Lexus UX (2022 year). Manual in english — page 14
248
4-5. Using the driving support systems
O
When the system determines that the
driver is driving without holding the steer-
ing wheel while the system is operating
If the driver continues to keep their hands
off of the steering wheel, the buzzer sounds,
the driver is warned and the function is tem-
porarily canceled. This warning also oper-
ates in the same way when the driver
continuously operates the steering wheel
only a small amount. The buzzer also
sounds even if the alert type is set to Steer-
ing wheel vibration.
O
When the system determines that the
vehicle may deviate from the lane while
driving around a curve while the lane
centering function is operating.
Depending on the vehicle condition and
road conditions, the warning may not oper-
ate. Also, if the system determines that the
vehicle is driving around a curve, warnings
will occur earlier than during straight-lane
driving.
O
When the system determines that the
driver is driving without holding the steer-
ing wheel while the steering wheel assist
of the steering assist function is operat-
ing.
If the driver continues to keep their hands
off of the steering wheel and the steering
wheel assist is operating, the buzzer sounds
and the driver is warned. Each time the
buzzer sounds, the continuing time of the
buzzer becomes longer.
The buzzer also sounds even if the alert
type is set to Steering wheel vibration.
Q
Vehicle sway warning function
When the system determines that the vehi-
cle is swaying while the vehicle sway warn-
ing function is operating, a buzzer sounds
and a warning message urging the driver to
rest and the symbol shown in the illustration
are simultaneously displayed on the multi-
information display.
Depending on the vehicle and road condi-
tions, the warning may not operate.
Q
Warning message
If the following warning message is dis-
played on the multi-information display and
the LTA indicator illuminates in orange, fol-
low the appropriate troubleshooting proce-
dure. Also, if a different warning message is
displayed, follow the instructions displayed
on the screen.
O
“LTA Unavailable”
The system is temporarily canceled due to a
malfunction in a sensor other than the front
camera. Turn the LTA system off, wait for a
little while, and then turn the LTA system
back on.
O
“LTA Unavailable at Current Speed”
The function cannot be used as the vehicle
speed exceeds the LTA operation range.
Drive slower.
Q
Customization
Function settings can be changed.
(Customizable features:
P.484)
249
4
4-5. Using the driving support systems
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*
: If equipped
When the front camera recognizes a
sign and/or information of a sign is
available from the navigation system,
the sign will be displayed on the multi-
information display.
When the driving support system
information display is selected, a
maximum of 3 signs can be dis-
played. (
P.108)
When a tab other than the driving
support system information display
is selected, the following types of
road signs will be displayed.
(
P.108)
• Speed limit begins/ends sign
• Speed limit related information sign
(Motorway, Expressway, Urban area,
Residential area)
• End of prohibition sign
• No-entry sign
*
(when notification is nec-
essary)
• Speed limit with supplemental sign
(Ramp way only)
*
: For vehicles with navigation system
RSA (Road Sign Assist)
*
The RSA system recognizes spe-
cific road signs using the front cam-
era and/or navigation system
(when speed limit information is
available) to provide information to
the driver via the display.
If the system judges that the vehicle
is being driven over the speed limit,
performing prohibited actions, etc.
according to the recognized road
signs, it notifies the driver through a
visual notification and notification
buzzer or steering wheel vibration.
WARNING
Q
Before using the RSA
Do not rely solely upon the RSA system.
RSA is a system which supports the
driver by providing information, but it is
not a replacement for a driver’s own
vision and awareness. Drive safely by
always paying careful attention to the
traffic rules.
Indication on the multi-informa-
tion display
250
4-5. Using the driving support systems
If signs other than speed limit signs are rec-
ognized, they will be displayed in an over-
lapping stack under the current speed limit
sign.
The following types of road signs,
including electronic signs and blinking
signs, are displayed.
A non-official (not meeting the Vienna
Convention) or a recently introduced traf-
fic sign may not be displayed.
Speed limit road signs
*
: Speed limit begins/Maximum
speed zone begins
: Speed limit ends/Maximum
speed zone ends
*
: No speed limit information
is dis-
played when speed limit sign or speed
limit related sign information is not avail-
able.
