sensor while wearing gloves may prevent
lock or unlock operation. Remove the gloves and touch the lock or unlock
sensor again.

●

When the lock operation is performed using the lock sensor, recognition sig-
nals will be shown up to two consecutive times. After this, no recognition
signals will be given.

●

If the door handle becomes wet while the electronic key is within the effec-
tive range, the door may lock and unlock repeatedly. In that case, follow the
following correction procedures to wash the vehicle:

• Place the electronic key in a location 6 ft. (2 m) or more away from the

vehicle. (Take care to ensure that the key is not stolen.)

• Set the electronic key to battery-saving mode to disable the smart key

system. (

→P. 143)

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3-2. Opening, closing and locking the doors

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If the electronic key is inside the vehicle and a door handle becomes wet
during a car wash, a message may be shown on the multi-information dis-
play and a buzzer will sound outside the vehicle. To turn off the alarm, lock
all the doors.

●

The lock sensor may not work properly if it comes into contact with ice,
snow, mud, etc. Clean the lock sensor and attempt to operate it again, or
use the lock sensor on the lower part of the door handle.

●

A sudden handle operation or a handle operation immediately after entering
the effective range may prevent the doors from being unlocked. Touch the
door unlock sensor and check that the doors are unlocked before pulling the
door handle again.

●

Unlocking the vehicle may take more time if another electronic key is within
the effective range.

■

When the vehicle is not driven for extended periods

●

To prevent theft of the vehicle, do not leave the electronic key within 6 ft. (2
m) of the vehicle.

●

The smart key system can be deactivated in advance. (

→P. 680)

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To operate the system properly
Make sure to carry the electronic key when operating the system. Do not get
the electronic key too close to the vehicle when operating the system from the
outside of the vehicle.

Depending on the position and holding condition of the electronic key, the key
may not be detected correctly and the system may not operate properly. (The
alarm may go off accidentally, or the door lock prevention function may not
operate.)

■

If the smart key system does not operate properly

●

Locking and unlocking the doors: Use the mechanical key. (

→P. 635)

●

Starting the engine: 

→P. 636

■

Customization
Settings (e. g. smart key system) can be changed. 
(Customizable features: 

→P. 680)

■

If the smart key system has been deactivated in a customized setting

●

Locking and unlocking the doors:
Use the wireless remote control or mechanical key. (

→P. 116, 635)

●

Starting the engine and changing engine switch modes: 

→P. 636

●

Stopping the engine: 

→P. 222

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Certification for the smart key system



For vehicles sold in the U.S.A.

FCC ID: HYQ23AAB

FCC ID: HYQ14FBA

NOTE:
This device complies with part 15 of the FCC Rules. Operation is subject to
the following two conditions: (1) This device may not cause harmful interfer-
ence, and (2) this device must accept any interference received, including
interference that may cause undesired operation.

FCC WARNING:
Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment. 



For vehicles sold in Canada

NOTE:
This device complies with Industry Canada’s licence-exempt RSSs. Opera-
tion is subject to the following two conditions: 
(1) This device may not cause interference; and 
(2) This device must accept any interference, including interference that may
cause undesired operation of the device.



For vehicles sold in the U.S.A.

FCC ID: NI4TMLF12-1

This device complies with part 15 of the FCC Rules. Operation is subject to
the following two conditions: (1) This device may not cause harmful interfer-
ence; and (2) This device must accept any interference received, including
interference that may cause undesired operation.

Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment. 



For vehicles sold in Canada

This device complies with Industry Canada licence-exempt RSSs. Operation
is subject to the following two conditions: (1) This device may not cause inter-
ference; and (2) This device must accept any interference, including interfer-
ence that may cause undesired operation of the device.

NOTE:

Le présent appareil est conforme aux CNR d'lndustrie Canada appli-
cables aux appareils radio exempts de licence. L'exploitation est autori-
sée aux deux conditions suivantes: (1) l'appareil ne doit pas produire de
brouillage; (2) l'utilisateur de l'appareil doit accepter tout brouillage
radioélectrique subi, même si le brouillage est susceptible d'en compro-
mettre le fonctionnement.