Toyota Highlander (2022 year). Manual in english — page 19
303
4-5. Using the driving support systems
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If the Parking Support Brake determines that a collision with a
detected object is possible, the engine output will be restricted to
restrain any increase in the vehicle speed. (Engine output restriction
control: See figure 2.)
Additionally, if the accelerator pedal continues to be depressed, the
brakes will be applied automatically to reduce the vehicle speed.
(Brake control: See figure 3.)
Figure 1 When the PKSB (Parking Support Brake) is disabled
Engine output
Braking force
Time
Figure 2 When engine output restriction control operates
System overview
304
4-5. Using the driving support systems
Engine output
Braking force
Time
Engine output restriction control begins operating
System determines that possibility of collision with detected
object is high
Engine output reduced
Example: Multi-information display: “BRAKE!”
Figure 3 When brake control operates
Engine output
Braking force
Time
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4-5. Using the driving support systems
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Engine output restriction control begins operating
System determines that possibility of collision with detected
object is high
Engine output reduced
System determines that possibility of collision with detected
object is extremely high
Brake control begins operating
Brake control strength increased
Example: Multi-information display: “BRAKE!”
Example: Multi-information display: “Switch to Brake”
■
If the Parking Support Brake
has operated
If the vehicle is stopped due to oper-
ation of the Parking Support Brake,
the Parking Support Brake will be
disabled and the PKSB OFF indica-
tor will illuminate. If the Parking Sup-
port Brake operates unnecessarily,
brake control can be canceled by
depressing the brake pedal or wait-
ing for approximately 2 seconds for
it to automatically be canceled.
Then, the vehicle can be operated
by depressing the accelerator pedal.
■
Re-enabling the Parking Sup-
port Brake
To re-enable the Parking Support
Brake when it has been disabled
due to system operation perform
any of the following operations.
At this time, the PKSB OFF indicator
will turn off. (
●
Turn the PKSB (Parking Support
Brake) on (
●
The shift lever is in P.
●
Drive with no operation targets in
the traveling direction of the vehi-
cle
●
Change the traveling direction of
the vehicle
■
If “PKSB Unavailable” is dis-
played on the multi-information
display and the PKSB OFF indi-
cator is flashing
●
If this message is displayed only
when the shift lever is in any posi-
tion other than R, a sensor on the
front or rear bumper may be dirty.
Clean the sensors and their sur-
rounding area on the bumpers.
■
If “PKSB Unavailable” and
“Parking Support Brake
Unavailable Remove the Dirt of
Rear Camera” is displayed on
the multi-information display
and the PKSB OFF indicator is
flashing
●
A sensor may be covered with ice,
snow, dirt, etc. Remove the ice,
snow, dirt, etc., from the sensor to
return the system to normal.
If this message is shown even
after removing dirt from the sen-
sor, or shown when the sensor
was not dirty to begin with, have
the vehicle inspected by your Toy-
ota dealer.
●
A sensor may be frozen. Once the
ice melts, the system will return to
normal.
●
Water may be continuously flow-
ing over the sensor surface, such
as in a heavy rain. When the sys-
tem determines that it is normal,
the system will return to normal.
306
4-5. Using the driving support systems
■
If a battery terminal has been
disconnected and reconnected
The system needs to be initialized.
To initialize the system, drive the
vehicle straight ahead for 5 seconds
or more at a speed of approximately
22 mph (35 km/h) or more.
307
4-5. Using the driving support systems
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*
: If equipped
This function will operate in situations such as the following if an
object is detected in the traveling direction of the vehicle.
■
When traveling at a low speed and the brake pedal is not
depressed, or is depressed late
Parking Support Brake function (static objects)
*
If the sensors detect a static object, such as a wall, in the trav-
elling direction of the vehicle and the system determines that
a collision may occur due to the vehicle suddenly moving for-
ward due to an accidental accelerator pedal operation, the
vehicle moving the unintended direction due to the wrong
shift lever position, or while parking or traveling at low
speeds, the system will operate to lessen the impact with the
detected static object and reduce the resulting damage.
Examples of function operation
308
4-5. Using the driving support systems
■
When the accelerator pedal is depressed excessively
■
When the vehicle moves in the unintended direction due to
the wrong shift lever position
Front corner sensors
Front center sensors
Rear corner sensors
Rear center sensors
Types of sensors
WARNING
■
To ensure the system can
operate properly
309
4-5. Using the driving support systems
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■
The Parking Support Brake
function (static object) will
operate when
The function will operate when the
PKSB OFF indicator is not illumi-
nated or flashing (
P.77, 78) and all
of the following conditions are met:
●
Engine output restriction control
• The Parking Support Brake is
enabled.
