Page 358 of 530
3566-3. Do-it-yourself maintenance
4RUNNER (U)_(OM35A83U)
Pull the hood lock release lever.
The hood will pop up slightly.
Push the auxiliary catch lever to
the left and lift the hood.
Hood
Release the lock from the inside of the vehicle to open the hood.
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2
CAUTION
■Pre-driving check
Check that the hood is fully closed and locked.
If the hood is not locked properly, it may open while the vehicle is in motion
and cause an accident, which may result in death or serious injury.
Page 360 of 530
3586-3. Do-it-yourself maintenance
4RUNNER (U)_(OM35A83U)■
Removing the engine compartment cover
■Installing the clips
Push up center portion
Insert
Press
Engine compartment cover
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2
3
NOTICE
■After installing an engine compartment cover
Make sure that the cover is securely installed in its original position.
Page 370 of 530

3686-3. Do-it-yourself maintenance
4RUNNER (U)_(OM35A83U)■
After recharging/reconnecting the ba ttery (vehicles with a smart key sys-
tem)
The engine may not start. Follow the procedure below to initialize the system.
Shift the shift lever to P.
Open and close any of the doors.
Restart the engine.
● Unlocking the doors using the smart key system may not be possible imme-
diately after reconnecting the battery. If this happens, use the wireless
remote control or the mechanical key to lock/unlock the doors.
● Start the engine with the engine switch in ACCESSORY mode. The engine
may not start when the engine switch turned from off. However, the engine
will operate normally from the second attempt.
● The engine switch mode is recorded by the vehicle. If the battery is recon-
nected, the vehicle will return the engine switch mode to the status it was in
before the battery was disconnected. Make sure to turn off the engine
before disconnect the battery. Take extra care when connecting the battery
if the engine switch mode prior to discharge is unknown.
If the system will not start even after multiple attempts, contact your Toyota
dealer.
CAUTION
■ Chemicals in the battery
Batteries contain poisonous and corrosive sulfuric acid and may produce
hydrogen gas which is flammable and explosive. To reduce the risk of death
or serious injury, take the following precautions while working on or near the
battery:
● Do not cause sparks by touching the battery terminals with tools.
● Do not smoke or light a match near the battery.
● Avoid contact with eyes, skin and clothes.
● Never inhale or swallow electrolyte.
● Wear protective safety glasses when working near the battery.
● Keep children away from the battery.
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2
3
Page 387 of 530
3856-3. Do-it-yourself maintenance
6
Maintenance and care
4RUNNER (U)_(OM35A83U)
●Flathead screwdriver
● Small flathead screwdriver
● Lithium battery CR2016 (vehicles without a smart key system), or
CR1632 (vehicles with a smart key system)
Remove the cover.
To prevent damage to the key,
cover the tip of the screwdriver with
a rag.
Remove the module.
Open the case cover using a
coin protected with tape etc.
and remove the depleted bat-
tery.
Insert a new battery with the “+”
terminal facing up.
Wireless remote control/electronic key bat-
ter y
Replace the battery with a new one if it is depleted.
You will need the following items:
Replacing the battery (vehicl es without a smart key system)
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2
3
Page 389 of 530

3876-3. Do-it-yourself maintenance
6
Maintenance and care
4RUNNER (U)_(OM35A83U)
■Use a CR2016 (vehicles without a sm art key system) or CR1632 (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 electronic key battery is depleted
The following symptoms may occur:
●The smart key system and wireless remote control will not function properly.
● The operational range will be reduced.
CAUTION
■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.
Page 395 of 530
3936-3. Do-it-yourself maintenance
6
Maintenance and care
4RUNNER (U)_(OM35A83U)■
Headlight low beams
Turn the cover counterclock-
wise and remove it.
Turn the bulb base counter-
clockwise.
Unplug the connector while
pulling the lock release.
Replacing light bulbs
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2
3
Page 397 of 530
3956-3. Do-it-yourself maintenance
6
Maintenance and care
4RUNNER (U)_(OM35A83U)■
Headlight high beam/daytime running lights
Turn the bulb base counter-
clockwise.
Pull the bulb out while press-
ing the lock release of the
connector.
Replace the light bulb, and
install the bulb base.
Align the 3 tabs on the light bulb
with the mounting and insert.
Turn and secure the bulb
base.
Shake the bulb base gently to
check that it is not loose, turn
the headlights on once and visu-
ally confirm that no light is leak-
ing through the mounting.
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2
3
4
Page 402 of 530
4006-3. Do-it-yourself maintenance
4RUNNER (U)_(OM35A83U)■
Fog light (left side)
Turn the steering wheel in
the opposite direction of the
fog light that you wish to
replace.
For example, if you wish to
replace the fog light on the left
side, turn the steering wheel to
the right.
Remove the fender liner
screws.
Partly remove the fender
liner.
Unplug the connector while
depressing the lock release.
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2
3
4