2013 TOYOTA 4RUNNER maintenance

556 4-3. Do-it-yourself maintenance
4RUNNER_U
■Checking interval
Replace the air conditioning filter according to the maintenance schedule. In
dusty areas or areas with heavy traffic flow, early replacement may be
required. (For scheduled maintenance information, please refer to the
“Scheduled Maintenance Guide” or “Owner’s Manual Supplement”.)
■ If air flow from the vents decreases dramatically
The filter may be clogged. Check the filter and replace if necessary.
NOTICE
■When using the air conditioning system
Make sure that a filter is always installed.
Using the air conditioning system without a filter may cause damage to the
system.

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Maintenance and care
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Wireless remote control/electronic key batter y
Replace the battery with a new one if it is depleted.
■You will need the following items:
●Flathead screwdriver
● Lithium battery CR2016 (vehicles without a smart key sys-
tem), or CR1632 (vehicles with a smart key system)
■ Replacing the battery (vehicles without 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.
STEP 1
STEP 2
STEP 3

558 4-3. Do-it-yourself maintenance
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■Replacing the battery (vehicles with a smart key system)
Take out the mechanical key.
Remove the cover.
To prevent damage to the key,
cover the tip of the screwdriver
with a rag.
Remove the depleted battery.
Insert a new battery with the
“+” terminal facing up.
STEP 1
STEP 2
STEP 3

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Maintenance and care
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■
Use a CR2016 (vehicles without a smart key system) or CR1632 (vehi-
cles with a smart key system) lithium battery
● Batteries can be purchased at your Toyota dealer, local electrical appli-
ance shops or camera stores.
● Replace only with the same or equivalent type recommended by the
manufacturer.
● Dispose of used batteries according to local laws.
■ If the key battery is depleted
The following symptoms may occur:
● The smart key system and wireless remote control will not function prop-
erly.
● The operational range will be reduced.
CAUTION
■Removed battery and other parts
Keep away from children. These parts are small and if swallowed by a child,
they can cause choking. 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.

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Checking and replacing fuses
If any of the electrical components do not operate, a fuse may have
blown. If this happens, check and replace the fuses as necessary.
Vehicles without a smart key system
Turn the engine switch off.
Vehicles with a smart key system
Turn the “ENGINE START STOP” switch off.
Open the fuse box cover.
Engine compartment
Push the tab in and lift the lid
off.
Driver’s side instrument panel Remove the lid.STEP 1
STEP 2
CTH43AS123
CTH43AS028

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Maintenance and care
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After a system failure, see “Fuse layout and amperage rat-
ings” (
P. 564) for details about which fuse to check.
Remove the fuse.
Only type A fuse can be
removed using the pull-out
tool.
Check if the fuse is blown.
Ty p e A
Normal fuse
Blown fuse
Replace the blown fuse with a
new fuse of an appropriate
amperage rating. The amper-
age rating can be found on the
fuse box lid.
Ty p e BNormal fuse
Blown fuse
Replace the blown fuse with a
new fuse of an appropriate
amperage rating. The amper-
age rating can be found on the
fuse box lid.
STEP 3
STEP 4
CTH43AS029
STEP 5
CTH43AS030
CTH43AS031

562 4-3. Do-it-yourself maintenance
4RUNNER_U
Ty p e CNormal fuse
Blown fuse
Replace the blown fuse with a
new fuse of an appropriate
amperage rating. The amper-
age rating can be found on the
fuse box lid.
Ty p e DNormal fuse
Blown fuse
Replace the blown fuse with a
new fuse of an appropriate
amperage rating. The amper-
age rating can be found on the
fuse box lid.
Ty p e ENormal fuse
Blown fuse
Replace the blown fuse with a
new fuse of an appropriate
amperage rating. The amper-
age rating can be found on the
fuse box lid.
CTH43AS073
CTH43AS074
CTH43AS075

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Ty p e F
Normal fuse
Blown fuse
Contact your Toyota dealer.
CTH43AS076