2015 TOYOTA 4RUNNER ECU

681-1. For safe use
4RUNNER (U)_(OM35B18U)
CAUTION
■When installing a child restraint system
● Vehicles with third row seats: When using the LATCH anchors for a child
restraint system, move the seat as far back as possible, with the seatback
close to the child restraint system.
● When a booster seat is installed, always ensure that the shoulder belt is
positioned across the center of the child’s shoulder. The belt should be
kept away from the child’s neck, but not so that it could fall off the child’s
shoulder. Failing to do so may result in death or serious injury in the event
of an accident or a sudden braking.
● Ensure that the belt and plate are securely locked and the seat belt is not
twisted.
● Shake the child restraint system left and right, and forward and backward
to ensure that it has been securely installed.
● After securing a child restraint system, never adjust the seat.
● Follow all installation instructions provided by the child restraint system
manufacturer.
■ Do not use a seat belt extender
If a seat belt extender is used when installing a child restraint system, the
seat belt will not securely hold the child restraint system, which could cause
death or serious injury to the child or other passengers in the event of a sud-
den braking, sudden swerving or an accident.
■ To correctly attach a child restraint system to the anchors
● When using the LATCH anchors, be sure that there are no foreign objects
around the anchors and that the seat belt is not caught behind the child
restraint system. Make sure the child restraint system is securely attached,
or it may cause death or serious injury to the child or other passengers in
the event of a sudden braking or an accident.
●When using the left side LATCH
anchors for the child restraint system,
do not sit in the center seat. Seat belt
function may be impaired, such as
being positioned overly high or loose-fit-
ting, which may result in death or seri-
ous injury in the event of sudden
braking or an accident.

691-1. For safe use
1
For safety and security
4RUNNER (U)_(OM35B18U)
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.

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4RUNNER (U)_(OM35B18U)
1-2. Theft deterrent system
Vehicles without a smart key system
The indicator light flashes after
the key has been removed from
the engine switch to indicate that
the system is operating.
The indicator light stops flashing
after the registered key has been
inserted into the engine switch to
indicate that the system has been
canceled.
Vehicles with a smart key system
The indicator light flashes after the engine switch has been turned off
to indicate that the system is operating.
The indicator light stops flashing after the engine switch has been
turned to ACCESSORY or IGNITION ON mode to indicate that the
system has been canceled.
■ System maintenance
The vehicle has a maintenance-free type engine immobilizer system.
■ Conditions that may cause the system to malfunction
●If the grip portion of the key is in contact with a metallic object
● If the key is in close proximity to or touching a key to the security system
(key with a built-in transponder chip) of another vehicle
Engine immobilizer system
The vehicle’s keys have built-in transponder chips that prevent
the engine from starting if a key has not been previously regis-
tered in the vehicle’s on-board computer.
Never leave the keys inside the vehicle when you leave the vehi-
cle.
This system is designed to help prevent vehicle theft but does
not guarantee absolute security against all vehicle thefts.

711-2. Theft deterrent system
1
For safety and security
4RUNNER (U)_(OM35B18U)■
Certifications for the engine immo bilizer system (vehicles without a
smart key system)
For vehicles sold in the U.S.A.
FCC ID:MOZRI-33BTY
This device complies with part 15 of the FCC Rules. Operation is subject to
the following two conditions: (1) This device may not cause harmful interfer-
ence, and (2) this device must accept any interference received, including
interference that may cause undesired operation.
For vehicles sold in Canada
This device complies with Industry Canada licence-exempt RSS standard(s).
Operation is subject to the following two conditions: (1) this device may not
cause interference, and (2) this device must accept any interference, includ-
ing interference that may cause undesired operation of the device.
■ Certifications for the engine immob ilizer system (vehicles with a smart
key system)
For vehicles sold in the U.S.A.
FCC ID: NI4TMIMB-1
This device complies with part 15 of the FCC Rules. Operation is subject to
the following two conditions: (1) This device may not cause harmful interfer-
ence, and (2) this device must accept any interference received, including
interference that may cause undesired operation.
For vehicles sold in Canada
This device complies with Industry Canada licence-exempt RSS standard(s).
Operation is subject to the following two conditions: (1) this device may not
cause interference, and (2) this device must accept any interference, includ-
ing interference that may cause undesired operation of the device.
CAUTION
■ Certifications for the engine immobilizer system
Changes or modifications not expressly approved by the party responsible
for compliance could void the user’s authority to operate the equipment.
NOTICE
■To ensure the system operates correctly
Do not modify or remove the system. If modified or removed, the proper
operation of the system cannot be guaranteed.

