2019 TOYOTA HIGHLANDER key battery

TABLE OF CONTENTS6
HIGHLANDER_U7-1. Maintenance and care
Cleaning and protecting the vehicle exterior .......... 502
Cleaning and protecting the vehicle interior ........... 506
7-2. Maintenance Maintenance requirements ................... 509
General maintenance ........ 512
Emission inspection and maintenance (I/M)
programs ......................... 515
7-3. Do-it-yourself maintenance
Do-it-yourself service precautions ..................... 516
Hood.................................. 518
Positioning a floor jack ...... 520
Engine compartment ......... 521
Tires .................................. 533
Tire inflation pressure........ 544
Wheels .............................. 547
Air conditioning filter .......... 549
Wireless remote control/ electronic key battery ...... 551
Checking and replacing fuses ................ 554
Light bulbs ......................... 558 8-1. Essential information
Emergency flashers ........... 574
If your vehicle has to be stopped in an
emergency....................... 575
8-2. Steps to take in an emergency
If your vehicle needs to be towed ...................... 577
If you think something is wrong ........................... 581
Fuel pump shut off system ............................. 582
If a warning light turns on or a warning buzzer
sounds ............................. 583
If a warning message is displayed...................... 593
If you have a flat tire .......... 610
If the engine will not start ................................. 635
If the electronic key does not operate
properly ........................... 637
If the vehicle battery is discharged ................... 640
If your vehicle overheats......................... 646
If the vehicle becomes stuck ................................ 649
7Maintenance and care8When trouble arises

881-3. Theft deterrent system
HIGHLANDER_U
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 ala rm is
set:
● A locked door is unlocked or opened in any way other than using
the entry function (vehicles wit h smart key system), wireless r emote
control or mechanical key.
● The hood is opened.
● The locked glass hatch (if equipped) is opened in any way other
than using the entry function (vehicles with smart key system).
● The battery is reconnected.
Close the doors, glass hatch (if
equipped) and hood, and lock all
the doors. The system will be set
automatically after 30 seconds.
The indicator light changes from
being on to flashing when the sys-
tem is set.
Alar m
The alarm
: If equipped
Setting the alarm system

1173-1. Key information
3
Operation of each component
HIGHLANDER_U■
When required to leave the vehicle’s key with a parking attenda nt (vehi-
cles with a smart key system)
Lock the glove box as circumstances demand. (P. 467)
Remove the mechanical key for your own use and provide the attendant with
the electronic key only.
■ If you lose your keys
New genuine keys can be made by your Toyota dealer using the ot her key
(vehicles without a smart key system) or the other mechanical k ey (vehicles
with a smart key system) and the key number stamped on your key number
plate. Keep the plate in a safe place such as your wallet, not in the vehicle.
■ When riding in an aircraft
When bringing a key with wireless remote control function onto an aircraft,
make sure you do not press any buttons on the key while inside the aircraft
cabin. If you are carrying the key in your bag etc., ensure tha t the buttons are
not likely to be pressed accidentally. Pressing a button may cause the key to
emit radio waves that could interfere with the operation of the aircraft.
■ Conditions affecting operation
Vehicles without a smart key system
The wireless remote control function may not operate normally i n the follow-
ing situations:
● When the wireless key battery is depleted
● Near a TV tower, electric power plant, gas station, radio stati on, large dis-
play, airport or other facility that generates strong radio wav es or electrical
noise
● When carrying a portable radio, cellular phone or other wireles s communi-
cation device
● When multiple wireless keys are in the vicinity
● When the wireless key is in contact with, or is covered by a me tallic object
● When a wireless key (that emits radio waves) is being used near by
● When the wireless key has been left near an electrical applianc e such as a
personal computer
● If window tint with a metallic content or metallic objects are attached to the
rear window
Vehicles with a smart key system
P. 150

1183-1. Key information
HIGHLANDER_U■
Key battery depletion
Vehicles without a smart key system
If the wireless remote control function does not operate, the b attery may be
depleted. Replace the battery when necessary. ( P. 551)
Vehicles with a smart key system
● The standard battery life is 1 to 2 years.
● If the battery becomes low, an alarm will sound in the cabin wh en the engine
stops. ( P. 607)
● 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. 551)
• The smart key system or the wireless remote control does not o perate.
• 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 3 ft. (1
m) of the following electrical appliances that produce a magnet ic field:
•TVs
• Personal computers
• Cellular phones, cordless phones and battery chargers
• Recharging cellular phones or cordless phones
• Table lamps
• Induction cookers
■ When the key battery is fully depleted
P. 551
■ Confirmation of the registered key number (vehicles with a smar t key
system)
The number of electronic keys already registered to the vehicle can be con-
firmed. Ask your Toyota dealer for details.
■ If a wrong key is used (vehicles with a smart key system)
The key cylinder rotates freely to isolate inside mechanism.
■ Customization
Settings (e.g. wireless remote control system) can be changed.
(Customizable features: P. 682)

