change key battery TOYOTA HILUX 2021 Owners Manual (in English)

1683-2. Opening, closing and locking the doors
HILUX_OM_OM0K513E_(EE)
Q If the smart entry & start system does not operate properly
O Locking and unlocking the doors: Use the mechanical key. (P. 600)
O Starting the engine: P. 601
Q Electronic key battery depletion
O The standard battery life is 1 to 2 years.
O If the battery becomes low, an alarm will sound in the cabin when the engine
stops.
O 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.
O 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
Q 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.
Q 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. 646)
Q If the smart entry & start system has been deactivated in a customized
setting
O Locking and unlocking the doors:
Use the wireless remote control or mechanical key. ( P. 153, 600)
O Starting the engine and changing engine switch modes: P. 601
O Stopping the engine: P. 225

2274-2. Driving procedures
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Driving
HILUX_OM_OM0K513E_(EE)
QNote 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.
Q 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.
Q 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.
Q Electronic key battery depletion
 P. 168
Q Conditions affecting operation
 P. 166
Q Note for the entry function
 P. 167
Q If the engine does not start
The engine immobilizer system may not have been deactivated. ( P. 115)
Contact any authorized Toyota retailer or Toyota authorized repairer, or any
reliable repairer.

6038-2. Steps to take in an emergency
HILUX_OM_OM0K513E_(EE)
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When trouble arises
QStopping the engine
Shift the shift lever to P (automatic transmission) or N (manual transmission)
and press the engine switch as you normally do when stopping the engine.
Q 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. 516)
Q Alarm (vehicles with alarm for models for model code destination W*,
and Kazakhstan)
Using the mechanical key to lock the doors will not set the alarm system.
If a door is unlocked using the mechanical key and is opened when the alarm
system is set, the alarm may be triggered.
*: See “Checking your vehicle’s model” if you are not sure of which model
your vehicle is. ( P. 12)
Q Changing engine switch modes
Release the brake pedal (automatic transmission) or clutch pedal (manual
transmission) 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. 226)
Q When the electronic key does not work properly
O Make sure that the smart entry & start system has not been deactivated in
the customization setting. If it is off, turn the function on.
(Customizable features: P. 646)
O Check if battery-saving mode is set. If it is set, cancel the function.
( P. 164)
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