731-2. Theft deterrent system
1
For safety and security
4RUNNER (U)_(OM35B18U)
■System maintenance
The vehicle has a maintenance-free type alarm system.
■ Items to check before locking the vehicle
To prevent unexpected triggering of the alarm and vehicle theft, make sure of
the following:
●Nobody is in the vehicle.
● The windows and moon roof are closed before the alarm is set.
● No valuables or other personal items are left in the vehicle.
■ Triggering of the alarm
The alarm may be triggered in the following situations:
(Stopping the alarm deactivates the alarm system.)
■ Alarm-operated door lock
●When the alarm is operating, the doors are locked automatically to prevent
intruders.
● Do not leave the key inside the vehicle when the alarm is operating, and
make sure the key is not inside the vehicle when recharging or replacing the
battery.
●
A person inside the vehicle opens a door
or the hood.
● The battery is recharged or replaced
when the vehicle is locked.
NOTICE
■To ensure the system operates correctly
Do not modify or remove the system. If modified or removed, the proper
operation of the system cannot be guaranteed.

792. Instrument cluster
2
Instrument cluster
4RUNNER (U)_(OM35B18U)
The indicators inform the driver of the operating state of the vehicle’s
various systems.
Indicators
Turn signal indicator
( P. 202)*1, 2 Slip indicator ( P. 260)
(U.S.A.)
Headlight indicator
(P. 204)*1VSC OFF indicator
(P. 261)
(Canada)
Tail light indicator
(P. 204) *1, 4“AIR BAG ON/OFF” indi-
cator ( P. 46)
Headlight high beam
indicator ( P. 207) Cruise control set indica-
tor (
P. 221)
Front fog light indicator
( P. 210)
(if equipped)
Four-wheel drive indica-
tor ( P. 231)
*4
Security indicator
(P. 70, 72)*1
(if equipped)
Downhill assist control
system indicator
(P. 246)
*1, 3Eco Driving Indicator
Light ( P. 87)
(if equipped)
Low speed four-wheel
drive indicator
(P. 231, 235)
*1“TRAC OFF” indicator
(P. 261)
(if equipped)
Rear differential lock
indicator ( P. 243)
Cruise control indicator
( P. 221)
(if equipped)
Center differential lock
indicator ( P. 235)

973-1. Key information
3
Operation of each component
4RUNNER (U)_(OM35B18U)
Vehicles with a smart key systemLocks all the doors
Unlocks all the doors
Pressing the button unlocks the
driver's door. Pressing the but-
ton again within 3 seconds
unlocks the other doors.
Press and hold to open the win-
dows and moon roof.
*
( P. 147, 154)
*: This setting must be customized at your Toyota dealer.
◆Key
Turning the key operates the doors as follows:
Vehicles without a smart key system
Locks all the doors
Turn and hold to close the win-
dows and moon roof.
*
( P. 147, 154)
Unlocks all the doors
Driver’s side only: Turning the
key unlocks the driver’s door.
Turning the key again unlocks
the other doors.
Turn and hold to open the windows and moon roof.
* ( P. 147, 154)
*: This setting must be customized at your Toyota dealer.
Vehicles with a smart key system
The doors can also be locked and unlocked with the mechanical
key. ( P. 445)
■Operation signals
A buzzer sounds and the emergency flashers flash to indicate that the doors
have been locked/unlocked. (Locked: once; Unlocked: twice)
■ Security feature
If a door is not opened within approximately 60 seconds after the vehicle is
unlocked, the security feature automatically locks the vehicle again.
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1063-2. Opening, closing and locking the doors
4RUNNER (U)_(OM35B18U)■
Battery-saving function
The battery-saving function will be activated in order to prevent the electronic
key battery and the vehicle battery from being discharged while the vehicle is
not in operation for a long time.
●In the following situations, the smart key system may take some time to
unlock the doors.
• The electronic key has been left in an area of approximately 6 ft. (2 m) of
the outside of the vehicle for 10 minutes or longer.
• The smart key system has not been used for 5 days or longer.
● If the smart key system has not been used for 14 days or longer, the doors
cannot be unlocked at any doors except the driver’s door. In this case, take
hold of the driver’s door handle, or use the wireless remote control or the
mechanical key, to unlock the doors.
The system will resume operation when
● The vehicle is locked using the door handle lock switch when carrying the
electronic key on your person.
● The vehicle is locked/unlocked using the wireless remote control.
(P. 96)
● The vehicle is locked/unlocked using the mechanical key. ( P. 445)
■ Conditions affecting operation
The smart key system uses weak radio waves. In the following situations, the
communication between the electronic key and the vehicle may be affected,
preventing the smart key system, wireless remote control and engine immobi-
lizer system from operating properly. (Ways of coping: P. 445)
● When the electronic key battery is depleted
● Near a TV tower, electric power plant, gas station, radio station, large dis-
play, airport or other facility that generates strong radio waves or electrical
noise
● When carrying a portable radio, cellular phone, cordless phone or other
wireless communication device
Interior alarm sounds
once.
The engine switch was
pressed after the doors
were unlocked with the
mechanical key.
Touch the electronic
key to the engine
switch while depressing
the brake pedal.
The engine switch was
pressed two consecu-
tive times without the
electronic key being
present.
AlarmSituationCorrection procedure