Speed limit related information
*1, 2
: Motorway entrance
: Motorway exit
: Expressway entrance
: Expressway exit
: Urban area beginning
: Urban area ending
: Urban area beginning
: Urban area ending
: Residential area beginning
: Residential area ending
*1
: Displayed when a sign is recognized
but speed limit information for the road
is not available from the navigation sys-
tem
*2
: No speed limit information
is dis-
played when speed limit sign or speed
limit related sign information is not
available.
No-overtaking road signs
: No overtaking begins
Supported types of road signs
251
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4-5. Using the driving support systems
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: No overtaking ends
Other road signs
: No-entry
*
: End of prohibition
: Stop
*
: For vehicles with navigation system
Speed limit with supplemental
mark
*1
: Wet
: Rain
: Ice
: Supplemental mark exists
*2
: Exit ramp on right
*3
: Exit ramp on left
*3
: Time
*1
: Displayed simultaneously with speed
limit
*2
: Contents not recognized.
*3
: If the turn signal indicator is not oper-
ated when changing lanes, the mark
does not display.
In the following situations, the RSA sys-
tem will notify the driver.
When the vehicle speed exceeds
the speed notification threshold of
the speed limit sign displayed, the
sign display will be emphasized and
a buzzer will sound.
When the RSA system recognizes a
no-entry sign and detects that the
vehicle has entered a no-entry area
based on the map information of the
navigation system, the no-entry sign
flashes and a buzzer will sound. (For
vehicles with navigation system)
If it is detected that your vehicle is
overtaking when a no overtaking
sign is displayed on the multi-infor-
mation display, the displayed sign
will flash and a steering wheel will
vibrate.
Depending on the situation, traffic
environment (traffic direction,
speed unit) may be detected incor-
rectly and a notification function
may not operate properly.
Q
Setting procedure
1
Press
or
of the meter control
switches and select
2
Press
or
of the meter control
switches and select “Vehicle Settings”,
then press “OK”
3
Press
or
of the meter control
switches and select
, then press
“OK”
Notification function
252
4-5. Using the driving support systems
4
Press
or
of the meter control
switches and select “RSA”, then press
“OK”
Q
Automatic turn-off of RSA sign display
One or more signs automatically turn off in
the following situations.
O
No sign has been recognized for a cer-
tain distance.
O
The road changes due to a left or right
turn, etc.
Q
Conditions in which the function may
not operate or detect correctly
In the following situations, RSA does not
operate normally and may not recognize
signs, display the incorrect sign, etc. How-
ever, this does not indicate a malfunction.
O
The front camera is misaligned due to a
strong impact being applied to the sen-
sor, etc.
O
Dirt, snow, stickers, etc. are on the wind-
shield near the front camera.
O
In inclement weather such as heavy rain,
fog, snow or sand storms.
O
Light from an oncoming vehicle, the sun,
etc. enters the front camera.
O
The sign is dirty, faded, tilted or bent.
O
The contrast of electronic sign is low.
O
All or part of the sign is hidden by the
leaves of a tree, a pole, etc.
O
The sign is only visible to the front camera
for a short amount of time.
O
The driving scene (turning, lane change,
etc.) is judged incorrectly.
O
If a sign not appropriate for the currently
traveled lane, but the sign exists directly
after a freeway branches, or in an adja-
cent lane just before merging.
O
Stickers are attached to the rear of the
preceding vehicle.
O
A sign resembling a system compatible
sign is recognized.
O
Side road speed signs may be detected
and displayed (if positioned in sight of the
front camera) while the vehicle is travel-
ing on the main road.
O
Roundabout exit road speed signs may
be detected and displayed (if positioned
in sight of the front camera) while travel-
ing on a roundabout.
O
The front of the vehicle is raised or low-
ered due to the carried load.
O
The surrounding brightness is not suffi-
cient or changes suddenly.
O
When a sign intended for trucks, etc. is
recognized.
O
The vehicle is driven in a country with a
different direction of traffic.
O
The navigation system map data is out-
dated.
O
The navigation system is not operating.
