TOYOTA 4RUNNER 2023 Owners Manual

3214-5. Using the driving support systems
4
Driving
4RUNNER (U)
■Multi-terrain Select is temporarily canceled when
The front-wheel drive control lever is shifted to H4 when Multi -terrain Select is
in ROCK, MOGUL or LOOSE ROCK mode. The mode indicator will flas h until
the lever is shifted back to L4.
■ If the Multi-terrain Select indicator continues to flash
This may indicate a malfunction in the Multi-terrain Select sys tem.
In this case, Multi-terrain Select is automatically canceled. Have your vehicle
inspected by your Toyota dealer.
■ If the Multi-terrain Select indicator goes off while Multi-terrain Select is
operating
●One of the vehicle systems related to Multi-terrain Select may be malfunc-
tioning.
Have your vehicle inspected by your Toyota dealer.
●
The brake actuator may be at risk of overheating.
A buzzer will sound, the “A-TRAC” indicator will go off and the “TRAC OFF”
indicator will come on. Stop the vehicle in a safe place. Refrain from using
Multi-terrain Select until the “A-TRAC” indicator comes back on and the
“TRAC OFF” indicator goes off. (The vehicle can still be driven, even if Multi-
terrain Select is inoperative.)
In the above cases, Multi-terrain Select is automatically canceled.
WARNING
■ Before driving
To avoid an accident, observe the precautions relating to off-road driving.
(P. 335)
■ When using Multi-terrain Select
● Do not use the Multi-terrain Select system for normal (on-road) driving.
The Multi-terrain Select system is designed for off-road use on l y.
● Do not overly rely on Multi-terrain Select. This function does not extend
the vehicle’s performance limitations. Always check the terrain thoroughly
and drive safely.
● The recommended modes for the listed terrains ( P. 316) are only a refer-
ence. The selected mode may not be suitable to actual off-road conditions
due to factors such as the type or unevenness of the terrain or the degree
of incline. Check the actual terrain thoroughly and drive safel y.
● After selecting a mode, make sure that the Multi-terrain Select indicator
and the selected mode indicator come on. If any related indicator flashes,
the vehicle is not under Multi-terrain Select control.

3224-5. Using the driving support systems
4RUNNER (U)
◆ABS (Anti-lock Brake System)
Helps to prevent wheel lock when the brakes are applied suddenl y,
or if the brakes are applied while driving on a slippery road surface
◆Multi Terrain ABS (Anti-lock Brake System) (if equipped)
Helps to prevent wheel lock when the brakes are applied suddenl y,
or if the brakes are applied while driving on a slippery road s urface,
or in off-road conditions (such as rough roads, sand and mud)
The Multi Terrain ABS operates in synchronization with the Multi-
terrain Select.
◆Brake assist
Generates an increased level of braking force after the brake p edal
is depressed when the system de tects a panic stop situation
◆VSC (Vehicle Stability Control)
Helps the driver to control skidding when swerving suddenly or
turning on slippery road surfaces
◆Trailer Sway Control
Helps the driver to control trailer sway by selectively applying brake
pressure for individual wheels and reducing driving torque when
trailer sway is detected.
◆TRAC (Traction Control)
Helps to maintain drive power and prevent the drive wheels from
spinning when starting the vehicl e or accelerating on slippery roads
Driving assist systems
To keep driving safety and perf ormance, the following systems
operate automatically in respon se to various driving situations.
Be aware, however, that these systems are supplementary and
should not be relied upon too heav ily when operating the vehi-
cle.

3234-5. Using the driving support systems
4
Driving
4RUNNER (U)
◆Hill-start assist control
Helps to reduce the backward movement of the vehicle when start-
ing on an uphill
◆LSD (Limited Slip Diff erential) (if equipped)
Transfers drive power to the rear tires when front tires spin, and
vice versa, in order to improve traction
◆KDSS (Kinetic Dynamic Susp ension System) (if equipped)
Enhances ride comfort and handli ng response by using a hydraulic
control system to control the su spension stabilizer bars in response
to road surface and driving conditions during cornering or off- road
driving
The slip indicator light will flash
while the TRAC/VSC/Trailer Sway
Control system s are operating.
The slip indicator light will flash
while the TRAC/VSC/Trailer Sway
Control/hill-start assist control
systems are operating.
A buzzer (intermittent) sounds
when the hill-start assist control
system is operating.
When the TRAC/VSC/Trailer Sway Control systems are operating
(2WD models)
When the TRAC/VSC/Trailer Sway C ontrol/hill-start assist control
systems are operating (4WD models)

