Toyota 4Runner (2020 year). Instruction - page 13

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Weight carrying ball position:
50.1 in. (1272 mm)
Hitch receiver pin hole position:
43.7 in. (1109 mm)

Use the wire harness stored in the
rear end under body.

Please consult your dealer when installing trailer lights, as incorrect
installation may cause damage to the vehicle’s lights. Please take
care to comply with your state’s laws when installing trailer lights.

Service connector for towing brake controller

Positions for towing hitch receiver and hitch ball

1

2

Connecting trailer lights

Your vehicle is equipped with a service

connector for the trailer brake controller

as shown.

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Your vehicle will handle differently when towing a trailer. Help to avoid
an accident, death or serious injury, keep the following in mind when
towing:

Speed limits for towing a trailer vary by state or province. Do not
exceed the posted towing speed limit.

Toyota recommends that the vehicle-trailer speed limit is 65 mph
(104 km/h) on a flat, straight, dry road. Do not exceed this limit, the
posted towing speed limit or the speed limit for your trailer as set
forth in your trailer owner’s manual, whichever is lowest. Instability
of the towing vehicle-trailer combination (trailer sway) increases as
speed increases. Exceeding speed limits may cause loss of control.

Before starting out, check the trailer lights, tires and the vehicle-
trailer connections. Recheck after driving a short distance.

Practice turning, stopping and reversing with the trailer attached in
an area away from traffic until you become accustomed to the feel
of the vehicle-trailer combination.

Reversing with a trailer attached is difficult and requires practice.
Grip the bottom of the steering wheel and move your hand to the
left to move the trailer to the left. Move your hand to the right to
move the trailer to right. (This is generally opposite to reversing
without a trailer attached.) Avoid sharp or prolonged turning. Have
someone guide you when reversing to reduce the risk of an acci-
dent.

As stopping distance is increased when towing a trailer, vehicle-to
vehicle distance should be increased. For each 10 mph (16 km/h)
of speed, allow at least one vehicle and trailer length.

Avoid sudden braking as you may skid, resulting in the trailer jack-
knifing and a loss of vehicle control. This is especially true on wet or
slippery surfaces.

Trailer towing tips

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Avoid jerky starts or sudden acceleration.

Avoid jerky steering and sharp turns, and slow down before making
turn.

Note that when making a turn, the trailer wheels will be closer than
the vehicle wheels to the inside of the turn. Compensate by making
a wider than normal turning radius.

Slow down before making a turn, in cross winds, on wet or slippery
surfaces, etc.
Increasing vehicle speed can destabilize the trailer.

Take care when passing other vehicles. Passing requires consider-
able distance. After passing a vehicle, do not forget the length of
your trailer, and be sure you have plenty of room before changing
lanes.

To maintain engine braking efficiency and charging system perfor-
mance when using engine braking, do not put the transmission in
D.

Instability happens more frequently when descending steep or long
downhill grades. Before descending, slow down and downshift. Do
not make sudden downshifts while descending steep or long down-
hill grades.

Avoid holding the brake pedal down too long or applying the brakes
too frequently. This could cause the brakes to overheat and result in
reduced braking efficiency.

Due to the added load of the trailer, your vehicle’s engine may over-
heat on hot days (at temperatures over 85°F [30°C]) when driving
up a long or steep grade. If the engine coolant temperature gauge
indicates overheating, immediately turn off the air conditioning (if in
use), pull your vehicle off the road and stop in a safe spot.
(

P. 517)

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Always place wheel blocks under both the vehicle’s and the trailer’s
wheels when parking. Apply the parking brake firmly, and put the
transmission in P. Avoid parking on a slope, but if unavoidable, do
so only after performing the following:

Apply the brakes and keep them applied.
Have someone place wheel blocks under both the vehicle’s and
trailer’s wheels.
When the wheel blocks are in place, release the brakes slowly
until the blocks absorb the load.
Apply the parking brake firmly.
Shift into P and turn off the engine.

When restarting after parking on a slope:

With the transmission in P, start the engine. Be sure to keep the
brake pedal pressed.
Shift into a forward gear. If reversing, shift into R.
Release the parking brake and brake pedal, and slowly pull or
back away from the wheel blocks. Stop and apply the brakes.
Have someone retrieve the blocks.

