light Lexus IS300h 2016 Manual Online

2754-5. Using the driving support systems
4
Driving
IS300h_EE(OM53D56E)
NOTICE
■To prevent damage to or incorrect operation of the LDA system
●Do not modify the headlights or attach stickers to the surface of the lights.
●Do not modify the suspension.
If any suspension parts need to be replaced, contact any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional.
●Do not install or place anything on the hood or the grille. Also, do not install a grille
guard (bull bars, kangaroo bar etc.).
●If your windshield needs repairs, contact any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional.
■Camera sensor
Observe the following to ensure that the LDA system functions correctly.
●Keep the windshield clean at all times.
Performance could be affected if the windshie ld is dirty, or if raindrops, condensation
or ice are adhering to the windshield.
●Do not spill liquid onto the camera sensor
●Do not attach window tinting to the windshield.
●Do not install an antenna in front of the camera lens.
●If area of the windshield in front of the camera sensor is fogged up, use the windshield
defogger to remove the fog.
When it is cold, using the heater with air blowing to the feet may allow the upper part
of the windshield to fog up. This will have a negative effect on the images.
●Do not scratch the camera lens, or let it get dirty.
When cleaning the inside of the windshield , be careful not to get any glass cleaner
etc. on the lens. Also, do not touch the lens.
For lens repair, contact any authorized Lexus dealer or repairer, or another duly qual-
ified and equipped professional.
●Do not change the installation position or direction of the camera sensor or remove it.
The direction of the camera sensor is precisely adjusted.
●Do not subject the camera sensor to strong impact or force, and do not disassemble
the camera sensor.
●If the windshield needs to be replaced, contact any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional.
●Do not attach a sticker or other items to the
windshield near the camera sensor.

2764-5. Using the driving support systems
IS300h_EE(OM53D56E)
■Types of sensors
■Lexus parking assist-sensor switch
Turns the Lexus parking assist-sen-
sor on/off
When on, the indicator light comes
on to inform the driver that the sys-
tem is operational.
Lexus parking assist-sensor∗
∗: If equipped
The distance from your vehicle to nearby obstacles when parallel parking or
maneuvering into a garage is measured by the sensors and communicated via
the multi-information display, Lexus Display Audio screen (if equipped) and a
buzzer. Always check the surrounding area when using this system.
Front center sensors
Front corner sensors Rear corner sensors
Rear center sensors1
2
3
4

2814-5. Using the driving support systems
4
Driving
IS300h_EE(OM53D56E)
■Sensor detection information
●The sensor’s detection areas are limited to the areas around the vehicle’s front corner
and rear bumpers.
●Certain vehicle conditions and the surrounding environment may affect the ability of
the sensor to correctly detect obstacles. Particular instances where this may occur are
listed below.
• There is dirt, snow or ice on the sensor. (Wiping the sensors will resolve this prob- lem.)
• The sensor is frozen. (Thawing the area will resolve this problem.)
In especially cold weather, if a sensor is frozen the screen may show an abnormal
display, or obstacles may not be detected.
• The 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.
• The sensor is coated with a sheet of spray or heavy rain.
• The vehicle is equipped with a fender pole or wireless antenna.
• Towing eyelets are installed.
• The bumper or sensor receives a strong impact.
• The vehicle is approaching a tall or curved curb.
• In harsh sunlight or intense cold weather.
• The area directly under the bumpers is not detected.
• If obstacles draw too close to the sensor.
• A non-genuine Lexus suspension (low ered suspension etc.) is installed.
• People may not be detected if they are wearing certain types of clothing.
In addition to the examples above, there are instances in which, because of their shape,
signs and other objects may be judged by the sensor to be closer than they are.
●The shape of the obstacle may prevent the 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 vehi- cle
●The following situations may occur during use.
• Depending on the shape of the obstacle and other factors, the detection distancemay shorten, or detection may be impossible.
• Obstacles may not be detected if they are too close to the sensor.
• There will be a short delay between obst acle detection and display. Even at slow
speeds, there is a possibility that the obstacl e will come within the sensor’s detection
areas before the display is shown and the warning beep sounds.
• Thin posts or objects lower than the sensor may not be detected when approached, even if they have been detected once.
• It might be difficult to hear beeps due to the volume of the audio system or air flow noise of the air conditioning system.
■If a message is displayed on the multi-information display
→ P. 530, 530

