Drive control TOYOTA HILUX 2023 Service Manual

3014-5. Using the driving support systems
4
Driving
HILUX_OM_OM0K789E_(EE)
WARNING
■Before using dynamic radar cruise control
● Driving safely is the sole responsibility of the driver. Do not rely solely on
the system, and drive safely by always paying careful attention to your sur-
roundings.
● The dynamic radar cruise control provides driving assistance to reduce the
driver’s burden. However, there are limitations to the assistance provided.
Read the following conditions carefully. Do not overly rely on this system
and always drive carefully.
• When the sensor may not be correctly detecting the vehicle ahead:
 P. 314
• Conditions under which the vehicle-to-vehicle distance control mode
may not function correctly: P. 315
● Set the speed appropriately depending on the speed limit, traffic flow, road
conditions, weather conditions, etc. The driver is responsible for checking
the set speed.
● Even when the system is functioning normally, the condition of the preced-
ing vehicle as detected by the system may differ from the condition
observed by the driver. Therefore, t he driver must always remain alert,
assess the danger of each situation and drive safely. Relying solely on this
system or assuming the system ensures safety while driving can lead to
an accident, resulting in death or serious injury.
● Switch the dynamic radar cruise control setting to off, using the “ON-OFF”
button when not in use.

3024-5. Using the driving support systems
HILUX_OM_OM0K789E_(EE)
WARNING
■Cautions regarding the driving assist systems
Observe the following precautions, as there are limitations to the assistance
provided by the system. Failure to do so may cause an accident resulting in
death or serious injury.
● Assisting the driver to measure following distance
The dynamic radar cruise control is only intended to help the driver in
determining the following distance between the driver’s own vehicle and a
designated vehicle traveling ahead. It is not a mechanism that allows care-
less or inattentive driving, and it is not a system that can assist the driver in
low-visibility conditions.
It is still necessary for driver to pay close attention to the vehicle’s sur-
roundings.
● Assisting the driver to judge proper following distance
The dynamic radar cruise control det ermines whether the following dis-
tance between the driver’s own vehicle and a designated vehicle traveling
ahead is within a set range. It is not capable of making any other type of
judgement. Therefore, it is absolutely necessary for the driver to remain
vigilant and to determine whether or not there is a possibility of danger in
any given situation.
● Assisting the driver to operate the vehicle
The dynamic radar cruise control does not include functions which will pre-
vent or avoid collisions with vehicles ahead of your vehicle. Therefore, if
there is ever any possibility of danger, the driver must take immediate and
direct control of the vehicle and act appropriately in order to ensure the
safety of all involved.

3094-5. Using the driving support systems
4
Driving
HILUX_OM_OM0K789E_(EE)
Pulling the lever toward you
cancels the speed control.
The speed control is also canceled
when the brake pedal is
depressed.
Pushing the lever up resumes
the cruise control and returns
vehicle speed to the set speed.
However, cruise control does not resume when the vehicle speed is
approximately 25 km/h (16 mph) or less.
When your vehicle is too close to
a vehicle ahead, and sufficient
automatic deceleration via the
cruise control is not possible, the
display will flash and the buzzer
will sound to alert the driver. An
example of this would be if
another driver cuts in front of you
while you are following a vehicle.
Depress the brake pedal to
ensure an appropriate vehicle-to-
vehicle distance.
■Warnings may not occur when
In the following instances, warnings may not occur even when the
vehicle-to-vehicle distance is small.
● When the speed of the preceding vehicle matches or exceeds
your vehicle speed
● When the preceding vehicle is traveling at an extremely slow
speed
● Immediately after the cruise control speed was set
● When depressing the accelerator pedal
Canceling and resuming the speed control
1
2
Approach warning (vehicle-to-vehicle distance control mode)

3114-5. Using the driving support systems
4
Driving
HILUX_OM_OM0K789E_(EE)
When this function is enabled and the system is operating in vehicle-
to-vehicle distance control mode ( P. 304), when a speed limit sign is
detected, the recognized speed limit will be displayed with an up/
down arrow. The set speed can be increased/reduced to the recog-
nized speed limit by pushing the lever up or down.
● When the current set speed is
lower than the recognized
speed limit
Push the lever up
● When the current set speed is
higher than the recognized
speed limit
Push the lever down
Dynamic Radar Cruise Control with Road Sign Assist can be enabled/
disabled in on the multi-information display. ( P. 133)
When the Dynamic Radar Cruise Control with Road Sign Assist is
operating, while driving down a hill, the vehicle speed may exceed the
set speed.
In this case, the displayed set vehicle speed will be highlighted and a
buzzer will sound to alert the driver.
Dynamic Radar Cruise Control with Road Sign Assist
Enabling/Disabling the Dynamic Radar Cruise Control with Road
Sign Assist