Matching trailer ball height to trailer coupler height

1

2

3

4

5

1

2

3

4

No matter which class of tow hitch
applies, for a more safe trailer hookup,
the trailer ball setup must be the proper
height for the coupler on the trailer.

Coupler
Trailer ball

1

2

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Before towing

Check that the following conditions are met:

Ensure that your vehicle’s tires are properly inflated. (

P. 530)

Trailer tires are inflated according to the trailer manufacturer’s recommen-
dation.

All trailer lights work as required by law.

All lights work each time you connect them.

The trailer ball is set at the proper height for the coupler on the trailer.

The trailer is level when it is hitched.
Do not drive if the trailer is not level, and check for improper tongue weight,
overloading, worn suspension, or other possible causes.

The trailer cargo is securely loaded.

The rear view mirrors conform to all applicable federal, state/provincial or
local regulations. If they do not, install rear view mirrors appropriate for tow-
ing purposes.

Break-in schedule

If your vehicle is new or equipped with any new power train components
(such as an engine, transmission, differential or wheel bearing), Toyota rec-
ommends that you do not tow a trailer until the vehicle has been driven for
over 500 miles (800 km).
After the vehicle has been driven for over 500 miles (800 km), you can start
towing. However, for the next 500 miles (800 km), drive the vehicle at a speed
of less than 45 mph (72 km/h) when towing a trailer, and avoid full throttle
acceleration.

Maintenance

If you tow a trailer, your vehicle will require more frequent maintenance due
to the additional load. (See “Scheduled Maintenance Guide” or “Owner’s
Manual Supplement”.)

Retighten the fixing bolts of the towing ball and bracket after approximately
600 miles (1000 km) of trailer towing.

If trailer sway occurs

One or more factors (crosswinds, passing vehicles, rough roads, etc.) can
adversely affect handling of your vehicle and trailer, causing instability.

If trailer swaying occurs:
• Firmly grip the steering wheel. Steer straight ahead.

Do not try to control trailer swaying by turning the steering wheel.

• Begin releasing the accelerator pedal immediately but very gradually to

reduce speed.
Do not increase speed. Do not apply vehicle brakes.

If you make no extreme correction with the steering or brakes, your vehicle
and trailer should stabilize. (if enabled, Trailer Sway Control can also help to
stabilize the vehicle and trailer.)

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After the trailer swaying has stopped:
• Stop in a safe place. Get all occupants out of the vehicle.
• Check the tires of the vehicle and the trailer.
• Check the load in the trailer.

Make sure the load has not shifted.
Make sure the tongue weight is appropriate, if possible.

• Check the load in the vehicle.

Make sure the vehicle is not overloaded after occupants get in.

If you cannot find any problems, the speed at which trailer swaying occurred
is beyond the limit of your particular vehicle-trailer combination.
Drive at a lower speed to prevent instability. Remember that swaying of the
towing vehicle-trailer increases as speed increases.

WARNING

Trailer towing precautions

To tow a trailer safely, use extreme care and drive the vehicle in accordance
with the trailer’s characteristics and operating conditions. Failure to do so
could cause an accident resulting in death or serious injury. Vehicle stability
and braking performance are affected by trailer stability, brake setting and
performance, and the hitch. Your vehicle will handle differently when towing
a trailer.

To avoid accident or injury

Do not exceed the TWR, unbraked TWR, GCWR, GVWR or GAWR.

If the gross trailer weight is over 2000 lb. (907 kg), a sway control device
with sufficient capacity is required.

Adjust the tongue weight within the appropriate range. Place heavier loads
as close to the trailer axle as possible.

Do not exceed 65 mph (104 km/h), the posted towing speed limit or the
speed limit for your trailer as set forth in your trailer owner’s manual,
whichever is lowest. Slow down sufficiently before making a turn, in cross
winds, on wet or slippery surface, etc. to help avoid an accident. If you
experience a vehicle-trailer instability from reducing a certain speed, slow
down and make sure you keep your vehicle speed under the speed of
which you experience the instability.

Do not make jerky, abrupt or sharp turns.

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WARNING

Do not apply the brakes suddenly as you may skid, resulting in jackknifing
and loss of vehicle control. This is especially true on wet or slippery sur-
faces.