O
The speed information displayed on the
meter and on the navigation system may
be different due to the navigation system
using map data.
Q
Speed limit sign display
If the power switch was last turned off while
a speed limit sign was displayed on the
multi-information display, the same sign dis-
plays again when the power switch is turned
to ON.
Q
Customization
Some functions can be customized. (Cus-
tomizable features:
P.484)
253
4
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*
: If equipped
Q
Meter display
Multi-information display
Set speed
Indicators
Q
Operation switches
Vehicle-to-vehicle distance switch
“+RES” switch
Cruise control main switch
Cancel switch
“-SET” switch
Dynamic radar cruise con-
trol with full-speed range
*
In vehicle-to-vehicle distance con-
trol mode, the vehicle automati-
cally accelerates, decelerates and
stops to match the speed changes
of the preceding vehicle even if the
accelerator pedal is not depressed.
In constant speed control mode,
the vehicle runs at a fixed speed.
Use the dynamic radar cruise con-
trol with full-speed range on free-
ways and highways.
Vehicle-to-vehicle distance con-
trol mode (
P.255)
Constant speed control mode
(
P.260)
System components
A
B
C
WARNING
Q
Before using dynamic radar cruise
control with full-speed range
O
Driving safely is the sole responsibility
of the driver. Do not rely solely on the
system, and drive safely by always pay-
ing careful attention to your surround-
ings.
O
The dynamic radar cruise control with
full-speed range provides driving
assistance to reduce the driver’s bur-
den. 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.262
• Conditions under which the vehicle-
to-vehicle distance control mode may
not function correctly:
P.263
A
B
C
D
E
254
4-5. Using the driving support systems
WARNING
O
Set the speed appropriately depend-
ing on the speed limit, traffic flow, road
conditions, weather conditions, etc.
The driver is responsible for checking
the set speed.
O
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, the
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.
O
Switch the dynamic radar cruise con-
trol with full-speed range setting to off,
using the cruise control main switch
when not in use.
Q
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.
O
Assisting the driver to measure follow-
ing distance
The dynamic radar cruise control with
full-speed range is only intended to
help the driver in determining the fol-
lowing distance between the driver’s
own vehicle and a designated vehicle
traveling ahead. It is not a mechanism
that allows careless or inattentive driv-
ing, 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 surroundings.
O
Assisting the driver to judge proper
following distance
The dynamic radar cruise control with
full-speed range determines whether
the following distance 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.
O
Assisting the driver to operate the
vehicle
The dynamic radar cruise control with
full-speed range does not include
functions which will prevent 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.
Q
Situations unsuitable for dynamic
radar cruise control with full-speed
range
Do not use dynamic radar cruise control
with full-speed range in any of the follow-
ing situations.
Doing so may result in inappropriate
speed control and could cause an acci-
dent resulting in death or serious injury.
O
Roads where there are pedestrians,
cyclists, etc.
O
In heavy traffic
O
On roads with sharp bends
O
On winding roads
O
On slippery roads, such as those cov-
ered with rain, ice or snow
255
4
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This mode employs a radar to detect the presence of vehicles up to approximately
100 m (328 ft.) ahead, determines the current vehicle-to-vehicle following dis-
tance, and operates to maintain a suitable following distance from the vehicle
ahead. The desired vehicle-to-vehicle distance can also be set by operating the
vehicle-to-vehicle distance switch.
When driving on downhill slopes, the vehicle-to-vehicle distance may become shorter.
WARNING
O
On steep downhills, or where there
are sudden changes between sharp up
and down gradients
Vehicle speed may exceed the set
speed when driving down a steep hill.
O
At entrances to freeways and high-
ways
O
When weather conditions are bad
enough that they may prevent the sen-
sors from detecting correctly (fog,
snow, sandstorm, heavy rain, etc.)
O
When there is rain, snow, etc. on the
front surface of the radar or front cam-
era
O
In traffic conditions that require fre-
quent repeated acceleration and
deceleration
O
When your vehicle is towing a trailer
(vehicles with towing package) or
during emergency towing
O
When an approach warning buzzer is
heard often
Driving in vehicle-to-vehicle distance control mode
256
4-5. Using the driving support systems
Example of constant speed cruising
When there are no vehicles ahead
The vehicle travels at the speed set by the driver.
