2017 TOYOTA 4RUNNER Owners Manual

4177-2. Steps to take in an emergency
7
When trouble arises
4RUNNER (U)_(OM35B37U)
If a warning light turns on or a warning
buzzer sounds
Calmly perform the following actions if any of the warning lights
comes on or flashes. If a light comes on or flashes, but then
goes off, this does not necessarily indicate a malfunction in the
system. However, if this continues to occur, have the vehicle
inspected by your Toyota dealer.
Warning light and warning buzzer list
Warning lightWarning light/Details/Actions
(U.S.A.)
(Canada)
Brake system warning light (warning buzzer)*1
• Low brake fluid
• Malfunction in the brake system
This light also comes on when the parking brake is not
released. If the light turns off after the parking brake is
fully released the system is operating normally.
→ Immediately stop the vehicle in a safe place and
contact your Toyota dealer. Continuing to drive
the vehicle may be dangerous.
Charging system warning light
Indicates a malfunction in the vehicle’s charging sys-
tem
→ Immediately stop the vehicle in a safe place and
contact your Toyota dealer.
Low engine oil pressure warning light
Indicates that the engine oil pressure is too low
→ Immediately stop the vehicle in a safe place and
contact your Toyota dealer.
(U.S.A.)
(Canada)
Malfunction indicator lamp Indicates a malfunction in:
• The emission control system;
• The electronic engine control system;
• The electronic throttle control system; or
• The electronic automatic transmission control sys-tem
→ Have the vehicle inspected by your Toyota dealer
immediately.

4187-2. Steps to take in an emergency
4RUNNER (U)_(OM35B37U)
SRS warning lightIndicates a malfunction in:
• The SRS airbag system;
• The front passenger occupant classification system;or
• The seat belt pretensioner system
→ Have the vehicle inspected by your Toyota dealer
immediately.
(U.S.A.)
(Canada) ABS warning light
Indicates a malfunction in:
• The ABS; or
• The brake assist system
→ Have the vehicle inspected by your Toyota dealer
immediately.
(Flashes)
Cruise control indicator light
Indicates a malfunction in the cruise control system
→ Have the vehicle inspected by your Toyota dealer
immediately.
Slip indicator Indicates a malfunction in:
• The VSC system;
• Trailer Sway Control system;
• The TRAC system;
• The active traction control system;
• The AUTO LSD system;
• The downhill assist control system;
• The hill-start assist control system; or
• The Crawl Control system
→ Have the vehicle inspected by your Toyota dealer
immediately.
(Flashes rapidly)
Rear differential lock indicator light (if equipped) Indicates a malfunction in the rear differential lock sys-
tem
→ Have the vehicle inspected by your Toyota dealer
immediately.
(Flashes rapidly)
Four-wheel drive indicat or light (if equipped)
Indicates a malfunction in the four-wheel drive system
→ Have the vehicle inspected by your Toyota dealer
immediately.
Warning lightWarning light/Details/Actions

4197-2. Steps to take in an emergency
7
When trouble arises
4RUNNER (U)_(OM35B37U)
(Flashes rapidly)
Low speed four-wheel drive indicator light (if
equipped) Indicates a malfunction in the four-wheel drive system
→ Have the vehicle inspected by your Toyota dealer
immediately.
(Flashes rapidly)
Center differential lock indicator light (if equipped) Indicates a malfunction in the four-wheel drive system
→ Have the vehicle inspected by your Toyota dealer
immediately.
(Flashes contin- uously)
Multi-terrain Select indi cator light (if equipped)
Indicates a malfunction in the Multi-terrain Select sys-
tem
→ Have the vehicle inspected by your Toyota dealer
immediately.
Power steering warning light Indicates a malfunction in the power steering system
→ Have the vehicle inspected by your Toyota dealer
immediately.
Unengaged “Park” warning light (if equipped) Indicates a malfunction in the transmission “Park”
mechanism.
→ Have the vehicle inspected by your Toyota dealer
immediately.
KDSS warning light (if equipped) Indicates a malfunction in KDSS
→ Have the vehicle inspected by your Toyota dealer
immediately.
(Flashes)
Automatic running boards indicator light (if
equipped)
Indicates a malfunction in Automatic running boards
→ Have the vehicle inspected by your Toyota dealer
immediately.
Open door warning light (warning buzzer)*2
Indicates that a door is not fully closed
→ Check that all the doors are closed.
Low fuel level warning light
Indicates remaining fuel is approximately 3.5 gal. (13.1
L, 2.9 Imp. gal.) or less
→ Refuel the vehicle.
Warning lightWarning light/Details/Actions