• The vehicle speed is approxi-
mately 9 mph (15 km/h) or less.
• There is a static object in the trav-
eling direction of the vehicle and
approximately 6 to 13 ft. (2 to 4 m)
away.
• The Parking Support Brake deter-
mines that a stronger-than-nor-
mal brake operation is necessary
to avoid a collision.
●
Brake control
• Engine output restriction control is
operating.
• The Parking Support Brake deter-
mines that an immediate brake
operation is necessary to avoid a
collision.
■
The Parking Support Brake
function (static objects) will
stop operating when
The function will stop operating if
any of the following conditions are
met:
●
Engine output restriction control
• The Parking Support Brake is dis-
abled.
• The system determines that the
collision has become avoidable
with normal brake operation.
• The static object is no longer
approximately 6 to 13 ft. (2 to 4 m)
away from the vehicle or in the
traveling direction of the vehicle.
●
Brake control
• The Parking Support Brake is dis-
abled.
• Approximately 2 seconds have
elapsed since the vehicle was
stopped by brake control.
• The brake pedal is depressed
after the vehicle is stopped by
brake control.
• The static object is no longer
approximately 6 to 13 ft. (2 to 4 m)
away from the vehicle or in the
traveling direction of the vehicle.
■
Detection range of the Parking
Support Brake function (static
objects)
The detection range of the Parking
Support Brake function (static
objects) differs from the detection
range of the intuitive parking assist.
(
P.290) Therefore, even if the intu-
itive parking assist detects an object
and provides a warning, the Parking
Support Brake function (static
objects) may not start operating.
■
Situations in which the system
may not operate properly
■
Situations in which the system
may operate even if there is no
possibility of a collision
WARNING
■
If the Parking Support Brake
function (static objects) oper-
ates unnecessarily, such as
at a railroad crossing
■
Notes when washing the vehi-
cle
310
4-5. Using the driving support systems
*
: If equipped
This function will operate in situ-
ation such as the following if a
vehicle is detected in the travel-
ing direction of the vehicle.
■
When reversing, a vehicle is
approaching and the brake
pedal is not depressed, or
is depressed late
■
The Parking Support Brake
function (rear-crossing vehi-
cles) will operate when
The function will operate when the
PKSB OFF indicator is not illumi-
nated or flashing (
P.77, 78) and all
of the following conditions are met:
●
Engine output restriction control
• The Parking Support Brake is
enabled.
• The vehicle speed is approxi-
mately 9 mph (15 km/h) or less.
• Vehicles which are approaching
from the right or left at the rear of
the vehicle at a traveling speed of
approximately 5 mph (8 km/h) or
more.
• The shift lever is in R.
• The Parking Support Brake deter-
mines that a stronger than normal
brake operation is necessary to
avoid a collision with an approach-
ing vehicle.
●
Brake control
• Engine output restriction control is
operating.
• The Parking Support Brake deter-
mines that an emergency brake
operation is necessary to avoid a
collision with an approaching vehi-
cle.
Parking Support Brake function (rear-crossing
vehicles)
*
If a rear radar sensor detects a vehicle approaching from the
right or left at the rear of the vehicle and the system deter-
mines that the possibility of a collision is high, this function
will perform brake control to reduce the likelihood of an
impact with the approaching vehicle.
Example of function operation
Types of sensors
WARNING
■
To ensure the system can
operate properly
311
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■
The Parking Support Brake
function (rear-crossing vehi-
cles) will stop operating when
The function will stop operating if
any of the following conditions are
met:
●
Engine output restriction control
• The Parking Support Brake is dis-
abled.
• The collision becomes avoidable
with normal brake operation.
• A vehicle is no longer approaching
from the right or left at the rear of
the vehicle.
●
Brake control
• The Parking Support Brake is dis-
abled.
• Approximately 2 seconds have
elapsed since the vehicle was
stopped by brake control.
• The brake pedal is depressed
after the vehicle is stopped by
brake control.
• A vehicle is no longer approaching
from the right or left at the rear of
the vehicle.
