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When the set speed is shown in “MPH”
By approximately 8 km/h (5 mph) each time the lever is operated
When the set speed is shown in “km/h”
By approximately 5 km/h (3.1 mph) each time the lever is operated
In the constant speed control mode (→P. 234), the set speed will be
increased or decreased as follows:
Fine adjustment: By approximately 1.6 km/h (1 mph) each time the lever is
operated
Large adjustment: The set speed can be increased or decreased continu-
ally until the lever is released.
■Changing the vehicle-to-vehicle distance
Pressing the button changes the
vehicle-to-vehicle distance as
follows:
Long
Medium
Short
The vehicle-to-vehicle distance
is set automatically to long
mode when the “ENGINE
START STOP” switch is turned
to IGNITION ON mode.
If a vehicle is running ahead of
you, the preceding vehicle mark
will also be displayed.
Preceding vehicle mark
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2-4. Using other driving systems
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When driving
RX350/270_EEExample of follow-up cruising
When following a vehicle driving slower than the set speed
The system continues follow-up cruising while adjusting for changes in the
speed of the vehicle ahead in order to maintain the vehicle-to-vehicle dis-
tance set by the driver.
Example of acceleration
When there are no longer any vehicles ahead driving slower than the
set speed
The system accelerates until the set speed is reached. The system then
returns to constant speed cruising.
Approach warning
When your vehicle is too close to a vehicle ahead, and sufficient auto-
matic 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. Apply the brakes to ensure an appropriate vehicle-to-vehicle dis-
tance.
■Warnings may not occur when
In the following instances, there is a possibility that the warnings will not
occur:
●When the speed of the vehicle ahead matches or exceeds your
vehicle speed
●When the vehicle ahead is traveling at an extremely slow speed
●Immediately after the cruise control speed was set
●At the instant the accelerator is applied
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CAUTION
■Situations unsuitable for dynamic radar cruise control
Do not use dynamic radar cruise control in any of the following situations.
Doing so may result in inappropriate speed control and could cause an accident
resulting in death or serious injury.
●In heavy traffic
●On roads with sharp bends
●On winding roads
●On slippery roads, such as those covered with rain, ice or snow
●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.
●At entrances to expressways
●When weather conditions are bad enough that they may prevent the sensors
from functioning correctly (fog, snow, sandstorm, heavy rain, etc.)
●When an approach warning buzzer is heard often
●When your vehicle is towing a trailer or during emergency towing
■When the sensor may not be correctly detecting the vehicle ahead
Apply the brakes as necessary when any of the following types of vehicles are in
front of you.
As the sensor may not be able to correctly detect these types of vehicles, the
approach warning (→P. 239) will not be activated, and a fatal or serious accident
may result.
●Vehicles that cut in suddenly
●Vehicles traveling at low speeds
●Vehicles that are not moving
●Vehicles with small rear ends (trailers with no load on board etc.)
●Motorcycles traveling in the same lane
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2-4. Using other driving systems
RX350/270_EE
Lexus parking assist-sensor∗
The distance to obstacles measured by the sensors is communicated via
the multi-information display and a buzzer when parallel parking or
maneuvering into a garage is conducted. Always check the surrounding
area when using this system.
■Types of sensors
Front corner sensors
Front center sensors
Rear corner sensors
Rear center sensors
■Setting the Lexus parking assist-sensor mode
Press the menu switch.
The multi-information display
will change modes to elec-
tronic features control mode.
Press the “∧” or “∨” switch
until the Lexus parking assist-
sensor mark appears in the
multi-information display.
STEP1
∗: If equipped
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2-4. Using other driving systems
2
When driving
RX350/270_EE
Display
When the sensors detect an obstacle, a graphic is shown on the multi-
information display depending on the position and distance to the obsta-
cle.
Front corner sensor operation
Front center sensor operation
Rear corner sensor operation
Rear center sensor operation
Press the “ENTER” switch to
change to “ON”.
