brake TOYOTA HILUX 2021 (in English) Workshop Manual

3154-5. Using the driving support systems
4
Driving
HILUX_OM_OM0K513E_(EE)
Q When the sensor may not be correctly detecting the vehicle ahead
In the case of the following and depending on the conditions, operate the
brake pedal when deceleration of the system is insufficient or operate the
accelerator pedal when acceleration is required.
As the sensor may not be able to correctly detect these types of vehicles, the
approach warning ( P. 310) may not be activated.
O Vehicles that cut in suddenly
O Vehicles traveling at low speeds
O Vehicles that are not moving in the same lane
O Vehicles with small rear ends (trailers with no load on board, etc.)
O Motorcycles traveling in the same lane
O When water or snow thrown up by the surrounding vehicles hinders the
detecting of the sensor
O When your vehicle is pointing upwards
(caused by a heavy load in the luggage
compartment, etc.)
O Preceding vehicle has an extremely high
ground clearance

3164-5. Using the driving support systems
HILUX_OM_OM0K513E_(EE)
Q Conditions under which the vehicle-to-vehicle distance control mode
may not function correctly
In the case of the following conditions, operate the brake pedal (or accelera-
tor pedal, depending on the situation) as necessary.
As the sensor may not be able to correctly detect vehicles ahead, the system
may not operate properly.
O When the vehicle ahead of you decelerates suddenly
O When driving on a road surrounded by a structure, such as in a tunnel or on
a bridge
O While the vehicle speed is decreasing to the set speed after the vehicle
accelerates by depressing the accelerator pedal
O When the road curves or when the lanes
are narrow
O When steering wheel operation or your
position in the lane is unstable

3184-5. Using the driving support systems
HILUX_OM_OM0K513E_(EE)
To change the set speed, operate the lever until the desired set speed
is obtained.
Increases the speed
Decreases the speed
Fine adjustment: Momentarily
move the lever in the desired direc-
tion.
Large adjustment: Hold the lever in
the desired direction.
The set speed will be increased or decreased as follows:
Fine adjustment: By approximately 1.0 km/h (0.6 mph) each time the lever
is operated.
Large adjustment: The set speed can be increased or decreased continu-
ally until the lever is released.
Pulling the lever toward you
cancels the constant speed
control.
The speed setting is also canceled
when the brakes are applied or the
clutch pedal (manual transmission
only) is depressed.
Pushing the lever up resumes
the constant speed control.
Resuming is available when the vehicle speed is more than approximately
30 km/h (20 mph).
Adjusting the set speed
1
2
Canceling and resuming the constant speed control
1
2

3264-5. Using the driving support systems
HILUX_OM_OM0K513E_(EE)
O The sensor is frozen. (Thawing the area will resolve this problem.)
In especially cold weather, if a sensor is frozen, the screen may show an
abnormal display, or objects may not be detected.
O The sensor is covered in any way.
O On an extremely bumpy road, on an incline, on gravel, or on grass
O When vehicle horns, vehicle detectors, motorcycle engines, air brakes of
large vehicles, the clearance sonar of ot her vehicles or other devices which
produce ultrasonic waves are near the vehicle.
O A sensor is coated with a sheet of spray or heavy rain.
O If objects draw too close to the sensor.
O When a pedestrian is wearing clothing that does not reflect ultrasonic waves
(ex. skirts with gathers or frills).
O When objects that are not perpendicular to the ground, not perpendicular to
the vehicle traveling direction, uneven, or waving are in the detection range.
O Strong wind is blowing.
O When driving in inclement weather such as fog, snow or a sandstorm.
O When an object that cannot be detected is between the vehicle and a
detected object.
O If an object such as a vehicle, motorcycle, bicycle or pedestrian cuts in front
of the vehicle or runs out from the side of the vehicle.
O If the orientation of a sensor has been changed due to a collision or other
impact.
O When equipment that may obstruct a sensor is installed, such as a towing
eyelet, bumper protector (an additional trim strip, etc.), bicycle carrier, or
snow plow.
O If the front of the vehicle is raised or lowered due to the carried load.
O If the vehicle cannot be driven in a stable manner, such as when the vehicle
has been in an accident or is malfunctioning.
O When tire chains, a compact spare tire or an emergency tire puncture repair
kit are used.
O When a sensor or the area around a
sensor is extremely hot or cold