■
Detection area of the Parking
Support Brake function
(rear-crossing vehicles)
The detection area of the Parking
Support Brake function (rear-cross-
ing vehicles) differs from the detec-
tion area of the RCTA function
(
P.296). Therefore, even if the
RCTA function detects a vehicle and
provides an alert, the Parking Sup-
port Brake function (rear-crossing
vehicles) may not start operating.
■
Situations in which the system
may not operate properly
■
Situations in which the system
may operate even if there is no
possibility of a collision
Multi-information display
Driving mode select switch
Operate the driving mode select
switch forward or backward to
select the desired driving mode on
the multi-information display.
1
Normal mode
Provides an optimal balance of fuel
economy, quietness, and dynamic
performance. Suitable for normal
driving.
2
Sport mode
Controls the transmission and
engine to provide quick, powerful
acceleration. This mode also
changes the steering feel, making it
suitable for when agile driving
response is desired, such as when
Driving mode select
switch
The driving modes can be
selected to suit the driving
and usage conditions.
Selecting a driving mode
312
4-5. Using the driving support systems
driving on roads with many curves.
When Sport mode is selected,
Sport mode indicator comes on.
3
Eco drive mode
Helps the driver accelerate in an
eco-friendly manner and improve
fuel economy through moderate
throttle characteristics and by con-
trolling the operation of the air con-
ditioning system (heating/cooling).
When Eco drive mode is selected,
Eco drive mode indicator comes
on.
■
When changing to a driving
mode other than normal mode
Switches to AWD control suitable for
the selected mode. (for Dynamic
Torque Vectoring AWD vehicles
only)
■
Air conditioning system opera-
tion in Eco drive mode
In Eco drive mode, heating/cooling
operations and the fan speed is con-
trolled to improve fuel efficiency.
Perform the following procedures to
increase the air conditioning perfor-
mance.
●
Vehicle with a 12.3-inch display:
Turn eco air conditioning mode off
(
●
Adjust the fan speed (
●
Cancel Eco drive mode
■
Canceling a driving mode
●
Sport mode is automatically can-
celed and the driving mode
returns to normal mode when the
engine switch is turned off.
●
Normal mode and Eco drive mode
are not canceled until another
driving mode is selected. (Even if
the engine switch is turned off,
normal mode and Eco drive mode
will not be automatically can-
celed.)
Multi-terrain Select
(AWD models)
Multi-terrain Select is a sys-
tem that improves drivabil-
ity in off-road situations.
When driving over muddy,
sandy or rough road sur-
faces, the system selects a
suitable driving mode to
switch AWD, brake and
drive force control to per-
form control suitable for the
road condition.
WARNING
■
Before using Multi-terrain
Select
Make sure to observe the follow-
ing precautions. Failure to
observe these precautions may
result in an unexpected accident.
●
Check that the Mud & Sand and
Rock & Dirt indicators are illumi-
nated before driving. Multi-ter-
rain Select will not operate
when the indicators are off.
●
Do not rely solely upon the
Multi-terrain Select. This func-
tion is not intended to expand
the limits of the vehicle. If the
system is continuously used for
a long period of time, the load
on related parts increases and
the system may be unable to
operate normally, which may
lead to an accident. Thoroughly
check the road conditions and
driving route before driving, and
drive with caution.
313
4-5. Using the driving support systems
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Control that is suitable for the
following road conditions can be
performed by switching to either
of the two modes. Select a
mode that is appropriate for the
road condition.
■
Mud & Sand mode
Suitable for driving on roads
with increased driving resis-
tance such as sandy roads,
muddy roads, etc.
■
Rock & Dirt mode
Suitable for driving in bumpy
road conditions, such as on
unpaved forest roads.
■
Dynamic Torque Control
AWD vehicles
1
Mud & Sand mode
When the switch is pressed while
not in Mud & Sand mode, the sys-
tem switches to Mud & Sand mode
and the Mud & Sand mode indica-
tor, VSC OFF indicator and PCS
warning light illuminate on the
multi-information display.
2
Normal mode
Mode that performs AWD, brake
and drive force control suitable for
driving on general roads. Use nor-
mal mode when not driving
off-road.
The driving mode returns to normal
mode if the switch is pressed while
in Mud & Sand mode or Rock & Dirt
mode.
3
Rock & Dirt mode
When the switch is pressed while
not in Rock & Dirt mode, the sys-
tem switches to Rock & Dirt mode
and the Rock & Dirt mode indicator
illuminates on the multi-information
display.
