2023 TOYOTA HILUX key battery

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7-1. Maintenance and care
Cleaning and protecting
the vehicle exterior ..........472
Cleaning and protecting
the vehicle interior ...........476
7-2. Maintenance
Maintenance
requirements....................479
7-3. Do-it-yourself maintenance
Do-it-yourself service
precautions ......................482
Hood ..................................484
Engine compartment..........486
Tires ...................................507
Tire inflation pressure ........510
Wheels ...............................512
Air conditioning filter ..........514
Wireless remote control/
electronic key battery.......516
Checking and
replacing fuses ................520
Light bulbs .........................525
8-1. Essential information
Emergency flashers ...........554
If your vehicle has to
be stopped in an
emergency .......................555
If the vehicle is
submerged or water on
the road is rising ..............557
8-2. Steps to take in an
emergency
If your vehicle needs
to be towed ..................... 559
If you think something is
wrong .............................. 564
Fuel pump shut off
system (gasoline engine
only) ................................ 565
If a warning light turns on
or a warning buzzer
sounds ............................ 566
If a warning message is
displayed ......................... 575
If you have a flat tire .......... 581
If the engine will not
start ................................. 598
If the electronic key does
not operate properly
(vehicles with smart
entry & start system) ....... 600
If the vehicle battery is
discharged ...................... 604
If your vehicle
overheats ........................ 610
If you run out of fuel
and the engine stalls
(diesel engine only) ......... 614
If the vehicle becomes
stuck................................ 615
7Maintenance and care
8When trouble arises

1493-1. Key information
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Operation of each component
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■ If you lose your keys
New genuine keys can be made by any authorized Toyota retailer or Toyota
authorized repairer, or any reliable repairer using a master key (vehicles with-
out smart entry & start system) or the other key of the same type (vehicles
with smart entry & start 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 (type B and C)
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 that 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.
■ Key battery depletion
Vehicles without smart entry & start system
If the wireless remote control function does not operate, the battery may be
depleted. Replace the battery when necessary. ( P. 516)
Vehicles with smart entry & start system
 P. 166
■ If a message regarding the state of the electronic key or engine switch
mode, etc. is shown
To prevent trapping the electronic key in side the vehicle, leaving the vehicle
without turning off the engine switch or other passengers from unintentionally
taking the key out of the vehicle, etc., a message that prompts the user to
confirm the state of the electronic key or engine switch mode may be shown
on the multi-information display. In those cases, follow the instructions on the
display immediately.
■ If “Key battery low” is shown on the multi-information display
The electronic key has a low battery. Replace the electronic key battery.
■ Replacing the electronic key battery
 P. 516
■ Confirmation of the registered key number
The number of keys already registered to the vehicle can be confirmed. Ask
any authorized Toyota retailer or Toyota authorized repairer, or any reliable
repairer for details.

1523-2. Opening, closing and locking the doors
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◆Key
Vehicles without smart entry & start system
Vehicles without power door
lock system:
Locks the door
Unlocks the door
Vehicles with power door lock
system:
Locks all the doors
Unlocks all the doors
Vehicles with smart entry & start system
The doors can also be locked and unlocked with the mechanical
key. ( P. 600)
■Operation signals
A buzzer (if equipped) sounds and the em ergency flashers flash to indicate
that the doors have been locked/unlocked using the smart entry & start sys-
tem or the wireless remote control. (Locked: once; Unlocked: twice)
■ Security feature
If a door is not opened within approximately 30 seconds after the vehicle is
unlocked using the smart entry & start system or the wireless remote control,
the security feature automatically locks the vehicle again.
■ Door lock buzzer (vehicles with wireless remote control and smart entry
& start system)
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.
■ If the entry function (vehicles with smart entry & start system) or the
wireless remote control (if equipped) does not operate properly
● Vehicles without smart entry & start system: Use the key to lock and unlock
the doors. ( P. 152)
● Vehicles with smart entry & start system: Use the mechanical key to lock
and unlock the doors. ( P. 600)
● Replace the battery with a new one if it is depleted. (P. 516)
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1623-2. Opening, closing and locking the doors
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■ Effective range (areas within which the electronic key is detected)
When starting the engine or changing engine switch modes
The system can be operated when the electronic key is inside the vehicle.
(The electronic key is not detected when it is on the floor or on the instru-
ment panel.)
■ Battery-saving function
The battery-saving function will be acti vated in order to prevent the battery
from being discharged while the vehicle is not in operation for a long time.
■ Electronic Key Battery-Saving Function
When battery-saving mode is set, battery depletion is minimized by stopping
the electronic key from receiving radio waves.
When locking or unlocking the doors
The system can be operated when the
electronic key is within about 0.7 m (2.3
ft.) of either of the lock/unlock button on
the outside door handle. (Only the
doors detecting the key can be oper-
ated.)
Press twice while pressing and
holding . Confirm that the electronic
key indicator flashes 4 times.
While the battery-saving mode is set, the
smart entry & start system cannot be
used. To cancel the function, press any of
the electronic key buttons.

