2017 TOYOTA HIGHLANDER key battery

5517-3. Do-it-yourself maintenance
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Maintenance and care
HIGHLANDER_U (OM0E017U)
■Use a CR2016 (vehicles without a sm art key system) or CR2032 (vehicles
with a smart key system) lithium battery
● Batteries can be purchased at your Toyota dealer, local electrical appliance
shops or camera stores.
● Replace only with the same or equivalent type recommended by the manu-
facturer.
● Dispose of used batteries according to local laws.
■ If the key battery is depleted
The following symptoms may occur:
●The smart key system (if equipped) and wireless remote control will not
function properly.
● The operational range will be reduced.
WARNING
■Removed battery and other parts
These parts are small and if swallowed by a child, they can cause choking.
Keep away from children. Failure to do so could result in death or serious
injury.
NOTICE
■For normal operation after replacing the battery
Observe the following precautions to prevent accidents:
● Always work with dry hands.
Moisture may cause the battery to rust.
● Do not touch or move any other component inside the remote control.
● Do not bend either of the battery terminals.

571
8When trouble arises
HIGHLANDER_U (OM0E017U)8-1. Essential information
Emergency flashers .......... 572
If your vehicle has to be stopped in an
emergency ...................... 573
8-2. Steps to take in an emergency
If your vehicle needs to be towed ..................... 575
If you think something is wrong .......................... 579
Fuel pump shut off system ............................ 580
If a warning light turns on or a warning buzzer
sounds ............................ 581
If a warning message is displayed ..................... 591
If you have a flat tire.......... 608
If the engine will not start ........................... 633
If the electronic key does not operate properly........ 635
If the vehicle battery is discharged ................... 638
If your vehicle overheats ........................ 644
If the vehicle becomes stuck ............................... 647

6058-2. Steps to take in an emergency
8
When trouble arises
HIGHLANDER_U (OM0E017U)
OnceContin-
uous
An attempt was made to lock
either front door by opening a
door and putting the inside lock
button into the lock position,
then closing the door with the
electronic key still inside the
vehicle.
→Retrieve the electronic key
from the vehicle and lock
the doors again.
Once⎯
The electronic key has a low
battery.
→Replace the electronic key
battery. ( →P. 549)
Once⎯
The steering lock could not be
released within 3 seconds of
the engine switch being
pressed.
→Press the engine switch
while depressing the brake
pedal and moving the
steering wheel left and
right.
Once⎯
Indicates a malfunction in the
smart key system
→Have the vehicle inspected
by your Toyota dealer.
Interior
buzzerExterior buzzerWarning messageDetails/Actions
(Flashes)
(Flashes)
(Flashes)

6338-2. Steps to take in an emergency
8
When trouble arises
HIGHLANDER_U (OM0E017U)
One of the following may be the cause of the problem:
●There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.
● The engine may be flooded.
Try to restart the engine again following correct starting procedures.
(→ P. 218, 221)
● There may be a malfunction in the engine immobilizer system.
(→ P. 80)
One of the following may be the cause of the problem:
● The battery may be discharged. ( →P. 638)
● The battery terminal connections may be loose or corroded.
The engine starting system may be malfunctioning due to an electrical
problem such as electronic key battery depletion or a blown fuse.
However, an interim measure is available to start the engine.
( → P. 634)
If the engine w ill not start
If the engine will not start eve n though correct starting proce-
dures are being followed ( →P. 218, 221), consider each of the fol-
lowing points:
The engine will not start even though the starter motor operates
normally.
The starter motor turns over slowly, the interior lights and head-
lights are dim, or the horn does not sound or sounds at a low
volume.
The starter motor does not turn over (vehicles with a smart key
system)

6348-2. Steps to take in an emergency
HIGHLANDER_U (OM0E017U)
One of the following may be the cause of the problem:
●One or both of the battery terminals may be disconnected.
● The battery may be discharged. ( →P. 638)
● There may be a malfunction in the steering lock system.
Contact your Toyota dealer if the problem cannot be repaired, or if repair
procedures are unknown.
When the engine does not start, the following steps can be used as an
interim measure to start the engine if the engine switch is functioning
normally:
Set the parking brake.
Shift the shift lever to P.
Turn the engine switch to ACCESSORY mode.
Press and hold the engine switch for about 15 seconds while
depressing the brake pedal firmly.
Even if the engine can be started using the above steps, the system
may be malfunctioning. Have the ve hicle inspected by your Toyota
dealer.
The starter motor does not turn over, the interior lights and head-
lights do not turn on, or the horn does not sound.
Emergency start function (vehicles with a smart key system)
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6358-2. Steps to take in an emergency
8
When trouble arises
HIGHLANDER_U (OM0E017U)
Use the mechanical key (→P. 1 1 0 )
in order to perform the following
operations:
Locks all the doors
Closes the windows and moon
roof
*1 (turn and hold)*2
(→ P. 174, 177)
Unlocks the door
Turning the key rearward unlocks the driver’s door. Turning the key once
again within 5 seconds unlocks the other doors.
Opens the windows and moon roof*1 (turn and hold)*2
( → P. 174, 177)
*1: If equipped
*2: This setting must be customized at your Toyota dealer.
If the electronic key d oes not operate prop-
erly (vehicles with a smart key system)
If communication between the electronic key and vehicle is
interrupted ( →P. 144) or the electronic key cannot be used
because the battery is depleted, the smart key system and wire-
less remote control cannot be used. In such cases, the doors
can be opened and the engine ca n be started by following the
procedure below.
Locking and unlocking the doors and key linked functions
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6378-2. Steps to take in an emergency
8
When trouble arises
HIGHLANDER_U (OM0E017U)
■Stopping the engine
Shift the shift lever to P and press the engine switch as you normally do when
stopping the engine.
■ Replacing the key battery
As the above procedure is a temporary measure, it is recommended that the
electronic key battery be replaced immediately when the battery is depleted.
(→P. 549)
■ Changing engine switch modes
Release the brake pedal and press the engine switch in step above.
The engine does not start and modes will be changed each time the switch is
pressed. ( →P. 222)
■ When the electronic key does not work properly
●Make sure that the smart key system has not been deactivated in the cus-
tomization setting. If it is off, turn the function on.
(Customizable features →P. 680)
● Check if battery-saving mode is set. If it is set, cancel the function.
(→P. 143)
WARNING
■ When using the mechanical key an d operating the power windows or
moon roof
Operate the power window or moon roof after checking to make sure that
there is no possibility of any passenger having any of their body parts
caught in the window or moon roof.
Also, do not allow children to operate the mechanical key. It is possible for
children and other passengers to get caught in the power window or moon
roof.
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6388-2. Steps to take in an emergency
HIGHLANDER_U (OM0E017U)
If you have a set of jumper (or booster) cables and a second vehicle
with a 12-volt battery, you can jump start your vehicle by following the
steps below.
Vehicles with an alarm, confirm
that the master key (vehicles
without a smart key system) or
electronic key (vehicles with a
smart key system) is being car-
ried.
When connecting the jumper (or
booster) cables, depending on the
situation, the alarm may activate
and doors locked.
(→P. 84)
Open the hood. ( →P. 516)
Vehicles with 3.5 L V6 (2GR-
FKS) engine: Remove the
engine cover.
If the vehicle bat tery is discharged
The following procedures may be used to start the engine if the
vehicle’s battery is discharged.
You can also call your Toyota de aler or a qualified repair shop.
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