2021 TOYOTA 4RUNNER warning light

1824-1. Before driving
4RUNNER (U)
WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury.
■When the vehicle is parked
● Do not leave glasses, cigarette lighters, spray cans, or soft d rink cans in
the vehicle when it is in the sun.
Doing so may result in the following:
• Gas may leak from a cigarette lighter or spray can, and may le ad to a
fire.
• The temperature inside the vehicle may cause the plastic lenses and plastic material of glasses to deform or crack.
• Soft drink cans may fracture, causing the contents to spray ov er the
interior of the vehicle, and may also cause a short circuit in the vehicle’s
electrical components.
● Do not leave cigarette lighters in the vehicle. If a cigarette lighter is in a
place such as the glove box or on the floor, it may be lit acci dentally when
luggage is loaded or the seat is adjusted, causing a fire.
● Do not attach adhesive discs to the windshield or windows. Do n ot place
containers such as air fresheners on the instrument panel or da shboard.
Adhesive discs or containers may act as lenses, causing a fire in the vehi-
cle.
● Do not leave a door or window open if the curved glass is coate d with a
metallized film such as a silver-colored one. Reflected sunligh t may cause
the glass to act as a lens, causing a fire.
● Always apply the parking brake, shift the shift lever to P, stop the engine
and lock the vehicle.
Do not leave the vehicle unattended while the engine is running .
If the vehicle is parked with the shift lever in P but the park ing brake is not
set, the vehicle may start to move, possibly leading to an acci dent.
● Do not touch the exhaust pipes while the engine is running or i mmediately
after turning the engine off.
Doing so may cause burns.

2164-2. Driving procedures
4RUNNER (U)
WARNING
■When starting the engine
Always start the engine while sitting in the driver’s seat. Do not depress the
accelerator pedal while starting the engine under any circumsta nces.
Doing so may cause an accident resulting in death or serious in jury.
■ Caution while driving
If engine failure occurs while the vehicle is moving, do not lo ck or open the
doors until the vehicle reaches a safe and complete stop. Activ ation of the
steering lock in this circumstance may lead to an accident, res ulting in
death or serious injury.
■ Stopping the engine in an emergency
● If you want to stop the engine in an emergency while driving th e vehicle,
press and hold the engine switch for more than 2 seconds, or press it
briefly 3 times or more in succession. ( P. 463)
However, do not touch the engine switch while driving except in an emer-
gency. Turning the engine off while driving will not cause loss of steering or
braking control, but the power assist to these systems will be lost. This will
make it more difficult to steer and brake, so you should pull o ver and stop
the vehicle as soon as it is safe to do so.
● If the engine switch is operated while the vehicle is running, a warning
message will be shown on the multi-information display and a bu zzer
sounds.
■ When parking
Exhaust gases include harmful carbon monoxide (CO), which is colorless
and odorless. Observe the following precautions.
Failure to do so may cause exhaust gases to enter the vehicle a nd may
lead to an accident caused by light-headedness, or may lead to death or a
serious health hazard.
● 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 running for a long tim e. 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.

2304-3. Operating the lights and wipers
4RUNNER (U)
Push the lever away from you
with the headlight switch in the or position.
Press the Automatic High
Beam switch.
The Automatic High Beam indica-
tor will come on when the system
is operating.
Automatic High Beam
The Automatic High Beam uses a camera sensor located behind
the upper portion of the windshi eld to assess the brightness of
the lights of vehicles ahead, streetlights, etc., and automatic ally
turns the high beams on or off as necessary.
WARNING
■Limitations of the Automatic High Beam
Do not overly rely on the Automatic High Beam. Always drive saf ely, taking
care to observe your surroundings and turning the high beams on or off
manually if necessary.
■ To prevent incorrect operation o f the Automatic High Beam syste m
Do not overload the vehicle.
Activating the Automatic High Beam
1
2

2384-3. Operating the lights and wipers
4RUNNER (U)
■The windshield wiper and washer can be operated 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.
■ If no windshield washer fluid sprays
Check that the washer nozzles are not blocked if there is washe r fluid in the
washer fluid reservoir.
WARNING
■ Caution regarding the use of washer fluid
When it is cold, do not use the washer fluid until the windshie ld becomes
warm. The fluid may freeze on the windshield and cause low visi bility. This
may lead to an accident, resulting in death or serious injury.
NOTICE
■ When the windshield is dry
Do not use the wipers, as they may damage the windshield.
■ When the washer fluid tank is empty
Do not operate the switch continually as the washer fluid pump may over-
heat.
■ When a nozzle becomes blocked
In this case, contact your Toyota dealer.
Do not try to clear it with a pin or other object. The nozzle w ill be damaged.