Example of deceleration cruising and follow-up cruising
When a preceding vehicle driving slower than the set speed appears
When a vehicle is detected running ahead of you, the system automatically decelerates
your vehicle. When a greater reduction in vehicle speed is necessary, the system applies
the brakes (the stop lights will come on at this time). The system will respond to changes in
the speed of the vehicle ahead in order to maintain the vehicle-to-vehicle distance set by
the driver. Approach warning warns you when the system cannot decelerate sufficiently to
prevent your vehicle from closing in on the vehicle ahead.
When the vehicle ahead of you stops, your vehicle will also stop (vehicle is stopped by sys-
tem control). After the vehicle ahead starts off, pressing the “+RES” switch or depressing
the accelerator pedal (start-off operation) will resume follow-up cruising. If the start-off
operation is not performed, system control continues to keep your vehicle stopped.
When the turn signal lever is operated and your vehicle moves to an overtaking lane while
driving at 80 km/h (50 mph) or more, the vehicle will accelerate to help to overtake a
passing vehicle.
The system’s identification of what is an overtaking lane may be determined solely based on
the location of the steering wheel in the vehicle (left side driver position versus right side
driver position.) If the vehicle is driven to a region where the overtaking lane is on a differ-
ent side from where the vehicle is normally driven, the vehicle may accelerate when the
turn signal lever is operated in the opposite direction to the overtaking lane (e.g., if the
driver normally operates the vehicle in a region where the overtaking lane is to the right but
then drives to a region where the overtaking lane is to the left, the vehicle may accelerate
when the right turn signal is activated).
Example of acceleration
A
B
C
257
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4-5. Using the driving support systems
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When there are no longer any preceding vehicles driving slower than the set
speed
The system accelerates until the set speed is reached. The system then returns to constant
speed cruising.
1
Press the cruise control main
switch to activate the cruise con-
trol.
Dynamic radar cruise control indicator will
come on and a message will be displayed
on the multi-information display. Press the
switch again to deactivate the cruise con-
trol.
If the cruise control main switch is pressed
and held for 1.5 seconds or more, the sys-
tem turns on in constant speed control
mode. (
P.260)
2
Accelerate or decelerate, with
accelerator pedal operation, to the
desired vehicle speed (at or above
approximately 30 km/h [20 mph])
and press the “-SET” switch to set
the speed.
Cruise control “SET” indicator will come
on.
The vehicle speed at the moment the
switch is released becomes the set speed.
To change the set speed, press the
“+RES” or “-SET” switch until the
desired set speed is displayed.
1
Increases the speed
(Except when the vehicle has been
stopped by system control in vehi-
cle-to-vehicle distance control
mode)
2
Decreases the speed
Fine adjustment: Press the switch.
Large adjustment: Press and hold the
switch to change the speed, and release
when the desired speed is reached.
Setting the vehicle speed (vehi-
cle-to-vehicle distance control
mode)
Adjusting the set speed
258
4-5. Using the driving support systems
In the vehicle-to-vehicle distance con-
trol mode, the set speed will be
increased or decreased as follows:
For Europe
Fine adjustment: By 5 km/h (3.1 mph)
*1
or
5 mph (8 km/h)
*2
each time the switch is
pressed
Large adjustment: Increases or decreases
in 5 km/h (3.1 mph)
*1
or 5 mph (8 km/h)
*2
increments for as long as the switch is held
Except for Europe
Fine adjustment: By 1 km/h (0.6 mph)
*1
or 1
mph (1.6 km/h)
*2
each time the switch is
pressed
Large adjustment: Increases or decreases
in 5 km/h (3.1 mph)
*1
or 5 mph (8 km/h)
*2
increments for as long as the switch is held
In the constant speed control mode
(
P.260), the set speed will be
increased or decreased as follows:
Fine adjustment: By 1 km/h (0.6 mph)
*1
or 1
mph (1.6 km/h)
*2
each time the switch is
pressed
Large adjustment: The speed will continue
to change while the switch is held.