3124-5. Using the driving support systems
HILUX_OM_OM0K789E_(EE)
■Dynamic radar cruise control can be set when
● The shift lever is in D. (Vehicles with automatic transmission)
● The shift lever is in range 2nd or higher. (Vehicles with manual transmission)
● Depending on the control mode, this item can be set at the following
speeds.
• Vehicle-to-vehicle distance control mode: Approximately 30 km/h (20
mph) or more
• Constant speed control mode: Approximately 30 km/h (20 mph) or more
■ Accelerating after setting the vehicle speed
The vehicle can accelerate by operating the accelerator pedal. After acceler-
ating, the set speed resumes. However, during vehicle-to-vehicle distance
control mode, the vehicle speed may decrease below the set speed in order
to maintain the distance to the preceding vehicle.
■ Shift position selection (vehicles with manual transmission)
Select a shift position according to the vehicle speed. If the engine speed is
too high or too low, control may be automatically canceled.
■ Automatic cancelation of vehicle-to-vehicle distance control mode
Vehicle-to-vehicle distance control mode is automatically canceled in the fol-
lowing situations.
● Actual vehicle speed falls below approximately 25 km/h (16 mph).
● VSC is activated.
● TRC/A-TRC is activated for a period of time.
● When the VSC or TRC/A-TRC system is turned off.
● The sensor cannot detect correctly because it is covered in some way.
● When the brake control or output restriction control of a driving support sys-
tem operates. (For example: Pre-Coll ision System, Drive-Start Control)
● When the shift lever is in N or the clutch pedal is depressed for a certain
amount of time or more. (Vehicles with manual transmission)
● 4WD models: Switching the transfer mode is not completed within 5 sec-
onds while the cruise control system is on.
If vehicle-to-vehicle distance control mode is automatically canceled for any
reasons other than the above, there may be a malfunction in the system.
Contact any authorized Toyota retailer or Toyota authorized repairer, or any
reliable repairer.

3134-5. Using the driving support systems
4
Driving
HILUX_OM_OM0K789E_(EE)
■ Automatic cancelation of constant speed control mode
Constant speed control mode is automatically canceled in the following situa-
tions:
● Actual vehicle speed is more than approximately 16 km/h (10 mph) below
the set vehicle speed.
● Actual vehicle speed falls below approximately 30 km/h (20 mph).
● VSC is activated.
● TRC/A-TRC is activated for a period of time.
● When the VSC or TRC/A-TRC system is turned off.
● When the brake control or output restriction control of a driving support sys-
tem operates. (For example: Pre-Coll ision System, Drive-Start Control)
● When the shift lever is in N or the clutch pedal is depressed for a certain
amount of time or more. (Vehicles with manual transmission)
● 4WD models: Switching the transfer mode is not completed within 5 sec-
onds while the cruise control system is on.
If constant speed control mode is automatically canceled for any reasons
other than the above, there may be a malfunction in the system. Contact any
authorized Toyota retailer or Toyota authorized repairer, or any reliable
repairer.
■ The Dynamic Radar Cruise Control with Road Sign Assist may not oper-
ate properly when
As the Dynamic Radar Cruise Control with Road Sign Assist may not oper-
ate properly in conditions in which RSA may not operate or detect correctly
( P. 298), when using this function, make sure to check the speed limit
sign displayed.
In the following situations, the set speed may not be changed to the recog-
nized speed limit by pushing the lever up or down.
● If speed limit information is not available
● When the recognized speed limit is the same as the set speed
● When the recognized speed limit is outside of the speed range that the
dynamic radar cruise control system can operate
■ Brake operation
A brake operation sound may be heard and the brake pedal response may
change, but these are not malfunctions.
■ Warning messages and buzzers for dynamic radar cruise control
Warning messages and buzzers are used to indicate a system malfunction or
to inform the driver of the need for caution while driving. If a warning message
is shown on the multi-information display, read the message and follow the
instructions. ( P. 270, 575)