2904-5. Using the driving support systems
IS300h_EE(OM53D56E)
■If you notice any symptoms
If you notice any of the following symptoms, refer to the likely cause and the
solution, and re-check.
If the symptom is not resolved by the solution, have the vehicle inspected by
any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional.
Things you should know
Likely causeSolution
‰ The image is difficult to see
• The vehicle is in a dark area
• The temperature around the lens is
either high or low
• The outside temperature is low
• There are water droplets on the cam- era
• It is raining or humid
• Foreign matter (mud etc.) is adhering to the camera
• Sunlight or headlights are shining directly into the camera
• The vehicle is under fluorescent lights,
sodium lights, mercury lights etc.
If this happens due to these causes, it
does not indicate a malfunction.
Back up while visually checking the vehi-
cle’s surroundings. (Use the monitor
again once conditions have been
improved.)
To adjust the image on the rear view mon-
itor system screen. ( →P. 3 4 2 )
‰ The image is blurry
Dirt or foreign matter (such as water
droplets, snow, mud etc.) is adhering to
the camera.Flush the camera with a large quantity of
water and wipe the camera lens clean
with a soft and wet cloth.
‰The image is out of alignment
The camera or surrounding area has
received a strong impact.Have the vehicle inspected by any autho-
rized Lexus dealer or repairer, or another
duly qualified and equipped professional.
‰The fixed guide lines are very far out of alignment
• The vehicle is tilted (there is a heavy
load on the vehicle, tire pressure is low
due to a tire puncture, etc.)
• The vehicle is used on an incline.If this happens due to these causes, it
does not indicate a malfunction. Back up
while visually checking the vehicle’s sur-
roundings.
The camera position is out of alignment.
Have the vehicle inspected by any autho-
rized Lexus dealer or repairer, or another
duly qualified and equipped professional.

2974-5. Using the driving support systems
4
Driving
IS300h_EE(OM53D56E)
◆Adaptive Variable Suspension System (if equipped)
By independently controlling the damping force of the shock absorbers for
each of the 4 wheels according to the road and driving conditions, this system
helps riding comfort with superior steering stability, and helps good vehicle
posture (→P. 2 9 4 )
◆VDIM (Vehicle Dynamics Integrated Management)
Provides integrated control of the ABS, brake assist, TRC, VSC, hill-start
assist control, and EPS systems
Helps to maintain vehicle stability when swerving on slippery road surfaces by
controlling the brakes and hybrid system output
◆PCS (Pre-Crash Safety system) (if equipped)
→P. 3 0 2
◆Emergency brake signal
When the brakes are applied suddenly, the stop lights automatically flash to
alert the vehicle behind
◆BSM (Blind Spot Monitor) (if equipped)
→P. 3 1 0
The slip indicator light will flash while
the TRC/VSC/ABS systems are oper-
ating.
When the TRC/VSC/ABS systems are operating

2984-5. Using the driving support systems
IS300h_EE(OM53D56E)
If the vehicle gets stuck in fresh snow or mud, the TRC system may reduce power
from the hybrid system to the wheels. Pressing to turn the system off may
make it easier for you to rock the vehicle in order to free it.
To turn the TRC system off, quickly
press and release .
The “TRC OFF” will be shown on the
multi-information display. Press
again to turn the system back on.
■Turning off both TRC and VSC systems
To turn the TRC and VSC systems off, press and hold for more than 3 seconds
while the vehicle is stopped.
The VSC OFF indicator light will come on and the “TRC OFF” will be shown on the
multi-information display.
*
Press again to turn the systems back on.
*: On vehicles with pre-crash safety system, pre-crash brake assist and pre-crash brak- ing will also be disabled. The pre-crash safe ty system warning light will come on and
the message will be shown on the multi-information display. ( →P. 3 0 2 )
■When the message is displayed on the mult i-information display showing that TRC has
been disabled even if the VSC OFF switch has not been pressed
TRC cannot be operated. Contact any authorized Lexus dealer or repairer, or another
duly qualified and equipped professional.
Disabling the TRC system

