2016 TOYOTA 4RUNNER check engine light

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4RUNNER (U)_(OM35B23U)6-1. Maintenance and care
Cleaning and protecting
the vehicle exterior .......... 334
Cleaning and protecting
the vehicle interior ........... 337
6-2. Maintenance
Maintenance
requirements ................... 340
General maintenance ........ 342
Emission inspection
and maintenance (I/M)
programs ......................... 345
6-3. Do-it-yourself
maintenance
Do-it-yourself service
precautions ..................... 346
Hood.................................. 349
Engine compartment ......... 350
Tires .................................. 365
Tire inflation pressure........ 371
Wheels .............................. 374
Air conditioning filter .......... 377
Wireless remote
control/electronic
key battery ...................... 379
Checking and replacing
fuses ............................... 382
Light bulbs ......................... 3857-1. Essential information
Emergency flashers ........... 402
If your vehicle has to
be stopped in an
emergency....................... 403
7-2. Steps to take in an
emergency
If your vehicle needs to
be towed .......................... 405
If you think something
is wrong ........................... 411
Fuel pump shut off
system ............................. 412
If a warning light turns
on or a warning buzzer
sounds ............................. 413
If a warning message or
indicator is displayed ....... 422
If you have a flat tire .......... 429
If the engine will not
start ................................. 442
If the shift lever cannot
be shifted from P ............. 444
If you cannot operate
back door opener ............ 445
If the electronic key does
not operate properly ........ 446
If the vehicle battery is
discharged ....................... 448
If your vehicle overheats.... 452
If the vehicle becomes
stuck ................................ 455
6Maintenance and care7When trouble arises

15Pictorial index
4RUNNER (U)_(OM35B23U)
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 365
Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . P. 468
Winter tires/tire chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 268
Checking/rotation/tire pressure warning system . . . . . . . . . P. 365
Coping with flat tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 429
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 349
Opening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 349
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 461
Coping with overheat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 452
Headlights/daytime running lights . . . . . . . . . . . . . . . . . . . . P. 204
Front side marker lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 204
Front turn signal/parking lights . . . . . . . . . . . . . . . . . . . . . . P. 204
Fog lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 210
Turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 202
Stop/tail lights/rear side marker lights . . . . . . . . . . . . . . . . . P. 204
License plate lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 204
Back-up lights
Shifting the shift lever to R . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 199
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Light bulbs of the exterior lights for driving
(Replacing method: P. 385, Wattages: P. 469)
*: Vehicles with a smart key system
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691-1. For safe use
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For safety and security
4RUNNER (U)_(OM35B23U)
Exhaust gas precautions
Harmful substance to the human body is included in exhaust
gases if inhale.
CAUTION
Exhaust gases include harmful carbon monoxide (CO), which is colorless and
odorless. Observe the following precautions.
Failure to do so may cause exhaust gases enter the vehicle and may lead to
an accident caused by light-headedness, or may lead to death or a serious
health hazard.
■Important points while driving
●Keep the back door closed.
●If you smell exhaust gases in the vehicle even when the back door is
closed, open the windows and have the vehicle inspected at your Toyota
dealer as soon as possible.
■When parking
●If the vehicle is in a poorly ventilated area or a closed area, such as a
garage, stop the engine.
●Do not leave the vehicle with the engine on for a long time.
If such a situation cannot be avoided, park the vehicle in an open space
and ensure that exhaust fumes do not enter the vehicle interior.
●Do not leave the engine running in an area with snow build-up, or where it
is snowing. If snowbanks build up around the vehicle while the engine is
running, exhaust gases may collect and enter the vehicle.
■Exhaust pipe
The exhaust system needs to be checked periodically. If there is a hole or
crack caused by corrosion, damage to a joint or abnormal exhaust noise, be
sure to have the vehicle inspected and repaired by your Toyota dealer.

782. Instrument cluster
4RUNNER (U)_(OM35B23U)
*1: These lights turn on when the engine switch is turned to IGNITION ON
mode (vehicles with a smart key system) or the engine switch is turned to
the “ON” position (vehicles without a smart key system) to indicate that a
system check is being performed. They will turn off after the engine is
started, or after a few seconds. There may be a malfunction in a system if
the lights do not come on, or do not turn off. Have the vehicle inspected by
your Toyota dealer.
*2: The light flashes to indicate a malfunction.
*3: The light flashes rapidly to indicate a malfunction.
*4: The light flashes continuously to indicate a malfunction.
Open door warning light
(P. 415)*1Master warning light
(P. 422)
Low fuel level warning
light (P. 415)*1Tire pressure warning
light (P. 416)
Seat belt reminder light
(P. 416)
(if equipped)
Unengaged “Park” warn-
ing light (P. 415)
*1
Low engine oil pressure
warning light (P. 413)*1
(if equipped)
KDSS warning light
(P. 415)
*1
Power steering warning
light (P. 415)*1, 2
(if equipped)
Automatic running
boards indicator light
(P. 415)