4207-2. Steps to take in an emergency
4RUNNER (U)_(OM35B37U)
Seat belt reminder light (warning buzzer)*3
Warns the driver and/or front passenger to fasten their
seat belts
→ Fasten the seat belt.
If the front passenger’s seat is occupied, the front
passenger’s seat belt also needs to be fastened to
make the warning light (warning buzzer) turn off.
Smart key system indicator light
Indicates malfunction in the smart key system.
→ P. 426
Master warning light
A buzzer sounds and warning light comes on flashes
to indicate that the master warning system has
detected a malfunction.
→ P. 426
Tire pressure warning light
When the light comes on:
Low tire inflation pressure such as
• Natural causes (→ P. 422)
• Flat tire ( →P. 433)
→ Adjust the tire inflation pressure (including the
spare tire) to the specified level.
The light will turn off after a few minutes. In
case the light does not turn off even if the tire
inflation pressure is adjusted, have the system
checked by your Toyota dealer.
When the light comes on after blinking for 1 minute:
Malfunction in the tire pressure warning system
( → P. 423)
→ Have the system checked by your Toyota
dealer.
Warning lightWarning light/Details/Actions

4217-2. Steps to take in an emergency
7
When trouble arises
4RUNNER (U)_(OM35B37U)
*1: Parking brake engaged warning buzzer:A buzzer will sound if the vehicle is driven at a speed of approximately \
3
mph (5 km/h) or more.
*2: Open door warning buzzer:The open door warning buzzer sounds to alert one or more of the doors is
not fully closed (with the vehicle having reached a speed of 3 mph [5 km/h]).
*3: Driver’s and front passenger’s seat belt buzzer:The driver’s and front passenger’s seat belt buzzer sounds to alert the
driver and front passenger that
his or her seat belt is not fastened. The
buzzer sounds intermittently for 10 seconds after the vehicle reaches a
speed of 12 mph (20 km/h). Then, if the seat belt is still unfastened, the
buzzer will sound in a different tone for 20 more seconds.
■ SRS warning light
This warning light system monitors the airbag sensor assembly, front impact
sensors, side impact sensors (front door), side impact sensors (rear), safing
sensor (rear), driver's seat belt buckle switch, front passenger occupant clas-
sification system (ECU and sensors) , “AIR BAG ON” and “AIR BAG OFF”
indicator lights, front passenger's seat belt buckle switch, seat belt p\
reten-
sioners, airbags, interconnecting wiring and power sources. (→P. 3 5 )
■ Key reminder buzzer (vehicles without a smart key system)
The buzzer indicates that the key has not been removed with the engine off
and the driver’s door opened.
■ Open moon roof reminder buzzer (if equipped)
The buzzer indicates that the moon roof is not fully closed with the engine off
and the driver’s door opened.
■ Front passenger detection sensor, passenger seat belt reminder and
warning buzzer
● If luggage is placed on the front passenger seat, the front passenger de\
tec-
tion sensor may cause the warning light to flash and the warning buzzer to
sound even if a passenger is not sitting in the seat.
● If a cushion is placed on the seat, the sensor may not detect a passenger,
and the warning light may not operate properly.
■ If the malfunction indicator la mp comes on while driving
First check the following:
● Is the fuel tank empty?
If it is, fill the fuel tank immediately.
● Is the fuel tank cap loose?
If it is, tighten it securely.
The light will go off after several driving trips.
If the light does not go off even after several trips, contact your Toyota dealer
as soon as possible.

4227-2. Steps to take in an emergency
4RUNNER (U)_(OM35B37U)■
The tire pressure warning light may come on due to natural causes
The tire pressure warning light may come on due to natural causes such
as natural air leaks and tire inflat
ion pressure changes caused by tem-
perature. In this case, adjusting the ti re inflation pressure will turn off the
warning light (afte r a few minutes).
■When a tire is replaced with a spare tire
Vehicles without P245/60R20 tires
The spare tire is not equipped with a tire pressure warning valve and
transmitter. If a tire goes flat, the tire pressure warning light will not turn off
even though the flat tire has been re placed with the spare tire. Replace
the spare tire with the repaired tire and adjust the tire inflation pressure.
The tire pressure warning light will go off after a few minutes.
Vehicles with P245/60R20 tires
The spare tire is also equipped with a tire pressure warning valve and
transmitter. The tire pres sure warning light will turn on if the tire inflation
pressure of the spare tire is low. If a tire goes flat, the tire pressure warn-
ing light will not turn off even though th e flat tire has been replaced with
the spare tire. Replace the spare tire with the repaired tire and adjust the
tire inflation pres sure. The tire pressure warn ing light will go off after a few
minutes.

