engine TOYOTA 4RUNNER 2021 Owners Manual (in English)

2674-5. Using the driving support systems
4
Driving
4RUNNER (U)
Press the LDA switch to turn the
LDA system on.
The LDA indicator illuminates and
a message is displayed on the
multi-information display.
Press the LDA switch again to turn
the LDA system off.
When the LDA system is turned on
or off, operation of the LDA system
continues in the same condition
the next time the engine is started.
Turning LDA system on

2794-5. Using the driving support systems
4
Driving
4RUNNER (U)
Pressing the switch changes the
vehicle-to-vehicle distance as fol-
lows:Long
Medium
Short
The vehicle-to-vehicle distance is
set automatically to long mode
when the engine switch is turned to
the “ON” position (vehicles without
a smart key system) or IGNITION
ON mode (vehicles with a smart
key system).
If a vehicle is running ahead of you, the preceding vehicle mar k will also be
displayed.
Select a distance from the tabl e below. Note that the distances shown
correspond to a vehicle speed of 50 mph (80 km/h). Vehicle-to-v ehicle
distance increases/decreases in accordance with vehicle speed.
Changing the vehicle-to-vehicle d istance (vehicle-to-vehicle dis-
tance control mode)
Preceding
vehicle mark
1
2
3
Vehicle-to-vehicle distance settings (vehicle-to-vehicle distan ce
control mode)
Distance optionsVehicle-to-vehicle distance
LongApproximately 160 ft. (50 m)
MediumApproximately 130 ft. (40 m)
ShortApproximately 100 ft. (30 m)

2894-5. Using the driving support systems
4
Driving
4RUNNER (U)
■Intuitive parking assist can be operated when
●Front corner sensors:
• The engine switch is in the “ON” position (without a smart key system) or
the engine switch is in IGNITION ON mode (with a smart key syst em).
• The shift lever is in a position other than P.
• The vehicle speed is less than approximately 6 mph (10 km/h).
● Rear corner and rear center sensors:
• The engine switch is in the “ON” position (without a smart key system) or
the engine switch is in IGNITION ON mode (with a smart key syst em).
• The shift lever is in R.
■ Intuitive parking assist display
When an obstacle is detected while the Toyota parking assist mo nitor is in
use, the warning indicator will appear in the upper part of the screen even if
the display setting has been set to off.
■ Sensor detection information
●The sensor’s detection areas are limited to the areas around th e vehicle’s
front corner and rear bumpers.
● Certain vehicle conditions and the surrounding environment may affect the
ability of the sensor to correctly detect obstacles. Particular instances where
this may occur are listed below.
• There is dirt, snow or ice on the sensor. (Wiping the sensors will resolve
this problem.)
• The sensor is frozen. (Thawing the area will resolve this problem.)
In especially cold weather, if a sensor is frozen the screen ma y show an
abnormal display, or obstacles may not be detected.
• The sensor is covered in any way.
• The vehicle is leaning considerably to one side.
• On an extremely bumpy road, on an incline, on gravel, or on gr ass.
• The vicinity of the vehicle is noisy due to vehicle horns, motorcycle
engines, air brakes of large vehicles, or other loud noises pro ducing ultra-
sonic waves.
• There is another vehicle equipped with parking assist sensors in the
vicinity.
• The sensor is coated with a sheet of spray or heavy rain.
• The vehicle is equipped with a fender pole or wireless antenna .
• Towing eyelet is installed.
• The bumper or sensor receives a strong impact.
• The vehicle is approaching a tall or curved curb.
• In harsh sunlight or intense cold weather.
• The area directly under the bumpers is not detected.
• If obstacles draw too close to the sensor.
• A non-genuine Toyota suspension (lowered suspension etc.) is i nstalled.
• People may not be detected if they are wearing certain types o f clothing.
In addition to the examples above, there are instances in which, because of
their shape, signs and other objects may be judged by the senso r to be
closer than they are.