1243-2. Opening, closing and locking the doors
HIGHLANDER_U■
When the door cannot be locked by the lock sensor on the upper part of
the front door handle (veh icles with a smart key system)
■ Door lock buzzer (vehicles with a smart key system)
If an attempt to lock the doors using the entry function or wir eless remote
control is made when a door is not fully closed, a buzzer will sound continu-
ously for 5 seconds. Fully close the door to stop the buzzer, a nd lock the
doors again.
■ Wireless reservation lock (vehicles without a smart key system)
If a door is not fully closed and the wireless remote control i s used to lock the
doors, the doors other than the open door will be locked. The o pen door will
be locked after it is fully closed.
■ Power back door reservation lo ck (vehicles with a power back do or)
Vehicles without a smart key system
If the wireless remote control is used to lock the doors while the power back
door is closing with all side doors fully closed, the side door s are locked. The
back door will be locked when it is fully closed.
Vehicles with a smart key system
If the wireless remote control is used to lock the doors while the power back
door is closing with all side doors fully closed, a buzzer will sound and the
emergency flashers will flash to indicate that the reservation lock is activated.
At this time the side doors are locked. The back door will be l ocked when it is
fully closed.
■ Alarm (if equipped)
Locking the doors will set the alarm system. ( P. 88)
■ If the smart key system or the wireless remote control does not operate
properly
Vehicles with a smart key system: Use the mechanical key to loc k and unlock
the doors. ( P. 637)
Replace the key battery with a new one if it is depleted. ( P. 551)
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.

1383-2. Opening, closing and locking the doors
HIGHLANDER_U
WARNING
■Power back door (if equipped)
Observe the following precautions when operating the power back door.
Failure to do so may cause death or serious injury.
● Check the safety of the surrounding area to make sure there are no obsta-
cles or anything that could cause any of your belongings to get caught.
● If anyone is in the vicinity, make sure they are safe and let t hem know that
the back door is about to open or close.
● If the power back door system is turned off with the main switch while the
back door is operating automatically, the automatic operation i s stopped.
The back door then has to be operated manually. Take extra care when on
an incline, as the back door may open or close unexpectedly.
● If the operating conditions of the power back door are no longe r met, a
buzzer may sound and the back door may stop opening or closing. The
back door then has to be operated manually. Take extra care whe n on an
incline, as the back door may open or close abruptly.
● On an incline, the back door may suddenly shut after it opens. Make sure
the back door is fully open and secure.
● In the following situations, the power back door may detect an abnormality
and automatic operation may be stopped. In this case, the back door has
to be operated manually. Take extra care when on an incline, as the back
door may open or close abruptly.
• When the back door contacts an obstacle
• When the battery voltage suddenly drops, such as when the engi ne
switch is turned to the “ON” position (vehicles without a smart key sys-
tem) or IGNITION ON mode (vehicles with a smart key system) or the
engine is started during automatic operation
● If a bicycle carrier or similar object is attached to the back door, the power
back door may not operate, causing itself to malfunction, or th e back door
may move in the closing direction after being opened, causing s omeone’s
hands, head or neck to be caught and injured. When installing a n acces-
sory part to the back door, ask your Toyota dealer for details.

1493-2. Opening, closing and locking the doors
3
Operation of each component
HIGHLANDER_U■
Battery-saving function
The battery-saving function will be activated in order to preve nt the electronic
key battery and the vehicle battery from being discharged while the vehicle is
not in operation for a long time.
● In the following situations, the smart key system may take some time to
unlock the doors.
• The electronic key has been left in an area of approximately 6 ft. (2 m) of
the outside of the vehicle for 10 minutes or longer.
• The smart key system has not been used for 5 days or longer.
● If the smart key system has not been used for 14 days or longer , the doors
cannot be unlocked at any doors except the driver’s door. In th is case, take
hold of the driver’s door handle, or use the wireless remote co ntrol or the
mechanical key, to unlock the doors.
■ Electronic Key Battery-Saving Function
When battery-saving mode is set, battery depletion is minimized by stopping
the electronic key from receiving radio waves.
Press twice while pressing and
holding . Confirm that the electronic
key indicator flashes 4 times.
While the battery-saving mode is set, the
smart key system cannot be used. To
cancel the function, press any of the elec-
tronic key buttons.

1503-2. Opening, closing and locking the doors
HIGHLANDER_U■
Conditions affecting operation
The smart key system uses weak radio waves. In the following si tuations, the
communication between the electronic key and the vehicle may be affected,
preventing the smart key system, wireless remote control and en gine immobi-
lizer system from operating properly. (Ways of coping: P. 637)
● When the electronic key battery is depleted
● Near a TV tower, electric power plant, gas station, radio stati on, large dis-
play, airport or other facility that generates strong radio wav es 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 ele ctronic
devices