3274-5. Using the driving support systems
4
Driving
HILUX_OM_OM0K513E_(EE)
Q Situations in which the system may operate even if there is no possibil-
ity of a collision
In some situations, such as the following, the system may operate even
though there is no possibility of a collision.
O When driving toward a banner, flag, low-hanging branch or boom barrier
(such as those used at railroad crossings, toll gates and parking lots).
O When there is a rut or hole in the surface of the road.
O When driving on a metal cover (grating), such as those used for drainage
ditches.
O When driving up or down a steep slope.
O If a sensor is hit by a large amount of water, such as when driving on a
flooded road.
O There is dirt, snow, water drops or ice on a sensor. (Cleaning the sensors
will resolve this problem.)
O A sensor is coated with a sheet of spray or heavy rain.
O When driving in inclement weather such as fog, snow or a sandstorm.
O When vehicle horns, vehicle detectors, motorcycle engines, air brakes of
large vehicles, the clearance sonar of ot her vehicles or other devices which
produce ultrasonic waves are near the vehicle.
O If the front of the vehicle is raised or lowered due to the carried load.
O If the orientation of a sensor has been changed due to a collision or other
impact.
O The vehicle is approaching a tall or curved curb.
O Driving close to columns (H-shaped steel beams, etc.) in multi-story parking
garages, construction sites, etc.
O When driving on a narrow road.
O When strong winds are blowing.

3444-5. Using the driving support systems
HILUX_OM_OM0K513E_(EE)
QLocking the rear differential
The following systems do not operate w hen the rear differential is locked.
It is normal operation for the ABS warning light, VSC OFF indicator (if
equipped) and “TRC OFF” indicator (if equipped) to be on or for “TRC turned
off” to be displayed on the multi-information display (if equipped) at this time.
•ABS
• Brake assist (if equipped)
• VSC (if equipped)
• TRC/A-TRC (if equipped)
• Trailer Sway Control (if equipped)
• Hill-start assist control (if equipped)
• Downhill assist control (if equipped)
Q Unlocking the rear differential
If the rear differential lock indicator still flashes even after unlocking the rear
differential, check the safety of the surrounding area and slightly turn the
steering wheel in either direction while the vehicle is in motion.
Q Automatic system cancelation of the rear differential lock system
The rear differential lock is also unlocked in any of the following situations:
O The front-wheel drive control switch is turned to H2 or H4 (4WD models)
O The engine switch is turned to the “ACC” or “LOCK” position (vehicles with-
out smart entry & start system) or A CCESSORY or off (vehicles with smart
entry & start system)
Q After unlocking the rear differential
Check that the indicator goes off.
WARNING
Q To avoid an accident
Failure to observe the following precautions may result in an accident.
O Do not use the rear differential lock system except when wheel spinning
occurs in a ditch or on a slippery or rugged surface. Large steering effort
and careful cornering control will be required.
O Do not lock the rear differential until the wheels have stopped spinning.
Otherwise, the vehicle may move in an unexpected direction when the dif-
ferential lock is engaged, resulting in an accident. This may also lead to
possible damage to rear differential lock component parts.
O Do not drive over 8 km/h (5 mph) when the differential is locked.
O Do not keep driving with the rear differential lock switch on.

345
4
4-5. Using the driving support systems
Driving
HILUX_OM_OM0K513E_(EE)
Stop & Star t system
QStopping the engine
Vehicles with automatic transmission
While driving with the D shift
position selected, depress
the brake pedal and stop the
vehicle. The engine will stop
automatically.
When the engine stops, the
Stop & Start indicator will illu-
minate.
Vehicles with manual transmission
Fully depress the clutch pedal and depress the brake pedal to
stop the vehicle.
Move the shift lever to N and
release the clutch pedal. The
engine will stop automati-
cally.
When the engine is stopped
by the Stop & Start system,
the Stop & Start indicator will
illuminate.
: If equipped
The Stop & Start system stops and starts the engine according
to brake pedal (vehicles with automatic transmission) or clutch
pedal (vehicles with manual transmission) or shift lever opera-
tion when the vehicle is stopped, such as at a stoplight, inter-
section, etc., in order to improve fuel economy and reduce noise
pollution caused by the engine idling.
Stop & Start system operation
1
N
2