WARNING
●
The road conditions listed
(Guidelines for selecting each
mode:
P.313) are for reference
only. There is a chance that the
function may not be the most
appropriate in terms of road
conditions such as pitch, slip-
periness, undulation, etc. Thor-
oughly check the road
conditions before driving.
Guidelines for selecting
each mode
Changing the mode
314
4-5. Using the driving support systems
■
Dynamic Torque Vectoring
AWD vehicles
1
Mud & Sand mode
When the switch is turned to the left
while not in Mud & Sand mode, the
system switches to Mud & Sand
mode and the Mud & Sand mode
indicator, VSC OFF indicator and
PCS warning light illuminate on the
multi-information display.
2
Normal mode
Mode that performs AWD, brake
and drive force control suitable for
driving on general roads. Use nor-
mal mode when not driving
off-road.
The driving mode returns to normal
mode if the switch is pressed while
in Mud & Sand mode or Rock & Dirt
mode.
3
Rock & Dirt mode
When the switch is turned to the
right while not in Rock & Dirt mode,
the system switches to Rock & Dirt
mode and the Rock & Dirt mode
indicator illuminates on the
multi-information display.
■
Multi-terrain Select
●
Multi-terrain Select is intended for
use when driving on rough roads.
Drive in normal mode during nor-
mal driving.
●
The Mud & Sand and Rock & Dirt
modes control the vehicle so that
it can maximize the drive force
and improve drivability on rough
roads. As a result, fuel efficiency
may diminish when compared to
driving in normal mode.
■
If Mud & Sand or Rock & Dirt
mode is selected
●
The background of the multi-infor-
mation display will change follow-
ing the Multi-terrain Select mode.
●
The AWD operation status display
will automatically switch on the
multi-information display.
■
AWD control for Mud & Sand
and Rock & Dirt modes
If the vehicle speed exceeds the
speeds listed below, AWD control is
performed similar to that performed
in Normal mode, even if Mud &
Sand or Rock & Dirt mode is
selected.
●
Mud & Sand mode: Vehicle speed
is approximately 25 mph (40
km/h) or more
●
Rock & Dirt mode: Vehicle speed
is approximately 16 mph (25
km/h) or more
If the vehicle speed drops below the
above speeds, the system automati-
cally switches to the AWD control
suitable for each mode.
■
When Multi-terrain Select brake
control temporarily stops oper-
ating
If Mud & Sand or Rock & Dirt mode
is continuously used for a long
period of time, the brakes may over-
heat, and Multi-terrain Select brake
control may temporarily stop operat-
ing.
●
At this time, the buzzer sounds
intermittently and “Traction Con-
trol Turned OFF” is displayed on
the multi-information display.
●
If Multi-terrain Select brake control
stops operating, stop the vehicle
in a safe location as soon as pos-
sible
*
and wait until the system
315
4-5. Using the driving support systems
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temperature decreases. Once the
display message on the
multi-information display turns off,
the brake control returns to nor-
mal. Note that normal driving is
still possible even when Multi-ter-
rain Select brake control is not
operating.
*
: After stopping the vehicle, do not
stop the engine until the display
message has turned off.
■
When Mud & Sand or Rock &
Dirt mode is canceled
In the following situations, Mud &
Sand mode or Rock & Dirt mode are
automatically canceled even if they
are selected.
●
When the driving mode is
changed (
●
When the engine switch is turned
off
■
Driving in Mud & Sand or Rock
& Dirt mode
The following types of situations
may occur, but they are not malfunc-
tions.
●
Vibrations may be felt throughout
the vehicle or steering wheel
●
Operating noise may be heard
from the engine compartment
■
When an inspection at your
Toyota dealer is necessary
In the following situations, the sys-
tem may be malfunctioning. Have
the vehicle inspected by your Toyota
dealer immediately.
●
When the slip indicator light illumi-
nates while Mud & Sand or Rock
& Dirt mode is selected
●
When the indicator for each mode
does not illuminate even though
Mud & Sand or Rock & Dirt mode
is selected
Press the snow mode switch.
When the switch is pressed, the
system switches to snow mode and
the snow mode indicator illuminates
on the multi-information display.
When the switch is pressed again,
the snow mode indicator turns off.
■
When changing to snow mode
The background of the multi-infor-
mation display changes.
■
Canceling the snow mode
Snow mode is automatically can-
celed when the engine switch is
turned OFF or Mud & Sand or Rock
& Dirt mode is selected for Multi-ter-
rain Select.
