2023 TOYOTA 4RUNNER warning

4526-3. Do-it-yourself maintenance
4RUNNER (U)
■After a fuse is replaced
●If the lights do not turn on even after the fuse has been repla ced, a bulb may
need replacement. ( P. 453)
● If the replaced fuse blows again, have the vehicle inspected by your Toyota
dealer.
■ If there is an overload in a circuit
The fuses are designed to blow, protecting the wiring harness f rom damage.
WARNING
■ To prevent system breakdowns and vehicle fire
Observe the following precautions.
Failure to do so may cause damage to the vehicle, and possibly a fire or
injury.
● Never use a fuse of a higher amperage rating than that indicated, or use
any other object in place of a fuse.
● Always use a genuine Toyota fuse or equivalent.
Never replace a fuse with a wire, even as a temporary fix.
● Do not modify the fuses or fuse boxes.
NOTICE
■Before replacing fuses
Have the cause of electrical overload determined and repaired b y your
Toyota dealer as soon as possible.

4636-3. Do-it-yourself maintenance
6
Maintenance and care
4RUNNER (U)■
Replacing the following bulbs
If any of the lights listed below has burnt out, have it replaced by
your Toyota dealer.
●
Headlight low beams (if equipped)
● Headlight low/high beams (if equipped)
● Fog lights
● Side turn signal lights
● Stop/tail lights
● Rear side marker lights
● High mounted stoplight
● Outer foot lights (if equipped)
■LED light bulbs
The headlight low beams (if equipped), headlight low/high beams (if
equipped), fog lights, side turn signal lights, stop/tail lights, rear side marker
lights, high mounted stoplight and outer foot lights consist of a number of
LEDs. If any LEDs burn out, take your vehicle to your Toyota dealer to have
the light replaced.
■ Condensation build-up on the inside of the lens
Temporary condensation build-up on the inside of the lens does not indicate a
malfunction. Contact your Toyota dealer for more information in the following
situations:
● Large drops of water have built up on the inside of the lens.
● Water has built up inside the lens.
WARNING
■Replacing light bulbs
● Turn off the lights. Do not attempt to replace the bulb immediately after
turning off the lights.
The bulbs become very hot and may cause burns.
● Do not touch the glass portion of the light bulb with bare hand s. When it is
unavoidable to hold the glass portion, use and hold with a clea n dry cloth
to avoid getting moisture and oils on the bulb.
Also, if the bulb is scratched or dropped, it may blow out or crack.
● Fully install light bulbs and any parts used to secure them. Failure to do so
may result in heat damage, fire, or water entering the headligh t unit. This
may damage the headlights or cause condensation to build up on the lens.
■ To prevent damage or fire
● Make sure bulbs are fully seated and locked.
● Check the wattage of the bulb before installing to prevent heat damage.

465
When trouble arises7
4RUNNER (U)7-1. Essential information
Emergency flashers .......... 466
If your vehicle has to be stopped in
an emergency ................. 467
If the vehicle is submerged or water
on the road is rising ........ 468
7-2. Steps to take in an emergency
If your vehicle needs to be towed ..................... 469
If you think something is wrong .......................... 475
Fuel pump shut off system ............................ 476
If a warning light turns on or a warning
buzzer sounds ................ 477
If a warning message is displayed ..................... 488
If you have a flat tire.......... 493
If the engine will not start ................................. 509
If you cannot operate back door opener ............ 511
If the electronic key does not operate
properly ........................... 512
If the vehicle battery is discharged ................... 515
If your vehicle overheats ........................ 519
If the vehicle becomes stuck ............................... 522

4677-1. Essential information
7
When trouble arises
4RUNNER (U)
Steadily step on the brake pedal with both feet and firmly depress it.
Do not pump the brake pedal repeatedly as this will increase th e effort
required to slow the vehicle.
Shift the shift lever to N.
If the shift lever is shifted to N
After slowing down, stop the vehi cle in a safe place by the road.
Stop the engine.
If the shift lever cann ot be shifted to N
Keep depressing the brake pedal with both feet to reduce vehicl e
speed as much as possible.
To stop the engine, press and
hold the engine switch for 2
consecutive seconds or more,
or press it briefly 3 times or
more in succession.
Stop the vehicle in a s afe place by the road.
If your vehicle has to be stopped in an
emergency
Only in an emergency, such as if it becomes impossible to stop
the vehicle in the normal way, st op the vehicle using the follow-
ing procedure:
1
2
3
4
3
Press and hold for 2 seconds or more
or press briefly 3 times or more
4
WARNING
■ If the engine has to be turned off while driving
Power assist for the brakes and steering wheel will be lost, making the
brake pedal harder to depress and the steering wheel heavier to turn.
Decelerate as much as possible before turning off the engine.
5