3244-5. Using the driving support systems
4RUNNER (U)
If the vehicle gets stuck in mud, dirt or snow, the TRAC system may
reduce power from the engine to the wheels. Pressing to turn
the system off may make it easier for you to rock the vehicle i n order
to free it.
■Turning off the TRAC system (turning on the AUTO LSD system:
P. 304)
To turn the TRAC system off,
quickly press and release
.
The VSC OFF and “AUTO LSD”
indicators will come on.
Press again to turn the
system back on.
Disabling the TRAC system (2WD models)

3254-5. Using the driving support systems
4
Driving
4RUNNER (U)■
Turning off TRAC, VSC and Tr
ailer Sway Control systems
To turn the TRAC, VSC and
Trailer Sway Control systems
off, press and hold for
more than 3 seconds while the
vehicle is stopped.
The “TRAC OFF” indicator light
and the VSC OFF indicator light
will come on.
Press again to turn the
systems back on.
If the vehicle gets stuck in mud, dirt or snow, the TRAC system may
reduce power from the engine to the wheels. Pressing to turn
the system off may make it easier for you to rock the vehicle i n order
to free it.
Disabling the TRAC system (4WD models)

3264-5. Using the driving support systems
4RUNNER (U)■
Turning off the TRAC system
To turn the TRAC system off,
quickly press and release
.
The “TRAC OFF” indicator light
will come on.
Press again to turn the
system back on.
■
Turning off TRAC, VSC and Tr ailer Sway Control systems
To turn the TRAC, VSC and
Trailer Sway Control systems
off, press and hold for
more than 3 seconds while the
vehicle is stopped.
The “TRAC OFF” indicator light
and the VSC OFF indicator light
will come on.
Press again to turn the
systems back on.

3274-5. Using the driving support systems
4
Driving
4RUNNER (U)
■When the “TRAC OFF” indicator light comes on even if has not
been pressed
TRAC, hill-start assist control, downhill assist control and cr awl control are
temporary deactivated. If the indicator light continues to rema in on, contact
your Toyota dealer.
■ When the VSC or TRAC system is turned off by pressing the VSC o ff
switch
On vehicles with pre-collision system, pre-collision brake assi st and pre-colli-
sion braking will also be disabled. The PCS warning light will come on and
the message will be shown on the multi-information display. ( P. 248)
■ Operating conditions of hill-start assist control
When the following conditions are met, the hill-start assist co ntrol will operate:
2WD models
● The shift lever is in a position other than P or N (when starting off forward/
backward on an upward incline)
● The vehicle is stopped
● The accelerator pedal is not depressed
● The parking brake is not engaged
4WD models
● The system has detected that the vehicle is moving backward
● The shift lever is in a position other than P or N (when starting off forward/
backward on an upward incline)
● The brake pedal is not depressed.
● The rear differential is not locked.(if equipped)
■ Automatic system cancelation of hill-start assist control (2WD models)
The hill-start assist control will turn off in any of the following situations:
● The shift lever is shifted to P or N
● The accelerator pedal is depressed
● The parking brake is engaged
● 2 seconds at maximum elapsed after the brake pedal is released
■ When the brake system o perates continuously
The brake actuator may overheat. In this case, the TRAC and hil l-start assist
control systems will stop operating, a buzzer will sound and th e “TRAC OFF”
indicator will come on. Refrain from using the system until the “TRAC OFF”
indicator turns off. (There is no problem with continuing norma l driving.)