Snow mode switch
Snow mode can be selected
to suit the conditions when
driving on slippery road sur-
faces, such as on snow.
System operation
316
4-5. Using the driving support systems
*
: If equipped
Press the downhill assist control
switch.
The downhill assist control system
indicator will comes on and the sys-
tem 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 downhill assist control
switch while the system is in
operation.
The downhill assist control system
indicator will flash as the system
gradually ceases operation, and will
turn off when the system is fully off.
Press the downhill assist control
switch while the downhill assist
control system indicator is flashing
to start the system again.
■
Operating tips
The system will operate when the
shift lever is in a position other than
P, however to make effective use of
the system it is recommended to
select a lower shift range.
■
If the downhill assist control
system indicator flashes
●
In the following situations, the indi-
cator flashes and the system will
not operate:
• The shift lever is in a position P.
• The vehicle speed exceeds
approximately 18 mph (30 km/h).
• The brake system overheats.
●
In the following situation, the indi-
cator flashes to alert the driver,
but the system will operate:
• The downhill assist control switch
is turned off while the system is
operating.
The system will gradually ceases
Downhill assist con-
trol system
*
The downhill assist control
system helps to prevent
excessive speed on steep
downhill slopes.
The system will operate
when the vehicle is traveling
under 18 mph (30 km/h).
WARNING
■
When using downhill assist
control system
Do not rely overmuch on the
downhill assist control system.
This function does not extend the
vehicle’s performance limitations.
Always thoroughly check the road
conditions, and drive safely.
System operation
Turning off the system
317
4-5. Using the driving support systems
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operation. The indicator will flash
during operation, and then go off
when the system is fully off.
■
When the downhill assist con-
trol system is operated continu-
ously
This may cause the brake actuator
to overheat. In this case, the down-
hill assist control system will stop
operating, a buzzer will sound and
the downhill assist control system
indicator will start flashing, and
“Traction Control Turned OFF” will
be shown on the multi-information
display. Refrain from using the sys-
tem until the downhill assist control
system indicator stays on and the
message goes off. (The vehicle can
be driven normally during this time.)
■
Sounds and vibrations caused
by the downhill assist control
system
●
A sound may be heard from the
engine compartment when the
engine is started or just after the
vehicle begins to move. This
sound does not indicate that a
malfunction has occurred in down-
hill assist control system.
●
Either of the following conditions
may occur when the downhill
assist control system is operating.
None of these are indicators 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.
■
System malfunction
In the following cases, have your
vehicle checked by your Toyota
dealer.
●
The downhill assist control system
indicator does not come on when
the engine switch is turned to ON.
●
The downhill assist control system
indicator does not come on when
the downhill assist control switch
is pressed.
●
The slip indicator comes on.
WARNING
■
The system may not operate
on the following surfaces,
which may lead to an acci-
dent causing death or serious
injury
●
Slippery surfaces such as wet
or muddy roads
●
Icy surface
●
Unpaved roads
318
4-5. Using the driving support systems
■
ABS (Anti-lock Brake Sys-
tem)
Helps to prevent wheel lock
when the brakes are applied
suddenly, or if the brakes are
applied while driving on a slip-
pery road surface
■
Brake assist
Generates an increased level of
braking force after the brake
pedal is depressed when the
system detects a panic stop sit-
uation
■
VSC (Vehicle Stability Con-
trol)
Helps the driver to control skid-
ding when swerving suddenly or
turning on slippery road sur-
faces
■
Enhanced VSC (Enhanced
Vehicle Stability Control)
Provides cooperative control of
the ABS, TRAC, VSC and EPS.
Helps to maintain directional
stability when swerving on slip-
pery road surfaces by con-
trolling steering performance.
■
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
vehicle or accelerating on slip-
pery roads
■
Active Cornering Assist
(ACA)
Helps to prevent the vehicle
from drifting to the outer side by
performing inner wheel brake
control when attempting to
accelerate while turning
■
Hill-start assist control
Helps to reduce the backward
movement of the vehicle when
starting on an uphill
■
EPS (Electric Power Steer-
ing)
Employs an electric motor to
reduce the amount of effort
needed to turn the steering
Driving assist systems
To keep driving safety and
performance, the following
systems operate automati-
cally in response to various
driving situations. Be
aware, however, that these
systems are supplementary
and should not be relied
upon too heavily when oper-
ating the vehicle.
Summary of the driving
assist systems
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