4237-2. Steps to take in an emergency
7
When trouble arises
4RUNNER (U)_(OM35B37U)■
If the tire pressure warning system is not functioning
The tire pressure warning system will be disabled in the following condi-
tions:
(When the condition be
comes normal, the system will work properly.)
●If tires not equipped with tire pressure warning valves and transmitters
are used
●If the ID code on the tire pressure warning valves and transmitters is not
registered in the tire pressure warning computer
●If the tire inflation pressure is 73 psi (500 kPa, 5.1 kgf/cm2 or bar) or
higher
The tire pressure warning system may be disabled in the following condi-
tions:
(When the condition be comes normal, the system will work properly.)
●If electronic devices or facilities using similar radio wave frequencies are
nearby
●If a radio set at a similar frequency is in use in the vehicle
●If a window tint that affects the radio wave signals is installed
●If there is a lot of snow or ice on the vehicle, particularly around the
wheels or wheel housings
●If non-genuine Toyota wheels are us ed (Even if you use Toyota wheels,
the tire pressure warning system may not work properly with some types
of tires.)
●If tire chains are used
●Vehicles with P245/60R20 tires: If the spare tire is in a location subject
to poor radio wave signal reception
●Vehicles with P245/60R20 tires: If a large metallic object which can
interfere with signal reception is put in the luggage compartment
■If the tire pressure warning light frequently comes on after blinking
for 1 minute
If the tire pressure warning light frequently comes on after blinking for 1
minute when the engine switch is turned on, have it checked by your
Toyota dealer.
■ Customization that can be co nfigured at Toyota dealer
The vehicle speed linked seat belt reminder buzzer can be disabled.
(Customizable features →P. 489) However, Toyota recommends that the seat
belt reminder buzzer be operational to alert the driver and front passenger
when seat belts are not fastened.

4247-2. Steps to take in an emergency
4RUNNER (U)_(OM35B37U)
CAUTION
■If the tire pressure warning light comes on
Be sure to observe the following precautions. Failure to do so could
cause a loss of vehicle control and result in death or serious injury.
●Stop your vehicle in a safe place as soon as possible. Adjust the tire
inflation pressure immediately.
●If the tire pressure warning light comes on even after tire inflation pres-
sure adjustment, it is probable that you have a flat tire. Check the tires.
If a tire is flat, change it with the spare tire and have the flat tire
repaired by the nearest Toyota dealer.
●Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate,
you could lose control of the steering wheel or the brakes.
■If a blowout or sudden air leakage should occur
The tire pressure warning system may not activate immediately.
■Maintenance of the tires
Each tire, including the spare (if provided), should be checked monthly
when cold and inflated to the inflation pressure recommended by the
vehicle manufacturer on the vehicle placard or tire inflation pressure
label (tire and load information label) . (If your vehicle has tires of a dif-
ferent size than the size indicated on the vehicle placard or tire inflation
pressure label [tire and load information label], you should determine
the proper tire inflation pressure for those tires.)
As an added safety feature, your vehicle has been equipped with a tire
pressure monitoring system (TPMS-ti re pressure warning system) that
illuminates a low tire pre ssure telltale (tire pressure warning light) when
one or more of your tires is significantly under-inflated. Accordingly,
when the low tire pressure telltale (tire pressure warning light) illumi-
nates, you should stop and check your tires as soon as possible, and
inflate them to the proper pressure. Driving on a significantly under-
inflated tire causes the tire to overheat and can lead to tire failure.
Under-inflation also reduces fuel effi ciency and tire tread life, and may
affect the vehicle’s hand ling and stopping ability.
Please note that the TPMS (tire pressure warning system) is not a sub-
stitute for proper ti re maintenance, and it is the driver’s responsibility to
maintain correct tire pressure, even if under-inflation has not reached
the level to trigger illumination of the TPMS low tire pressure telltale (tire
pressure warning light).