1643-2. Opening, closing and locking the doors
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■ Conditions affecting operation
The smart entry & start system uses weak radio waves. In the following situa-
tions, the communication between the electronic key and the vehicle may be
affected, preventing the smart entry & start system, wireless remote control
and engine immobilizer system from operating properly.
(Ways of coping: P. 600)
● 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 multiple electronic keys are in the vicinity
● 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 pers onal 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

1663-2. Opening, closing and locking the doors
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■ If the smart entry & start system does not operate properly
● Locking and unlocking the doors: Use the mechanical key. (P. 600)
● Starting the engine: P. 601
■ Electronic key battery depletion
● The standard battery life is 1 to 2 years.
● If the battery becomes low, an alarm will sound in the cabin when the engine
stops.
● 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. 516)
• The smart entry & start system or the wireless remote control does not
operate.
• 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 1 m (3
ft.) of the following electrical appliances that produce a magnetic field:
•TVs
• Personal computers
• Cellular phones, cordless phones and battery chargers
• Recharging cellular phones or cordless phones
• Table lamps
• Induction cookers
■ If “Key left inside vehicle” is shown on the multi-information display
An attempt was made to lock the doors using the smart entry & start system
while the electronic key was still inside the vehicle, or 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 by pulling on the outside door
handle with the electronic key still inside the vehicle.
Retrieve the electronic key from the vehicle and lock the doors again.
■ Customization that can be configured at any authorized Toyota retailer
or Toyota authorized repairer, or any reliable repairer
Settings (e.g. smart entry & start system) can be changed.
(Customizable features: P. 647)
■ If the smart entry & start system has been deactivated in a customized
setting
● Locking and unlocking the doors:
Use the wireless remote control or mechanical key. ( P. 151, 600)
● Starting the engine and changing engine switch modes: P. 601
● Stopping the engine: P. 224

2214-2. Driving procedures
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Driving
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■ When the steering lock cannot be released
■ Key reminder function
A buzzer sounds if the driver’s door is opened while the engine switch is in
the “LOCK” or “ACC” position to remind you to remove the key.
When starting the engine, the engine
switch may seem stuck in the “LOCK”
position. To free it, turn the key while turn-
ing the steering wheel slightly left and
right.
WARNING
■ When starting the engine
Always start the engine while sitting in the driver’s seat. Do not depress the
accelerator pedal while starting the engine under any circumstances.
Doing so may cause an accident resulting in death or serious injury.
■ Caution when driving
Do not turn the engine switch to the “LOCK” position while driving.
If in an emergency, you must turn the engine off while the vehicle is moving,
turn the engine switch only to the “ACC” position to stop the engine. An
accident may result if the engine is stopped while driving. ( P. 555)
NOTICE
■To prevent battery discharge
Do not leave the engine switch in the “ACC” or “ON” position for long peri-
ods of time without the engine running.
■ When starting the engine
● Do not crank the engine for more than 30 seconds at a time. This may
overheat the starter and wiring system.
● Do not race a cold engine.
● If the engine becomes difficult to start or stalls frequently, have your vehi-
cle checked by any authorized Toyota retailer or Toyota authorized
repairer, or any reliable repairer immediately.

2264-2. Driving procedures
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■Note for the electronic key
Carry the electronic key on your person, for example in your pocket.
The smart entry & start system does not operate properly if the electronic key
is on the floor or the instrument panel, or in the door pockets, cup holders or
auxiliary boxes.
■ Auto power off function
Vehicles with automatic transmission
If the vehicle is left in ACCESSORY mode for more than 20 minutes or IGNI-
TION ON mode (the engine is not running) for more than an hour with the
shift lever in P, the engine switch will automatically turn off. However, this
function cannot entirely prevent battery discharge. Do not leave the vehicle
with the engine switch in ACCESSORY or IGNITION ON mode for long peri-
ods of time when the engine is not running.
Vehicles with manual transmission
If the vehicle is left in ACCESSORY mode for more than 20 minutes or IGNI-
TION ON mode (the engine is not running) for more than an hour, the engine
switch will automatically turn off. However, this function cannot entirely pre-
vent battery discharge. Do not leave the vehicle with the engine switch in
ACCESSORY or IGNITION ON mode for long periods of time when the
engine is not running.
■ Operation of the engine switch
If the switch is not pressed shortly and firmly, the engine switch mode may
not change or the engine may not start.
■ Electronic key battery depletion
 P. 166
■ Conditions affecting operation
 P. 164
■ Note for the entry function
 P. 165
■ If the engine does not start
The engine immobilizer system may not have been deactivated. ( P. 113)
Contact any authorized Toyota retailer or Toyota authorized repairer, or any
reliable repairer.