2021 TOYOTA 4RUNNER brake

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.

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.

3054-5. Using the driving support systems
4
Driving
4RUNNER (U)
Before using the rear differential lock system:
Stop the vehicle, shift the shift lever to N and shift the front-wheel
drive control lever into L4 to see if this is sufficient. If this has no
effect, additionally use the re ar differential lock system.
Be sure the wheels have stopped spinning.
Press the rear differential lock switch.
Gently depress the accelerator pedal.
After the rear differential is locked, the indicator will come on.
Unlock the rear differential as soon as the vehicle moves.
To unlock the rear different ial, press the switch again.
■Locking the rear differential
The following systems do not operate when the rear differential is locked. It is
normal operation for the ABS warning light and VSC OFF indicato r to be on at
this time.
•ABS
• Multi Terrain ABS
• Brake assist system
•VSC
• Hill-start assist control
■ The rear differential lock is disengaged when
The front-wheel drive control lever or switch is shifted to H2 or H4.
Never forget to turn off the switch after using this feature.
■ After unlocking the rear differential
Check that the indicator goes off.
■ If the rear differential lo ck indicator flashes rapidly
There may be a malfunction in the rear differential lock system . Have the
vehicle inspected by your Toyota dealer immediately.
Using the rear diffe rential lock system
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3074-5. Using the driving support systems
4
Driving
4RUNNER (U)
Press the “DAC” switch.
The downhill assist control system
indicator will comes on and the
system will operate. When the
system is in operation, the slip
indicator will flash, and the stop
lights/high mounted stop lights will
be lit. A sound may also occur
during the operation. This does
not indicated a malfunction.
Press the “DAC” switch while the system is in operation. The downhill
assist control system indicator will flash as the system gradua lly
ceases operation, and will turn off when the system is fully of f. Press
the “DAC” switch while the downh ill assist control system indicator is
flashing to start t he system again.
Downhill assist control system
: If equipped
The downhill assist control system helps to prevent excessive
speed on steep downhill slopes. The system will operate when
the vehicle is traveling under 15 mph (25 km/h) with the accele r-
ator and brake pedals released and the transfer mode is in L4
(part-time 4WD models) or L 4L (full-time 4WD models).
System operation
Turning off the system

3084-5. Using the driving support systems
4RUNNER (U)
■Operating tips
The system will operate when the shift lever is in a position other than P, how-
ever to make effective use of the system it is recommended to select a lower
shift range.
■ The system will not operate when
●Part-time 4WD models: The transfer mode is in H2 or H4.
● Full-time 4WD models: The transfer mode is in H4L or H4F.
■ If the downhill assist control system indicator flashes
●In the following situations, the indicator flashes and the syst em will not oper-
ate:
• The transfer mode is not in L4 (part-time 4WD models) or L4L ( full-time
4WD models).
• The shift lever is in P.
• The accelerator or brake pedal is depressed.
• The vehicle speed exceeds approximately 15 mph (25 km/h).
• The brake system overheats.
● In the following situations, the indicator flashes to alert the driver, but the
system will operate:
• The shift lever is in N.
• The “DAC” switch is turned off while the system is operating. The system will gradually ceases operation. The indicator will flash during
operation, and then go off when the system is fully off.
■ When the downhill assist contro l system is operated continuously
This may cause the brake actuator to overheat. In this case, th e downhill
assist control system will stop operating, a buzzer will sound and the downhill
assist control system indicator will start flashing, and the “T RAC OFF” indica-
tor light will come on. Refrain from using the system until the downhill assist
control system indicator stays on and “TRAC OFF” indicator light turns off.
(The vehicle can be driven normally during this time.)

3104-5. Using the driving support systems
4RUNNER (U)■
Crawl Control switch
“ON/OFF” switch
The Crawl Control indicator comes on and the slip indicator flashes
when operating.
Speed selector dial
Turn the dial clockwise to increase the speed and counterclockw ise to
decrease the speed.
Crawl Control indicator
Slip indicator
Multi-information display
The operating status and speed select status of the Crawl Contr ol are
shown on the multi-information display.
Crawl Control
: If equipped
Allows travel on extremely rough off-road surfaces at a fixed low
speed without pressing the accel erator or brake pedal. Mini-
mizes loss of traction or vehic le slip when driving on slippery
road surfaces, allowing for stable driving.
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2
3
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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

3194-5. 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 system.
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-terr ain 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. Refra in 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 cance led.
WARNING
■Before driving
To avoid an accident, observe the precautions relating to off-r oad driving.
( P. 333)
■ 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 ly.
● 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. 314) 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.