*1
: When the set speed is shown in “km/h”
*2
: When the set speed is shown in “MPH”
Pressing the switch changes the vehi-
cle-to-vehicle distance as follows:
1
Long
2
Medium
3
Short
If a vehicle is running ahead of you, the pre-
ceding vehicle mark
will also be dis-
played.
Select a distance from the table below.
Note that the distances shown corre-
spond to a vehicle speed of 80 km/h
(50 mph). Vehicle-to-vehicle distance
increases/decreases in accordance
with vehicle speed. When the vehicle is
stopped by system control, the vehicle
stops at a certain vehicle-to-vehicle
distance depending on the situation.
Changing the vehicle-to-vehicle
distance (vehicle-to-vehicle dis-
tance control mode)
Vehicle-to-vehicle distance set-
tings (vehicle-to-vehicle dis-
tance control mode)
Distance options
Vehicle-to-vehicle
distance
Long
Approximately 50
m (160 ft.)
Medium
Approximately 40
m (130 ft.)
Short
Approximately 30
m (100 ft.)
A
259
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4-5. Using the driving support systems
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After the vehicle ahead of you starts
off, press the “+RES” switch.
Your vehicle will also resume follow-
up cruising if the accelerator pedal is
depressed after the vehicle ahead of
you starts off.
1
Pressing the cancel switch cancels
the speed control.
The speed control is also canceled when
the brake pedal is depressed.
(When the vehicle has been stopped by
system control, depressing the brake pedal
does not cancel the setting.)
2
Pressing the “+RES” switch
resumes the cruise control and
returns vehicle speed to the set
speed.
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 appropri-
ate vehicle-to-vehicle distance.
Q
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 trav-
eling at an extremely slow speed
Immediately after the cruise control
Resuming follow-up cruising
when the vehicle has been
stopped by system control (vehi-
cle-to-vehicle distance control
mode)
Canceling and resuming the
speed control
Approach warning (vehicle-to-
vehicle distance control mode)
260
4-5. Using the driving support systems
speed was set
When depressing the accelerator
pedal
When constant speed control mode is
selected, your vehicle will maintain a
set speed without controlling the vehi-
cle-to-vehicle distance. Select this
mode only when vehicle-to-vehicle
distance control mode does not func-
tion correctly due to a dirty radar, etc.
1
With the cruise control off, press
and hold the cruise control main
switch for 1.5 seconds or more.
Immediately after the switch is pressed, the
dynamic radar cruise control indicator will
come on. Afterwards, it switches to the
cruise control indicator.
Switching to constant speed control mode
is only possible when operating the switch
with the cruise control off.
2
Accelerate or decelerate, with
accelerator pedal operation, to the
desired vehicle speed (at or above
approximately 30 km/h [20 mph])
and press the “-SET” switch to set
the speed.
Cruise control “SET” indicator will come
on.
The vehicle speed at the moment the
switch is released becomes the set speed.
Adjusting the speed setting:
P.257
Canceling and resuming the speed setting:
P.259
When this function is enabled and the
system is operating in vehicle-to-vehi-
cle distance control mode (
P.255),
when a speed limit sign is detected, the
recognized speed limit will be dis-
played with an up/down arrow. The set
speed can be increased/reduced to
the recognized speed limit by pressing
and holding the “+RES”/“-SET” switch.
When the current set speed is lower
than the recognized speed limit
Press and hold the “+RES” switch.
Selecting constant speed con-
trol mode
Dynamic Radar Cruise Control
with Road Sign Assist
261
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4-5. Using the driving support systems
Dr
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When the current set speed is
higher than the recognized speed
limit
Press and hold the “-SET” switch.
Dynamic Radar Cruise Control with
Road Sign Assist can be enabled/dis-
abled in
on the multi-information
display. (
P.108)
When the Dynamic Radar Cruise
Control with Road Sign Assist is oper-
ating, 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.
Q
Dynamic radar cruise control with full-
speed range can be set when
O
The shift lever is in D.