4687-1. Essential information
4RUNNER (U)
●If the door can be opened, open the door and exit the vehicle.
● If the door can not be opened, open the window using the power
window switch and ens ure an escape route.
● If the window can be opened, exit the vehicle through the windo w.
● If the door and window cannot be opened due to the rising water ,
remain calm, wait until the water level inside the vehicle rises to the
point that the water pressure inside of the vehicle equals the water
pressure outside of the vehicle and then open the door after wa iting
for the rising water to enter the vehicle, and exit the vehicle . When
the outside water level exc eeds half the height of the door, the door
cannot be opened from the inside due to water pressure.
■ Water level exceeds the floor
When the water level exceeds the floor and time has passed, the electrical
equipment will get damaged, the power windows will not operate, the engine
stop, and the vehicle may not be able to get moving.
■ Using an emergency escape hammer
*
Laminated glass is used in the windshield on this vehicle. Laminated glass
cannot be shattered with an emergency hammer
*.
Tempered glass is used in the windows on this vehicle.
*: Contact your Toyota dealer or aftermarket accessory manufacturer for fur-
ther information about an emergency hammer.
If the vehicle is submerged or water on the
road is rising
This vehicle is not designed to be able to drive on roads that are
deeply flooded with water. Do not drive on roads where the
roads may be submerged or the water may be rising. It is dan-
gerous to remain in the vehicle, if it anticipated that the veh icle
will be flooded or set a drift. Re main calm and follow the follow-
ing.
WARNING
■ Caution while driving
Do not drive on roads where the roads may be submerged or the w ater may
be rising. Otherwise the vehicle may be damaged and cannot move, as well
as become flooded and set a drift, which may lead to death.

469
7
When trouble arises
4RUNNER (U)
7-2. Steps to take in an emergency
If your vehicle needs to be towed
If towing is necessary, we recommend having your vehicle
towed by your Toyota dealer or commercial towing service,
using a wheel-lift type t ruck or flatbed truck.
Use a safety chain system for all towing, and abide by all stat e/
provincial and local laws.
WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury.
■ When towing the vehicle
■ While towing
When towing using cables or chains, avoid sudden starts, etc. w hich place
excessive stress on the towing eyelets, cables or chains. The towing eye-
lets, cables or chains may become damaged, broken debris may hit people,
and cause serious damage.
2WD models: Be sure to transport the
vehicle with all four wheels raised off the
ground. If the vehicle is towed with the
tires contacting the ground, the drivetrain
and related parts may be damaged or an
accident may occur due to a change in
direction of the vehicle.
4WD models: Be sure to transport the
vehicle with all four wheels raised off the
ground. If the vehicle is towed with the
tires contacting the ground, the drivetrain
or related parts may be damaged, the
vehicle may fly off the truck.

4777-2. Steps to take in an emergency
7
When trouble arises
4RUNNER (U)
If a warning light turns on or a war ning
buzzer sounds
Calmly perform the following actions if any of the warning ligh ts
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 w arning buzzer list
Warning lightWarning light/Details/Actions
(U.S.A.)
(Canada)
Brake system warning li ght (warning buzzer)
• 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.
High coolant temperature warning light (warning
buzzer)
*4
Indicates that the engine coolant temperature is too
high
 Immediately stop the vehicle in a safe place.
Handling method ( P. 519)
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*4
Indicates that the engine oil pressure is too low
 Immediately stop the vehicle in a safe place and
contact your Toyota dealer.

4787-2. Steps to take in an emergency
4RUNNER (U)(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.
SRS warning light
Indicates 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.
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 indi cator light (if equipped)
Indicates a malfunction in the rear differential lock sys-
tem
 Have the vehicle inspected by your Toyota dealer
immediately.
Warning lightWarning light/Details/Actions