802. Instrument cluster
4RUNNER (U)_(OM35B23U)
*1: These lights turn on when the engine switch is turned to the “ON” position
(vehicles without a smart key system) or the engine switch is turned to
IGNITION ON mode (vehicles with a smart key system) to indicate that a
system check is being performed. They will turn off after the engine is
started, or after a few seconds. There may be a malfunction in a system if
the lights do not come on, or do not turn off. Have the vehicle inspected by
your Toyota dealer.
*2: The light flashes to indicate that the system is operating.
*3: The light does not turn on when the system is disabled.
*4: This light illuminates on the center panel.
(if equipped)
“A-TRAC” indicator
(P. 239)*1
(if equipped)
Crawl Control indicator
(P. 249)
*1
(if equipped)
“AUTO LSD” indicator
(P. 241)*1, 2
(if equipped)
Automatic running
boards indicator
(P. 111 )
(if equipped)
Multi-terrain Select indi-
cator (P. 252)
CAUTION
■If a safety system warning light does not come on
Should a safety system light such as the ABS and SRS warning light not
come on when you start the engine, this could mean that these systems are
not available to help protect you in an accident, which could result in death
or serious injury. Have the vehicle inspected by your Toyota dealer immedi-
ately if this occurs.

822. Instrument cluster
4RUNNER (U)_(OM35B23U)
The brightness of the instrument panel lights can be adjusted.
Brighter
Darker
■The meters and display illuminate when
Vehicles without a smart key system
The engine switch is in the “ON” position.
Vehicles with a smart key system
The engine switch is in IGNITION ON mode.
■The brightness of the instrument panel lights
When the headlight switch is turned to on, the brightness will be reduced
slightly unless the control dial is turned fully upward.
Instrument panel light control
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NOTICE
■To prevent damage to the engine and its components
●Do not let the indicator needle of the tachometer enter the red zone, which
indicates the maximum engine speed.
●The engine may be overheating if the engine coolant temperature gauge is
in the red zone (H). In this case, immediately stop the vehicle in a safe
place, and check the engine after it has cooled completely. (P. 452)

1083-2. Opening, closing and locking the doors
4RUNNER (U)_(OM35B23U)■Note for locking the doors
●Touching the door lock sensor while wearing gloves may delay or prevent
lock operation. Remove the gloves and touch the lock sensor again.
●When the lock operation is performed using the lock sensor, recognition sig-
nals will be shown up to two consecutive times. After this, no recognition
signals will be given.
●If the door handle becomes wet while the electronic key is within the effec-
tive range, the door may lock and unlock repeatedly. Place the electronic
key in a location 6 ft. (2 m) or more away from the vehicle while the vehicle
is being washed. (Take care to ensure that the key is not stolen.)
●If the electronic key is inside the vehicle and a door handle becomes wet
during a car wash, a buzzer will sound outside the vehicle. To turn off the
alarm, lock all the doors.
●The lock sensor may not work properly if it comes into contact with ice,
snow, mud, etc. Clean the lock sensor and attempt to operate it again, or
use the lock sensor on the lower part of the door handle.
●Fingernails may scrape against the door during operation of the door han-
dle. Be careful not to injure fingernails or damage the surface of the door.
■Note for the unlocking function
●Gripping the door handle when wearing a glove may not unlock the door.
●A sudden approach to the effective range or door handle may prevent the
doors from being unlocked. In this case, return the door handle to the origi-
nal position and check that the doors unlock before pulling the door handle
again.
●If there is another electronic key in the detection area, it may take slightly
longer to unlock the doors after the door handle is gripped.
■When the vehicle is not driven for extended periods
To prevent theft of the vehicle, do not leave the electronic key within 6 ft. (2 m)
of the vehicle.
■To operate the system properly
●Make sure to carry the electronic key when operating the system. Do not get
the electronic key too close to the vehicle when operating the system from
the outside of the vehicle.
●Depending on the position and holding condition of the electronic key, the
key may not be detected correctly and the system may not operate properly.
(The alarm may go off accidentally, or the door lock prevention function may
not operate.)
■If the smart key system does not operate properly
●Locking and unlocking the doors: Use the mechanical key. (P. 446)
●Starting the engine: P. 447
■Customization
Settings (e. g. operation signal) can be changed.
(Customizable features: P. 485)

1333-3. Adjusting the seats
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Operation of each component
4RUNNER (U)_(OM35B23U)
■To stop the position recall operation part-way through
Perform any of the following:
●Press the “SET” button.
●Press button “1” or “2”.
●Operate any of the seat adjustment switches (only cancels seat position
recall).
■Seat positions that can be memorized (P. 119)
All adjusted positions can be recorded.
■Operating the driving position memory after turning the engine switch
off
Recorded seat positions can be activated up to 180 seconds after the driver’s
door is opened and another 60 seconds after it is closed again.
■In order to correctly use the driving position memory function
If a seat position is already in the furthest possible position and the seat is
operated in the same direction, the recorded position may be slightly different
when it is recalled.
Each electronic key can be registered to recall your preferred driving
position.
■Registering procedure
Record your driving position to button “1” or “2” before performing
the following:
Carry only the key you want to register, and then close the driver’s
door.
If 2 or more keys are in the vehicle, the driving position cannot be
recorded properly.
Check that the shift lever is in P.
Turn the engine switch to IGNITION ON mode.
Recall the driving position that you want to record.
Memory recall function
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