O
The desired set speed can be set when
the vehicle speed is approximately 30
km/h (20 mph) or more. (However,
when the vehicle speed is set while driv-
ing at below approximately 30 km/h [20
mph], the set speed will be set to approxi-
mately 30 km/h [20 mph].)
Q
Accelerating after setting the vehicle
speed
The vehicle can accelerate by operating the
accelerator pedal. After accelerating, the
set speed resumes. However, during vehi-
cle-to-vehicle distance control mode, the
vehicle speed may decrease below the set
speed in order to maintain the distance to
the preceding vehicle.
Q
When the vehicle stops while follow-up
cruising
O
Pressing the “+RES” switch while the
vehicle ahead stops will resume follow-
up cruising if the vehicle ahead starts off
within approximately 3 seconds after the
switch is pressed.
O
If the vehicle ahead starts off within 3 sec-
onds after your vehicle stops, follow-up
cruising will be resumed.
Q
Automatic cancelation of vehicle-to-
vehicle distance control mode
Vehicle-to-vehicle distance control mode is
automatically canceled in the following situ-
ations.
O
VSC is activated.
O
TRC is activated for a period of time.
O
When the VSC or TRC system is turned
off.
O
The sensor cannot detect correctly
because it is covered in some way.
O
When the brake control or output
restriction control of a driving support
system operates.
(For example: Pre-Collision System,
Drive-Start Control)
O
The parking brake is operated.
O
The vehicle is stopped by system control
on a steep incline.
O
The following are detected when the
vehicle has been stopped by system con-
trol:
• The driver is not wearing a seat belt.
• The driver’s door is opened.
• The vehicle has been stopped for about 3
minutes
Enabling/Disabling the Dynamic
Radar Cruise Control with Road
Sign Assist
262
4-5. Using the driving support systems
If vehicle-to-vehicle distance control mode
is automatically canceled for any reasons
other than the above, there may be a mal-
function in the system. Contact any autho-
rized Lexus retailer or Lexus authorized
repairer, or any reliable repairer.
Q
Automatic cancelation of constant
speed control mode
Constant speed control mode is automati-
cally canceled in the following situations:
O
Actual vehicle speed is more than
approximately 16 km/h (10 mph) below
the set vehicle speed.
O
Actual vehicle speed falls below approxi-
mately 30 km/h (20 mph).
O
VSC is activated.
O
TRC is activated for a period of time.
O
When the VSC or TRC system is turned
off.
O
When the brake control or output
restriction control of a driving support
system operates.
(For example: Pre-Collision System,
Drive-Start Control)
If constant speed control mode is automati-
cally canceled for any reasons other than
the above, there may be a malfunction in
the system. Contact any authorized Lexus
retailer or Lexus authorized repairer, or any
reliable repairer.
Q
The Dynamic Radar Cruise Control
with Road Sign Assist may not operate
properly when
As the Dynamic Radar Cruise Control with
Road Sign Assist may not operate properly
in conditions in which RSA may not operate
or detect correctly (
P.252), 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 recognized
speed limit by pressing and holding the
“+RES”/“-SET” switch.
O
If speed limit information is not available
O
When the recognized speed limit is the
same as the set speed
O
When the recognized speed limit is out-
side of the speed range that the dynamic
radar cruise control system can operate
Q
Brake operation
A brake operation sound may be heard and
the brake pedal response may change, but
these are not malfunctions.
Q
Warning messages and buzzers for
dynamic radar cruise control with full-
speed range
Warning messages and buzzers are used to
indicate a system malfunction or to inform
the driver of the need for caution while driv-
ing. If a warning message is shown on the
multi-information display, read the message
and follow the instructions. (
P.229, 422)
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 insuffi-
cient 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.259) 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 detect-
263
4
4-5. Using the driving support systems
Dr
ivin
g
ing 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
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 accelerator
pedal, depending on the situation) as nec-
essary.
As the sensor may not be able to correctly
detect vehicles ahead, the system may not
operate properly.
O
When the road curves or when the lanes
are narrow
O
When steering wheel operation or your
position in the lane is unstable
O
When the vehicle ahead of you deceler-
ates 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 acceler-
ates by depressing the accelerator pedal
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