3464-5. Using the driving support systems
HILUX_OM_OM0K513E_(EE)
QRestarting the engine
Vehicles with automatic transmission
Release the brake pedal. The engine will start automatically.
When the engine starts, the Stop & Start indicator will turn off.
Vehicles with manual transmission
With the shift lever in N, depress the clutch pedal. The engine will
start automatically.
When the engine starts, the Stop & Start indicator will turn off.
Press the Stop & Start cancel
switch to disable the Stop & Start
system.
The Stop & Start cancel indicator
will illuminate.
Pressing the switch again will
enable the Stop & Start system and
the Stop & Start cancel indicator
will turn off.
QAutomatic enabling of the Stop & Start system
If the Stop & Start system is disabled using the Stop & Start cancel
switch, it will be automatically re-enabled once the engine switch is
turned to the “LOCK” position*1 or off*2 and then the engine is
started.
*1: Vehicles without smart entry & start system
*2: Vehicles with smart entry & start system
Disabling the Stop & Start system

3474-5. Using the driving support systems
4
Driving
HILUX_OM_OM0K513E_(EE)
When the engine is stopped by the Stop & Start system when the
vehicle is on an incline, when the brake pedal is released, brake force
is temporarily maintained to prevent the vehicle from rolling back-
wards before the engine is restarted and drive force is generated.
When drive force is generated, the maintained brake force is automat-
ically canceled.
O This function operates on flat surfaces as well as steep inclines.
O Sound may be generated from the brake system, but this does not
indicate a malfunction.
O Brake pedal response may change and vibration may occur, but
this does not indicate a malfunction.
Q Points for use
O If the engine switch is pressed when the engine is stopped by the Stop &
Start system, the engine will not be able to be restarted by the automatic
engine start function. In this case, restart the engine using the normal
engine starting procedure. ( P. 220, 223)
O When the engine is being restarted by the Stop & Start system, the power
outlets may be temporarily unusable, but this does not indicate a malfunc-
tion.
O Installation and removal of electrical components and wireless devices may
affect the Stop & Start system. Contact any authorized Toyota retailer or
Toyota authorized repairer, or any reliable repairer for details.
O When stopping the vehicle for a longer period of time, turn the engine switch
to the “LOCK” position*1 or off*2 to stop the engine completely.
O When the engine is restarted by the Stop & Start system, the steering wheel
may temporarily feel heavy.
O 4WD models only: While driving in L4 mode, it is recommended that the
Stop & Start system be canceled because the system may not operate prop-
erly.
*1: Vehicles without smart entry & start system
*2: Vehicles with smart entry & start system
Hill-start assist control (vehicles with automatic transmission)

3484-5. Using the driving support systems
HILUX_OM_OM0K513E_(EE)
Q Operating conditions
O The Stop & Start system is operational when all of the following conditions
are met:
• The vehicle has been driven a certain amount of time.
• The brake pedal is being depressed firmly. (vehicles with automatic trans-
mission)
• The clutch pedal is not depressed. (vehicles with manual transmission)
• The D shift position is selected. (v ehicles with automatic transmission)
• The shift lever is in N. (vehicles with manual transmission)
• The driver’s seat belt is fastened.
• The driver’s door is closed.
• The selected driving mode is normal or Eco drive mode. (if equipped)
• The rear differential is not locked. (if equipped)
• is off. (vehicles without manual air conditioning system)
• The accelerator pedal is not being depressed. (vehicles with automatic
transmission)
• The engine is adequately warmed up.
• The outside temperature is -5°C (23°F) or higher.
• The hood is closed. ( P. 349)
O In the following situations, the engine may not be stopped by the Stop &
Start system. This is not a malfunction of the Stop & Start system.
• When the air conditioning system is being used.
• When the battery is undergoing a periodic recharge.
• When the battery is not sufficiently charged, such as if the vehicle has
been parked for a long time and the battery charge has decreased, the
electric load is large, the battery fluid temperature is excessively low or
the battery has deteriorated.
• When the brake booster vacuum is low.
• When the elapsed time since the engine was restarted is short.
• When the vehicle is stopped frequently, such as when in a traffic jam.
• When the engine coolant temperature or transmission fluid temperature
is extremely low or high.
• When the vehicle is stopped on a steep incline. (vehicles with automatic
transmission)
• When the steering wheel is being operated.
• When the vehicle is being driven in a high altitude area.
• When the battery fluid temperature is extremely low or high.
• For a while after the battery terminals have been disconnected and
reconnected.