The Lexus parking assist-sensor
indicator will be displayed.
Each pressing of the switch
turns the Lexus parking assist-
sensor on and off.
When on, the buzzer sounds to
inform the driver that the system
is operational.
Press the menu switch to
change to the normal display.
STEP2
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2
When driving
RX350/270_EE
Detection range of the sensors
Approximately 100 cm (3.3 ft.)
Approximately 150 cm (4.9 ft.)
Approximately 50 cm (1.6 ft.)
The diagram shows the detection
range of the sensors. Note that the
sensors cannot detect obstacles
that are extremely close to the
vehicle.
The range of the sensors may
change depending on the shape of
the object etc.
■The Lexus parking assist-sensor can be operated when
●Front corner sensors:
• The “ENGINE START STOP” switch is in IGNITION ON mode.
• The shift lever is in a position other than P.
• The vehicle speed is less than about 10 km/h (6 mph).
●Front center sensors:
• The “ENGINE START STOP” switch is in IGNITION ON mode.
• The shift lever is in a position other than P or R.
• The vehicle speed is less than about 10 km/h (6 mph).
●Rear corner and center sensors:
• The “ENGINE START STOP” switch is in IGNITION ON mode.
• The shift lever is in R.
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■Sensor detection information
●Certain vehicle conditions and the surrounding environment may affect the
ability of a sensor to correctly detect an obstacle. Particular instances where this
may occur are listed below.
• There is dirt, snow or ice on a sensor.
• A sensor is frozen.
• A sensor is covered in any way.
• The vehicle is leaning considerably to one side.
• On an extremely bumpy road, on an incline, on gravel, or on grass
• The vicinity of the vehicle is noisy due to vehicle horns, motorcycle engines,
air brakes of large vehicles, or other loud noises producing ultrasonic waves.
• There is another vehicle equipped with parking assist sensors in the vicinity.
• A sensor is coated with a sheet of spray or heavy rain.
• The vehicle is equipped with a fender pole or radio antenna.
• Towing eyelets are installed.
• A bumper or sensor receives a strong impact.
• The vehicle is approaching a tall or right-angled curb.
• In harsh sunlight or intense cold weather.
• A non-genuine Lexus suspension (lowered suspension, etc.) is installed.
In addition to the examples above, there are instances in which, because of their
shapes, signs and other objects may be judged by a sensor to be closer than they
are.
●The shape of the obstacle may prevent a sensor from detecting it. Pay particular
attention to the following obstacles:
• Wires, fences, ropes, etc.
• Cotton, snow and other materials that absorb sound waves
• Sharply-angled objects
• Low obstacles
• Tall obstacles with upper sections projecting outwards in the direction of your
vehicle
■If a message is displayed
→P. 5 5 2
■Customization
Settings (e.g. buzzer volume) can be changed.
(Customizable features →P. 6 2 2 )
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2-4. Using other driving systems
2
When driving
RX350/270_EE
Selecting vehicle height
■Height modes
●“HI” mode: For driving on bumpy roads
30 mm (1.2 in.) higher than the normal height
“HI” mode cannot be selected when vehicle speed exceeds 30 km/h (19
mph).
●“N” mode: For ordinary driving
Normal height
●“LO” mode: For sporty driving
Vehicle front: 20 mm (0.8 in.) lower than the normal height
Vehicle rear: 5 mm (0.2 in.) lower than the normal height
●Luggage mode: For easy entry/exit and easy luggage loading/
unloading
30 mm (1.2 in.) lower than the normal height
■Height selector switch
Press the height selector switch for approximately 1 second.
Driver’s side instrument panel
Higher
Pressing this switch while the vehi-
cle is in luggage mode changes the
vehicle height to that of “N” mode.
Lower
Pressing this switch while the vehi-
cle is in “LO” mode changes the
vehicle height to that of luggage
mode.
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