Do not exceed the trailer hitch assembly weight, gross vehicle weight,
gross axle weight and trailer tongue weight capacities.

Do not use cruise control when towing.

Slow down and downshift before descending steep or long downhill
grades. Do not make sudden downshifts while descending steep or long
downhill grades.

Vehicle-trailer instability is more likely on steep long downhills. Before
descending steep or long downhill grades, slow down and downshift. Do
not make sudden downshifts when descending steep or long downhill
grades. Avoid holding the brake pedal down too long or applying the
brakes too frequently. This could cause the brakes to overheat and result
in reduced braking efficiency.

Hitch

Trailer hitch assemblies have different weight capacities established by the
hitch manufacturer. Even though the vehicle may be physically capable of
towing a higher weight, the operator must determine the maximum weight
rating of the particular hitch assembly and never exceed the maximum
weight rating specified for the trailer-hitch. Exceeding the maximum weight
rating set by the trailer-hitch manufacturer can cause an accident resulting
in death or serious personal injuries.

When towing a trailer

Toyota recommends trailers with brakes that conform to any applicable fed-
eral and state/provincial regulations.

If the gross trailer weight exceeds unbraked TWR, trailer brakes are
required. Toyota recommends trailers with brakes that conform to all appli-
cable federal and state/provincial regulations.

Never tap into your vehicle’s hydraulic system, as this will lower the vehi-
cle’s braking effectiveness.

Never tow a trailer without using a safety chain securely attached to both
the trailer and the vehicle. If damage occurs to the coupling unit or hitch
ball, there is danger of the trailer wandering into another lane.

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NOTICE

When installing a trailer hitch

Use only the position recommended by your Toyota dealer. Do not install
the trailer hitch on the bumper; this may cause body damage.

Do not directly splice trailer lights

Do not directly splice trailer lights. Directly splicing trailer lights may damage
your vehicle’s electrical system and cause a malfunction.

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Dinghy towing

Your vehicle is not designed to be dinghy towed (with 4 wheels
on the ground) behind a motor home.

NOTICE

To avoid serious damage to your vehicle

Do not tow your vehicle with the four wheels on the ground.

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4-2. Driving procedures

Check that the parking brake is set.
Check that the shift lever is set in P.
Firmly depress the brake pedal.
Turn the engine switch to the “START” position to start the engine.

“LOCK”

The steering wheel is locked and
the key can be removed. (The key
can be removed only when the
shift lever is in P.)

“ACC”

Some electrical components such
as the audio system can be used.

“ON”

All electrical components can be used.

“START”

For starting the engine.

Engine (ignition) switch (vehicles without a

smart key system)

Starting the engine

Changing the engine switch positions

1

2

3

4

1

2

3

4

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Turning the key from “ACC” to “LOCK”

Shift the shift lever to P.

If the engine does not start

The engine immobilizer system may not have been deactivated. (

P. 76)

Contact your Toyota dealer.

When the steering lock cannot be released

Key reminder function

A buzzer sounds if the driver’s door is opened, while the engine switch is in
the “LOCK” or “ACC” position to remind you to remove the key.

Push in the key and turn to the “LOCK”
position.

When starting the engine, the engine
switch may seem stuck in the “LOCK”
position. To free it, turn the key while turn-
ing the steering wheel slightly left and
right.

1

2

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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 circumstances.
Doing so may cause an accident resulting in death or serious injury.

Caution when driving

Do not turn the engine switch to the “LOCK” position while driving. If, in an
emergency, you must turn the engine off while the vehicle is moving, turn
the engine switch only to the “ACC” position to stop the engine. An accident
may result if the engine is stopped while driving.

NOTICE

To prevent battery discharge

Do not leave the engine switch in the “ACC” or “ON” position for long peri-
ods of time without the engine running.

When starting the engine

Do not crank the engine for more than 30 seconds at a time. This may
overheat the starter and wiring systems.

Do not race a cold engine.

If the engine becomes difficult to start or stalls frequently, have the engine
checked immediately.

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Check that the parking brake is set.
Check that the shift lever is set in P.
Firmly depress the brake pedal.

and a message will be displayed on the multi-information display.

