2016 TOYOTA 4RUNNER change key battery

1974-2. Driving procedures
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Driving
4RUNNER (U)_(OM35B23U)■When the steering lock cannot be released
■Steering lock motor overheating prevention
To prevent the steering lock motor from overheating, the motor may be sus-
pended if the engine is turned on and off repeatedly in a short period of time.
In this case, refrain from operating the engine. After about 10 seconds, the
steering lock motor will resume functioning.
■When the engine switch indicator flashes in amber
The system may be malfunctioning. Have the vehicle inspected by your
Toyota dealer immediately.
■If the electronic key battery is depleted
P. 379
■Operation of the engine switch
When operating the engine switch, one short, firm press is enough. If the
switch is pressed improperly, the engine may not start or the engine switch
mode may not change. It is not necessary to press and hold the switch. The green indicator light on the engine
switch will flash. Press the engine switch
again while turning the steering wheel left
and right.

2955-2. Using the interior lights
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Interior features
4RUNNER (U)_(OM35B23U)
■Illuminated entry system
Vehicles without a smart key system
The lights automatically turn on/off according to the engine switch position,
whether the doors are locked/unlocked, and whether the doors are open/
closed.
Vehicles with a smart key system
The lights automatically turn on/off according to engine switch mode, the
presence of the electronic key, whether the doors are locked/unlocked, and
whether the doors are opened/closed.
■To prevent battery discharge
If the following lights remain on, the lights will go off automatically after 20
minutes:
●Engine switch light
●Front interior light
●Rear interior light
●Personal lights
●Footwell lights
●Inside door handle lights
●Door courtesy lights
■Customization
Setting (e.g. the time elapsed before lights turn off) can be changed.
(Customizable features: P. 485)
NOTICE
■To prevent battery discharge
Do not leave the lights on longer than necessary when the engine is not
running.

3416-2. Maintenance
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Maintenance and care
4RUNNER (U)_(OM35B23U)■Resetting the message indicating maintenance is required (U.S.A. only)
After the required maintenance is performed according to the maintenance
schedule, please reset the message.
To reset the message, follow the procedures described below:
Turn the engine switch off with the trip meter A reading shown. (P. 84)
Vehicles without a smart key system:
While pressing the display change button (P. 83), turn the engine switch
to the “ON” position (do not start the engine because reset mode will be
canceled).
Vehicles with a smart key system:
While pressing the display change button (P. 83), turn the engine switch
to the IGNITION ON mode (do not start the engine because otherwise the
reset mode will be canceled).
Continue to press and hold the button until the trip meter displays “000000”.
■Allow inspection and repairs to be performed by a Toyota dealer
●Toyota technicians are well-trained specialists and are kept up to date with
the latest service information. They are well informed about the operations
of all systems on your vehicle.
●Keep a copy of the repair order. It proves that the maintenance that has
been performed is under warranty coverage. If any problem should arise
while your vehicle is under warranty, your Toyota dealer will promptly take
care of it.
CAUTION
■If your vehicle is not properly maintained
Improper maintenance could result in serious damage to the vehicle and
possible death or serious injury.
■Handling of the battery
●Engine exhaust, some of its constituents, and a wide variety of automobile
components contain or emit chemicals known to the State of California to
cause cancer and birth defects and other reproductive harm. Work in a
well ventilated area.
●Oils, fuels and fluids contained in vehicles as well as waste produced by
component wear contain or emit chemicals known to the State of Califor-
nia to cause cancer and birth defects or other reproductive harm. Avoid
exposure and wash any affected area immediately.
●Battery posts, terminals and related accessories contain lead and lead
compounds which are known to cause brain damage. Wash your hands
after handling. (P. 360)
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4477-2. Steps to take in an emergency
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When trouble arises
4RUNNER (U)_(OM35B23U)
Ensure that the shift lever is in P and depress the brake pedal.
Touch the Toyota emblem side
of the electronic key to the
engine switch.
If any of the doors is opened or
closed while the key is being
touched to the switch, an alarm will
sound to indicate that the start
function cannot detect the key.
Press the engine switch.
In the event that the engine still cannot be started, contact your Toyota
dealer.
■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. 380)
■Changing engine switch modes
Within 10 seconds of the buzzer sounding, release the brake pedal and press
the engine switch.
The engine does not start and modes will be changed each time the switch is
pressed.(P. 195)
Starting the engine
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CAUTION
■When using the mechanical key and operating the power windows,
power back window or moon roof
Operate the power windows, power back window or moon roof after check-
ing 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 windows, power
back window or moon roof.