2984-5. Using the driving support systems
4RUNNER (U)■
Shifting from L4L to H4L
Stop the vehicle completely and continue to depress the brake
pedal.
Shift the shift lever to N.
Push the “UNLOCK” button
and turn the four-wheel drive
control switch to H4L.
Maintain this condition until the
low speed four-wheel drive indi-
cator goes off.
■The four-wheel drive control sw itch can be operated when
The engine switch is in IGNITION ON mode.
■ When the four-wheel d rive control switch is turned to L4L
VSC and TRAC are automatically turned off.
■ If the center differential lock indicator flashes
Locking or unlocking of the center differential is not complete . Drive straight
ahead while accelerating or decelerating, or drive in reverse.
■ If the center differential lock indicator flashes and a buzzer sounds
Locking of the center differential is not complete. Stop the wh eels from slip-
ping or spinning and, if the indicator still flashes, operate the four-wheel drive
control switch again.
■ If the low speed four-wheel dri ve indicator continues to flash
The transfer mode may not successfully change. Operate the four -wheel
drive control switch again.
1
2
3

3014-5. Using the driving support systems
4
Driving
4RUNNER (U)
If all wheels spin, the slip indicator
flashes to indicate that the active
traction control system has been
engaged.
■When the rear differential is locked (vehicles with a rear diff erential lock
system)
The active traction control system is activated only when vehic le speed is
less than 4 mph (6 km/h).
■ Sounds and vibrations caused by the active traction control sys tem
● A sound may be heard from the engine compartment when the engin e is
started or just after the vehicle begins to move. This sound do es not indicate
that a malfunction has occurred in the system.
● Vibrations may be felt through the vehicle body and steering. T his may
occur when the system is operating.
■ If the brake system overheats
The system will cease operation and a buzzer will sound to aler t the driver. At
this time, the “A-TRAC” indicator will go off and the “TRAC OFF ” indicator will
come on. Stop the vehicle in a safe place. (There is no problem with continu-
ing normal driving.)
The system will be automatically restored after a short time.
When the active traction co ntrol system is operating
WARNING
■The active traction control system may not operate effectively when
Directional control and power may not be achievable while driving on slip-
pery road surfaces, even if the active traction control system is operating.
Do not drive the vehicle in conditions where stability and powe r may be lost.

3024-5. Using the driving support systems
4RUNNER (U)
The system can be used on 2WD models.
Press to turn on the system.
At this time, the “AUTO LSD” and
VSC OFF indicators will come on.
To turn off the system, press
again.
AUTO LSD system (2WD models)
The AUTO LSD system aids trac tion by using the traction con-
trol system to control engine performance and braking when
one of the drive wheels begins to spin.
The system should be used only when one of the drive wheels
spinning occurs in a ditch or rough surface.
System operation

3034-5. Using the driving support systems
4
Driving
4RUNNER (U)
If the drive wheels spin, the slip
indicator flashes to indicate that
the AUTO LSD system has con-
trolled the spinning of the drive
wheels.
■If the engine is turned off and restarted
The AUTO LSD system and the indicators are automatically turned off.
■ Reactivation of the VSC syst em linked to vehicle speed
When the AUTO LSD system is turned on, the VSC, TRAC and Traile r Sway
Control systems will turn on automatically if vehicle speed inc rease.
■ If the brake system overheats
The system will cease operation and a buzzer will alert the driver. At this time,
the “AUTO LSD” indicator will flash and the “TRAC OFF” indicator will come
on. Stop the vehicle in a safe place. (There is no problem with continuing nor-
mal driving.) The system will be automatically restored after a short time.
When the AUTO LSD system is operating
WARNING
■To avoid an accident
Failure to do so, a much greater steering effort and more careful cornering
control will be required.
● Do not use the AUTO LSD system in conditions other than when on e of
the drive wheels spinning occurs in a ditch or rough surface.
● Do not drive with the AUTO LSD system continuously turned on.
NOTICE
■Activating while driving
Do not activate the AUTO LSD system if the wheel is slipping.
Stop the slipping or spinning before activating.