3284-5. Using the driving support systems
4RUNNER (U)■
Sounds and vibrations caused by the ABS, Multi Terrain ABS (if
equipped), brake assist, VSC, Trailer Sway Control, TRAC and hi ll-start
assist control systems
● A sound may be heard from the engine compartment when the brake pedal
is depressed repeatedly, when the engine is started or just aft er the vehicle
begins to move. This sound does not indicate that a malfunction has
occurred in any of these systems.
● Any of the following conditions may occur when the above system s are
operating. None of these indicates that a malfunction has occur red.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard also after the vehicle comes to a s top.
• The brake pedal may pulsate slightly after the ABS or Multi Te rrain ABS is
activated.
• The brake pedal may move down slightly after the ABS or Multi Te r r a i n
ABS is activated.
■ Automatic reactivation of TRAC, Trailer Sway Control and VSC sy stems
After turning the TRAC, Trailer Sway Control and VSC systems of f, the sys-
tems will be automatically re-enabled in the following situatio ns:
● When the engine switch is turned off
● 2WD models: If the AUTO LSD system is turned on, the VSC, TRAC and
Trailer Sway Control systems will turn on when vehicle speed in creases
● 4WD models: If only the TRAC system is turned off, the TRAC wil l turn on
when vehicle speed increases
If both the TRAC and VSC systems are turned off, automatic re-enabling will
not occur when vehicle speed increases.

3294-5. Using the driving support systems
4
Driving
4RUNNER (U)
WARNING
■The ABS and Multi Terrain ABS do not operate effectively when
● The limits of tire gripping performance have been exceeded (such as
excessively worn tires on a snow covered road).
● The vehicle hydroplanes while driving at high speed on wet or s lick roads.
■ Stopping distance when the ABS o r Multi Terrain ABS is operating may
exceed that of normal conditions
The ABS and Multi Terrain ABS are not designed to shorten the vehicle’s
stopping distance. Always maintain a safe distance from the vehicle in front
of you, especially in the following situations:
● When driving on dirt, gravel or snow-covered roads
● When driving with tire chains
● When driving over bumps in the road
● When driving over roads with potholes or uneven surfaces
■ TRAC/VSC may not operate effectively when
Directional control and power may not be achievable while driving on slip-
pery road surfaces, even if the TRAC/VSC system is operating.
Drive the vehicle carefully in conditions where stability and p ower may be
lost.
■ Hill-start assist control does not operate effectively when
2WD models
● Do not overly rely on the hill-start assist control. Hill-start assist control
may not operate effectively on steep inclines and roads covered with ice.
● Unlike the parking brake, hill-start assist control is not inte nded to hold the
vehicle stationary for an extended period of time. Do not attempt to use
hill-start assist control to hold the vehicle on an incline, as doing so may
lead to an accident.
4WD models
Do not overly rely on the hill-start assist control. The hill-s tart assist control
may not operate effectively on a steep uphill and roads covered with ice.

3304-5. Using the driving support systems
4RUNNER (U)
WARNING
■When the TRAC/VSC/Trailer Sway Control is activated
The slip indicator light flashes. Always drive carefully.
Reckless driving may cause an accident. Exercise particular car e when the
indicator light flashes.
■ When TRAC/VSC/Trailer Sway Control systems are turned off
Be especially careful and drive at a speed appropriate to the r oad condi-
tions. As these are systems to help ensure vehicle stability and driving
force, do not turn the TRAC/VSC/Trailer Sway Control systems off unless
necessary.
■ Replacing tires
Make sure that all tires are of the specified size, brand, trea d pattern and
total load capacity. In addition, make sure that the tires are inflated to the
recommended tire inflation pressure level.
The ABS, Multi Terrain ABS, TRAC, VSC and Trailer Sway Control will not
function correctly if different tires are installed on the vehi cle.
Contact your Toyota dealer for further information when replaci ng tires or
wheels.
■ Handling of tires and the suspension
Using tires with any kind of problem or modifying the suspensio n will affect
the driving assist systems, and may cause a system to malfunction.
■ Trailer Sway Control precaution
The Trailer Sway Control system is not able to reduce trailer sway in all situ-
ations.
Depending on many factors such as the conditions of the vehicle, trailer,
road surface and driving environment, the Trailer Sway Control system may
not be effective. Refer to your trailer owner’s manual for info rmation on how
to tow your trailer properly.
■ If trailer sway occurs
Observe the following precautions.
Failing to do so may cause death or serious injury.
● Firmly grip the steering wheel. Steer straight ahead.
Do not try to control trailer sway by turning the steering whee l.
● Begin releasing the accelerator pedal immediately but very grad ually 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. ( P. 195)