3284-5. Using the driving support systems
HILUX_OM_OM0K789E_(EE)
WARNING
■Cautions regarding the use of the system
There is a limit to the degree of recognition accuracy and control perfor-
mance that this system can provide, do not overly rely on this system. The
driver is always responsible for paying attention to the vehicle’s surround-
ings and driving safely.
■ To ensure the system can operate properly
Observe the following precautions.
Failure to do so may result in the vehicle being unable to be driven safely
and possibly cause an accident.
● Do not damage the sensors, and always keep them clean.
● Do not attach a sticker or install an electronic component, such as a backlit
license plate (especially fluorescent type), fog lights, fender pole or wire-
less antenna near a radar sensor.
● Do not subject the surrounding area of the sensor to a strong impact. If
subjected to an impact, have the vehicle inspected by any authorized
Toyota retailer or Toyota authorized repai rer, or any reliable repairer. If the
front or rear bumper needs to be removed/installed or replaced, contact
any authorized Toyota retailer or Toyota authorized repairer, or any reliable
repairer.
● Do not modify, disassemble or paint the sensors.
● Do not attach a license plate cover.
● Keep your tires properly inflated.
■ When to disable the function
In the following situations, disable the function as it may operate even
though there is no possibility of a collision.
● Failing to observe the warnings above.
● A non-genuine Toyota suspension (lowered suspension, etc.) is installed.
■ Notes when washing the vehicle
Do not apply intensive bursts of water or steam to the sensor area.
Doing so may result in the sensor malfunctioning.
● When using a high pressure washer to wash the vehicle, do not spray the
sensors directly, as doing so may cause a sensor to malfunction.
● When using steam to clean the vehicle, do not direct steam too close to
the sensors as doing so may cause a sensor to malfunction.

3304-5. Using the driving support systems
HILUX_OM_OM0K789E_(EE)
Four-wheel drive system
H2 (high speed position, two-
wheel drive)
Use this for normal driving on dry
hard-surfaced roads. This position
gives greater economy, quietest
ride and least wear.
H4 (high speed position, four-
wheel drive)
Use this for driving only on tracks
that permit the tires slide, like off-
road, icy or snow-covered roads.
This position provides greater trac-
tion than two-wheel drive.
The four-wheel drive indicator
light comes on
L4 (low speed position, four-
wheel drive)
Use this for maximum power and traction. Use L4 for climbing or descend-
ing steep hills, off-road driving, and hard pulling in sand, mud or deep
snow.
The four-wheel drive and low speed four-wheel drive indicator lights
come on
The A.D.D. can be engaged or disengaged by the shifting operations
described in the following shifting procedures.
: If equipped
Use the front-wheel drive control switch to select the following
transfer modes.
1
2
3
A.D.D. (automatic disconnecting differential) (if equipped)

3314-5. Using the driving support systems
4
Driving
HILUX_OM_OM0K789E_(EE)
■Shifting from H2 to H4
Reduce the vehicle speed to
less than 100 km/h (62 mph).
The transfer mode cannot be
switched if the vehicle speed is
more than 100 km/h (62 mph).
Turn the front-wheel drive
control switch to H4.
The four-wheel drive indicator
light flashes while switching.
If turning the front-wheel drive
control switch when the vehicle
speed is more than 100 km/h
(62 mph), the four-wheel drive
indicator light flashes and a
buzzer sounds.
Reduce the vehicle speed to less than 100 km/h (62 mph), or return the
front-wheel drive control switch to H2 and try step again.
Check that the four-wheel
drive indicator light comes on.
The four-wheel drive indicator
light comes on when switching
the transfer mode is completed.
If the four-wheel drive indicator
light does not stop flashing after
turning the front-wheel drive
control switch from H2 to H4,
perform any of the followings
while driving straight.
• Accelerating
• Decelerating
• Driving in reverse
The four-wheel drive indicator light may not stop flashing if the front-
wheel drive control switch is turned from H2 to H4 while the vehicle is
stopped. In this case, perform any of the followings.
• Driving forward
• Driving in reverse
Shifting between H2 and H4
100 km/h (62 mph)
1
(Flashes)
2
1
(Comes on)
3

3324-5. Using the driving support systems
HILUX_OM_OM0K789E_(EE)
■Shifting from H4 to H2
Turn the front-wheel drive
control switch to H2.
The four-wheel drive indicator
light flashes while switching.
Check that the four-wheel
drive indicator light goes off.
The four-wheel drive indicator
light goes off when switching the
transfer mode is completed.
If the four-wheel drive indicator
light does not stop flashing after
turning the front-wheel drive
control switch from H4 to H2,
perform the followings while
driving straight.
• Accelerating
• Decelerating
• Driving in reverse
If the four-wheel drive indicator light is still flashing, perform the opera-
tions above while turning the steering wheel left and right.
Impact may be felt through the vehicle body and steering. However, this
does not indicate a malfunction.
(Flashes)
1
(Goes off)
2