sensor LEXUS RX270 2014 Owner's Guide

246
2-4. Using other driving systems
RX350/270_EE
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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247
2-4. Using other driving systems
2
When driving
RX350/270_EE
CAUTION
■Conditions under which the vehicle-to-vehicle distance control may not function
correctly
Apply the brakes as necessary in the following conditions as the radar sensor may
not be able to correctly detect vehicles ahead, and a fatal or serious accident may
result:
●When water or snow thrown up by the surrounding vehicles hinders the function-
ing of the radar sensor
●When your vehicle is pointing upwards (caused by a heavy load in the luggage
compartment etc.)
●When the road curves or when the lanes are narrow
●When steering wheel operation or your position in the lane is unstable
●When the vehicle ahead of you decelerates suddenly
■Handling the radar sensor
Observe the following to ensure the cruise control system can function effectively.
Otherwise, the system may not function correctly and could result in an accident.
●Keep the sensor and grille cover clean at all times.
Clean the sensor and grille cover with a soft cloth so you do not mark or damage
them.
●Do not subject the sensor or surrounding area to a strong impact.
If the sensor moves even slightly off position, the system may malfunction. If the
sensor or surrounding area is subject to a strong impact, always have the area
inspected and adjusted by any authorized Lexus dealer or repairer, or another
duly qualified and equipped professional.
●Do not disassemble the sensor.
●Do not attach accessories or stickers to the sensor, grille cover or surrounding
area.
●Do not modify or paint the sensor and grille cover.
●Do not replace them with non-genuine parts.
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248
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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249
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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250
2-4. Using other driving systems
RX350/270_EE
The distance display and buzzer
When a sensor detects an obstacle, the direction of and the approximate
distance to the obstacle are displayed and the buzzer sounds.
The site of the obstacle will flash (detection level 4 only).
■Front corner sensors
Detection
levelMulti-information
displayApproximate dis-
tance to obstacleBuzzer
250 to 37.5 cm
(1.6 to 1.2 ft.)Medium
337.5 to 25 cm
(1.2 to 0.8 ft.)Fa st
425 cm (0.8 ft.) or
lessContinuous
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2-4. Using other driving systems
2
When driving
RX350/270_EE■Front center sensors
■Rear corner sensors
Detection
levelMulti-information
displayApproximate dis-
tance to obstacleBuzzer
1100 to 50 cm
(3.3 to 1.6 ft.)Slow
250 to 40 cm
(1.6 to 1.3 ft.)Medium
340 to 30 cm
(1.3 to 1.0 ft.)Fa st
430 cm (1.0 ft.) or
lessContinuous
Detection
levelMulti-information
displayApproximate dis-
tance to obstacleBuzzer
250 to 37.5 cm
(1.6 to 1.2 ft.)Medium
337.5 to 25 cm
(1.2 to 0.8 ft.)Fa st
425 cm (0.8 ft.) or
lessContinuous
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252
2-4. Using other driving systems
RX350/270_EE■Rear center sensors
Detection
levelMulti-information
displayApproximate dis-
tance to obstacleBuzzer
1150 to 60 cm
(4.9 to 2.0 ft.)Slow
260 to 45 cm
(2.0 to 1.5 ft.)Medium
345 to 35 cm
(1.5 to 1.2 ft.)Fa st
435 cm (1.2 ft.) or
lessContinuous
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253
2-4. Using other driving systems
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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254
2-4. Using other driving systems
RX350/270_EE
■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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255
2-4. Using other driving systems
2
When driving
RX350/270_EE
CAUTION
■Caution when using the Lexus parking assist-sensor
Observe the following precautions.
Failing to do so may result in the vehicle being unable to be driven safely and possi-
bly cause an accident.
●Do not use the sensor at speeds in excess of 10 km/h (6 mph).
●Do not attach any accessories within the sensor range.
NOTICE
■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.
■Conditions possibly indicating system malfunctions
If any of the following occurs, the system may be malfunctioning due to a sensor fail-
ure etc. Have the vehicle inspected by any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional.
●The buzzer does not sound when the Lexus parking assist-sensor mode is set.
●The sensor operation display flashes and the buzzer sounds even when no obsta-
cle is detected.
●An area of the sensors is hit or subjected to a strong impact.
●Either bumper is hit.
●The sensor operation display remains on even though no buzzer sounds.
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