2444-4. Refueling
4RUNNER (U)
Open the fuel filler door.
Turn the fuel tank cap slowly to
open. Hang the fuel tank cap on
the back o f the fuel filler door.
After refueling, turn the fuel tank
cap until you hear a click. Once
the cap is released, it will turn
slightly in the opposite direction.
Opening the fuel tank cap
1
2
Closing the fuel tank cap
WARNING
■ When replacing the fuel tank cap
Do not use anything but a genuine Toyota fuel tank cap designed for your
vehicle. Doing so may cause a fire or other incident which may result in
death or serious injury.

2484-5. Using the driving support systems
4RUNNER (U)
WARNING
■To avoid malfunction of the front camera
Observe the following precautions.
Otherwise, the front camera may not operate properly, possibly leading to
an accident resulting in death or serious injury.
● Keep the windshield clean at all times.
• If the windshield is dirty or covered with an oily film, water droplets,
snow, etc., clean the windshield.
• If a glass coating agent is applied to the windshield, it will still be neces-
sary to use the windshield wipers to remove water droplets, etc . from
the area of the windshield in front of the front camera.
• If the inner side of the windshield where the front camera is installed is
dirty, contact your Toyota dealer.
● If the part of the windshield in front of the front camera is f ogged up or cov-
ered with condensation or ice, use the windshield defogger to remove the
fog, condensation or ice. ( P. 342)
● If water droplets cannot be properly removed from the area of t he wind-
shield in front of the front camera by the windshield wipers, replace the
wiper insert or wiper blade.
● Do not attach window tint to the windshield.
● Replace the windshield if it is damaged or cracked.
After replacing the windshield, the front camera must be recali brated. Con-
tact your Toyota dealer for details.
● Do not allow liquids to contact the front camera.
● Do not allow bright lights to shine into the front camera.
●Do not attach objects, such as stickers,
transparent stickers, etc., to the outer
side of the windshield in front of the
front camera (shaded area in the illus-
tration).
A: From the top of the windshield to
approximately 0.4 in. (1 cm) below the
bottom of the front camera
B: Approximately 7.9 in. (20 cm)
(Approximately 4.0 in. [10 cm] to the
right and left from the center of the
front camera)

2494-5. Using the driving support systems
4
Driving
4RUNNER (U)
WARNING
●Do not dirty or damage the front camera.
When cleaning the inside of the windshield, do not allow glass cleaner to
contact the lens of the front camera. Also, do not touch the le ns.
If the lens is dirty or damaged, contact your Toyota dealer.
● Do not subject the front camera to a strong impact.
● Do not change the installation position or direction of the fro nt camera or
remove it.
● Do not disassemble the front camera.
● Do not modify any components of the vehicle around the front ca mera
(inside rear view mirror, etc.) or ceiling.
● Do not attach any accessories to the hood, front grille or fron t bumper that
may obstruct the front camera. Contact your Toyota dealer for d etails.
● If a surfboard or other long object is to be mounted on the roo f, make sure
that it will not obstruct the front camera.
● Do not modify the headlights or other lights.

2574-5. Using the driving support systems
4
Driving
4RUNNER (U)■
Enabling/disabling th
e pre-collision system
The pre-collision sy stem can be enabled/disabled on ( P. 9 6 )
of the multi-information display.
The system is automatically enabled each time the engine switch is
turned to the “ON” position (vehicles without a smart key syste m) or the
engine switch is turned to IGNITION ON mode (vehicles with a sm art
key system).
If the system is disabled, the
PCS warning light will turn on
and a message will be dis-
played on the multi-information
display.
■Changing the pre-colli sion warning timing
The pre-collision warning timing can be changed on ( P. 96) of
the multi-inform ation display.
The operation timing setting is retained when the engine switch is
turned off.
Far
The warning will begin to oper-
ate earlier than with the default
timing.
Middle
This is the default setting.
Near
The warning will begin to oper-
ate later than with the default
timing.
Changing settings of the pre-collision system
1
2
3