If it is not displayed, the engine cannot be started.

Press the engine switch shortly
and firmly.

When operating the engine switch,
one short, firm press is enough. It
is not necessary to press and hold
the switch.
The engine will crank until it starts
or for up to 30 seconds, whichever
is less.
Continue depressing the brake
pedal until the engine is completely
started.
The engine can be started from
any engine switch mode.

Engine (ignition) switch (vehicles with a

smart key system)

Performing the following operations when carrying the elec-
tronic key on your person starts the engine or changes engine
switch modes.

Starting the engine

1

2

3

4

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Stop the vehicle.
Set the parking brake (

P. 224), and shift the shift lever to P.

Press the engine switch.
Release the brake pedal and check that “ACCESSORY” or “IGNI-
TION ON” is not shown on the meter.

Modes can be changed by pressing the engine switch with brake
pedal released. (The mode changes each time the switch is pressed.)

Off

*

The emergency flashers can be
used.

ACCESSORY mode

Some electrical components such
as the audio system can be used.
“ACCESSORY” will be displayed
on the multi-information display.

IGNITION ON mode

All electrical components can be
used.
“IGNITION ON” will be displayed
on the multi-information display.

*

: If the shift lever is in a position other than P when turning off the engine,

the engine switch will be turned to ACCESSORY mode, not to off.

Stopping the engine

Changing engine switch modes

1

2

3

4

1

2

3

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If the engine is stopped with the shift lever in a position other than P,
the engine switch will not be turned off but instead be turned to
ACCESSORY mode. Perform the following procedure to turn the
switch off:

Check that the parking brake is set.
Shift the shift lever to P.
Check that “Turn Power Off” is displayed on the multi-information
display and then press the engine switch once.
Check that “Turn Power Off” on the multi-information display is
turned off.

Auto power off function

If the vehicle is left in ACCESSORY mode for more than 20 minutes or IGNI-
TION ON mode (the engine is not running) for more than an hour with the
shift lever in P, the engine switch will automatically turn off. However, this
function cannot entirely prevent battery discharge. Do not leave the vehicle
with the engine switch in ACCESSORY or IGNITION ON mode for long peri-
ods of time when the engine is not running.

Automatic engine shut off feature

The vehicle is equipped with a feature that automatically shuts off the
engine when the shift lever is in P with the engine running for an extended
period.

The engine will automatically shut off after approximately 1 hour if it has
been left running while the shift lever is in P.

The timer for the automatic engine shut off feature will reset if the brake
pedal is depressed or if the shift lever is in a position other than P.

After the vehicle is parked, if the door is locked with the door lock switch
(

P. 113) from the inside or the mechanical key (

P. 510) from the outside,

the automatic engine shut off feature will be disabled. The timer for the auto-
matic engine shut off feature will be re-enabled if the driver’s door is
opened.

Electronic key battery depletion

P. 106

Conditions affecting operation

P. 122

Notes for the entry function

P. 123

When stopping the engine with the shift lever in a position other
than P

1

2

3

4

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If the engine does not start

The engine immobilizer system may not have been deactivated. (

P. 76)

Contact your Toyota dealer.

Check that the shift lever is securely set in P. The engine may not start if the
shift lever is displaced out of P.

Steering lock

After turning the engine switch off and opening and closing the doors, the
steering wheel will be locked due to the steering lock function. Operating the
engine switch again automatically cancels the steering lock.

When the steering lock cannot be released

Steering lock motor overheating prevention

To prevent the steering lock motor from overheating, the motor may be sus-
pended if the engine is turned on and off repeatedly in a short period of time.
In this case, refrain from operating the engine. After about 10 seconds, the
steering lock motor will resume functioning.

When a message requesting the smart key system be inspected is dis-
played on the multi-information display

The system may be malfunctioning. Have the vehicle inspected by your
Toyota dealer immediately.

If the electronic key battery is depleted

P. 442

Operation of the engine switch

If the switch is not pressed shortly and firmly, the engine switch mode may
not change or the engine may not start.

When the steering lock cannot be
released, “Push the engine switch while
turning the steering wheel in either direc-
tion” will be displayed on the multi-infor-
mation display.
Press the engine switch shortly and firmly
while turning the steering wheel left and
right.

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