2013 TOYOTA 4RUNNER engine

538 4-3. Do-it-yourself maintenance
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■After recharging/reconnecting the battery (vehicles with smart key sys-
tem)
● Unlocking the doors using the smart key system may not be possible
immediately after reconnecting the battery. If this happens, use the wire-
less remote control or the mechanical key to lock/unlock the doors.
● Start the engine with the “ENGINE START STOP” switch in ACCES-
SORY mode. The engine may not start with the “ENGINE START STOP”
switch turned OFF. However, the engine will operate normally from the
second attempt.
● The “ENGINE START STOP” switch mode is recorded by the vehicle. If
the battery is reconnected, the vehicle will return the “ENGINE START
STOP” switch mode to the status it was in before the battery was discon-
nected. Make sure to turn off the engine before disconnect the battery.
Take extra care when connecting the battery if the “ENGINE START
STOP” 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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4-3. Do-it-yourself maintenance
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Maintenance and care
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CAUTION
■
Where to safely charge the battery
Always charge the battery in an open area. Do not charge the battery in a
garage or closed room where there is insufficient ventilation.
■ How to recharge the battery
Only perform a slow charge (5 A or less). The battery may explode if
charged at a quicker rate.
■ Emergency measures regarding electrolyte
● If electrolyte gets in your eyes
Flush your eyes with clean water for at least 15 minutes and get immedi-
ate medical attention. If possible, continue to apply water with a sponge or
cloth while traveling to the nearest medical facility.
● If electrolyte gets on your skin
Wash the affected area thoroughly. If you feel pain or burning, get medical
attention immediately.
● If electrolyte gets on your clothes
It can soak through clothing on to your skin. Immediately take off the cloth-
ing and follow the procedure above if necessary.
● If you accidentally swallow electrolyte
Drink a large quantity of water or milk. Get emergency medical attention
immediately.
NOTICE
■When recharging the battery
Never recharge the battery while the engine is running. Also, be sure all
accessories are turned off.

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4-3. Do-it-yourself maintenance
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Maintenance and care
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CAUTION
■
When adding washer fluid
Do not add washer fluid when the engine is hot or running as washer fluid
contains alcohol and may catch fire if spilled on the engine etc.
NOTICE
■Do not use any fluid other than washer fluid
Do not use soapy water or engine antifreeze instead of washer fluid.
Doing so may cause streaking on the vehicle’s painted surfaces.
■ Diluting washer fluid
Dilute washer fluid with water as necessary.
Refer to the freezing temperatures listed on the label of the washer fluid bot-
tle.

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4-3. Do-it-yourself maintenance
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Maintenance and care
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Air conditioning filter
The air conditioning filter must be changed regularly to maintain air
conditioning efficiency.
■ Removal method
Turn the engine switch (vehicles without a smart key sys-
tem) or “ENGINE START STOP” switch (vehicles with a
smart key system) off.
Open the glove box and
remove the cover.
Remove the filter cover.
Remove the filter.
The “UP” marks shown on
the filter should be pointing up.
STEP 1
CTH43AS143
STEP 2
CTH43AS144
STEP 3
CTH43AS145
STEP 4

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4-3. Do-it-yourself maintenance
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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

564 4-3. Do-it-yourself maintenance
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Fuse layout and amperage ratings■ Engine compartment
FuseAmpereCircuit
1PTC HTR NO.330 A
PTC heater
2DEF30 ARear window defogger
3DEICER 20 A
Windshield wiper de-icer
4AIR PMP HTR10 AAir pump heater, AI combina-
tion valve
5PTC HTR NO.230 A
PTC heater
6SUB BATT30 ATrailer sub battery
7PTC HTR NO.150 A
PTC heater
8MIR HTR10 AOutside rear view mirror defog-
gers
9TOWING TAIL30 A
Trailer tail light
10A/C COMP10 AAir conditioning system
11STOP10 A
Stop/tail lights
12IG220 AINJ, IGN, GAUGE fuses
13HORN10 AHorn(s)
14EFI 25 AMultiport fuel injection system/
sequential multiport fuel injec-
tion system
CTH43AS146

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4-3. Do-it-yourself maintenance
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Light bulbs
You may replace the following bulbs yourself. The difficulty level of
replacement varies depending on the bulb. If necessary bulb
replacement seems difficult to perform, contact your Toyota dealer.
For more information about replacing other light bulbs, contact your
Toyota dealer.
■ Preparing for light bulb replacement
Check the wattage of the light bulb to be replaced. ( P. 648)
■ Removing the engine compartment cover
P. 527
■ Front bulb locations
CTH43AS140
Parking light
and front side
marker light
Fog light Headlight high beam Headlight low beam
Front turn signal light and
daytime running light

When trouble arises5
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5-1. Essential informationEmergency flashers ......... 582
If your vehicle needs to be towed ........................ 583
If you think something is wrong ............................. 589
Fuel pump shut off system ........................... 590
5-2. Steps to take in an emergency
If a warning light turns on or a warning buzzer
sounds ........................... 591
If you have a flat tire......... 607
If the engine will not start ................................ 620
If the shift lever cannot be shifted from P ............ 622
If you lose your keys ........ 623
If you cannot operate back door opener ........... 624
If the electronic key does not operate properly....... 625
If the vehicle battery is discharged ..................... 627
If your vehicle overheats ....................... 631
If the vehicle becomes stuck .............................. 634
If your vehicle has to be stopped in an
emergency ..................... 635