3094-5. Using the driving support systems
4
Driving
4RUNNER (U)■
Sounds and vibrations caused b y the downhill assist control system
● A sound may be heard from the engine compartment when the engin e is
started or just after the vehicle begins to move. This sound do es not indicate
that a malfunction has occurred in downhill assist control syst em.
● Either of the following conditions may occur when the downhill assist control
system is operating. None of these are indicators that a malfun ction has
occurred.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard after the vehicle comes to a stop.
■ System malfunction
In the following cases, have your vehicle checked by your Toyot a dealer.
● The downhill assist control system indicator does not come on w hen the
engine switch is turned to the “ON” position (vehicles without a smart key
system) or the engine switch is turned to IGNITION ON mode (veh icles with
a smart key system).
● The downhill assist control system indicator does not come on w hen the
“DAC” switch is pressed.
● The slip indicator comes on.
WARNING
■When using downhill assist control system
Do not rely overmuch on the downhill assist control system. Thi s function
does not extend the vehicle’s performance limitations. Always t horoughly
check the road conditions, and drive safely.
■ The system may not operate on the following surfaces, which may lead
to an accident causing death or serious injury
● Slippery surfaces such as wet or muddy roads
● Icy surface
● Unpaved roads

3114-5. Using the driving support systems
4
Driving
4RUNNER (U)■
Speed modes
The following table shows
some typical terrains and the
recommended speed modes.
■
Crawl Control can be operated when
●The engine is running.
● The shift lever is in any position other than P or N.
● The front-wheel drive control lever or switch is in L4.
● The driver’s door is closed.
■ Crawl Control is temporarily canceled when
Vehicle speed exceeds 15 mph (25 km/h). The Crawl Control indic ator
flashes until the vehicle speed is reduced.
ModeRoad condition
L (Low)Rock, mogul (downhill) and gravel
(downhill)
Between L and M
Mogul (uphill)
M (Medium)
Snow, mud, gravel (uphill), sand, dirt,
mogul (uphill) and grassBetween M and H
H (High)
1
2
3
4
5

3124-5. Using the driving support systems
4RUNNER (U)■
Automatic system cancelation
In the following situations, the system will cease operation an d a buzzer will
sound to alert the driver. The Cr awl Control indicator will flash until the system
is turned off completely.
● When the shift lever is shifted to P or N
● When the front-wheel drive control lever or switch is shifted t o H4
● When the driver’s door is opened
● When the system is malfunctioning
● When the brake system overheats
Stop the vehicle in a safe place. (There is no problem with con tinuing normal
driving.)
● When the automatic transmission system overheats
Stop the vehicle in a safe place until the automatic transmissi on fluid tem-
perature warning light goes off.
■ Sounds and vibrations caused by the Crawl Control system
● A sound may be heard from the engine compartment when the engin e is
started or just after the vehicle begins to move. This sound do es not indicate
that a malfunction has occurred in Crawl Control system.
● Either of the following conditions may occur when the Crawl Con trol system
is operating. None of these indicates that a malfunction has occurred.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard after the vehicle comes to a stop.
■ When there is a malfunction in the system
Warning lights and/or warning messages will turn on. ( P. 474, 484)
WARNING
■When using Crawl Control
● Do not overly rely on Crawl Control. This function does not ext end the
vehicle’s performance limitations. Always check the terrain tho roughly and
drive safely.
● The recommended speed modes for the listed terrains ( P. 311) are only
a reference. The selected mode may not be suitable to actual of f-road con-
ditions due to factors such as the type or unevenness of the te rrain or the
degree of incline. Check the actual terrain thoroughly and drive safely.
● After activating Crawl Control, make sure that the Crawl Contro l indicator
comes on. If the indicator flashes, the vehicle is not under system control.
■ Conditions under which the system may not operate correctly
When driving on the following surfaces, the system may not be a ble to
maintain a fixed low speed, which may result in an accident:
● Extremely steep inclines
● Extremely uneven surfaces
● Snow-covered roads, or other slippery surfaces