3014-5. Using the driving support systems
4
Driving
IS300h_EE(OM53D56E)
CAUTION
■The ABS does not operate effectively when
●The limits of tire gripping performance have been exceeded (such as excessively
worn tires on a snow covered road).
●The vehicle hydroplanes while driving at high speed on wet or slick roads.
■Stopping distance when the ABS is operating may exceed that of normal conditions
The ABS is not designed to shorten the vehi cle’s stopping distance. Always maintain a
safe distance from the vehicle in front of you, especially in the following situations:
●When driving on dirt, gravel or snow-covered roads
●When driving with tire chains
●When driving over bumps in the road
●When driving over roads with potholes or uneven surfaces
■TRC may not operate effectively when
Directional control and power may not be achievable while driving on slippery road
surfaces, even if the TRC system is operating.
Drive the vehicle carefully in conditions where stability and power may be lost.
■Hill- start assist control does not operate effectively when
●Do not overly rely on hill-start assist control. Hill-start assist control may not operate
effectively on steep inclines and roads covered with ice.
●Unlike the parking brake, hill-start assist co ntrol is not intended to hold the vehicle
stationary for an extended period of time. Do not attempt to use hill-start assist con-
trol to hold the vehicle on an incline, as doing so may lead to an accident.
■When the VSC is activated
The slip indicator light flashes. Always dr ive carefully. Reckless driving may cause an
accident. Exercise particular care when the indicator light flashes.
■When the TRC/VSC systems are turned off
Be especially careful and drive at a speed appropriate to the road conditions. As these
are the systems to help ensure vehicle stability and driving force, do not turn the TRC/
VSC systems off unless necessary.
■Replacing tires
Make sure that all tires are of the specif ied size, brand, tread pattern and total load
capacity. In addition, make sure that the tires are inflated to the recommended tire infla-
tion pressure level.
The ABS, TRC and VSC systems will not function correctly if different tires are installed
on the vehicle.
Contact any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional for further information when replacing tires or wheels.
■Handling of tires and the suspension
Using tires with any kind of problem or modi fying the suspension will affect the driving
assist systems, and may cause a system to malfunction.

3024-5. Using the driving support systems
IS300h_EE(OM53D56E)
◆Pre-crash warning
When a high possibility of a frontal
collision is detected, the pre-crash
safety system warning light flashes, a
buzzer sounds and a message is
shown on the multi-information dis-
play to urge the driver to take eva-
sive action.
◆Pre-crash brake assist
When there is a high possibility of a frontal collision, the system applies
greater braking force in relation to how strongly the brake pedal is depressed.
The system may not warn the driver using a warning light, warning display and
buzzer when the system detects and judges braking operations.
◆Pre-crash braking
When there is a high possibility of a frontal collision, the system warns the
driver using a warning light, warning display and buzzer. If the system deter-
mines that a collision is unavoidable, the brakes are automatically applied to
reduce the collision speed.
◆Suspension control (vehicles with Ad aptive Variable Suspension System)
When the system determines that there is a high possibility of a frontal colli-
sion, the operation of Adaptive Variable Suspension System ( →P. 2 9 7 ) o p t i -
mally controls the damping force of the shock absorber.
PCS (Pre-Crash Safety system)∗
∗
: If equipped
When the radar sensor detects the possibili ty of a frontal collision, brakes are
automatically engaged to lessen im pact as well as vehicle damage.
The pre-crash safety system can be turned on and off as necessary by operat-
ing the switch. ( →P. 303)

3034-5. Using the driving support systems
4
Driving
IS300h_EE(OM53D56E)
Enabled
Disabled
The pre-crash safety system warning
light comes on when pre-crash safety
system is disabled.
The radar sensor detects vehicles or
other obstacles on or near the road
ahead and determines whether a colli-
sion is imminent based on the position,
speed, and heading of the obstacles.
Disabling pre-crash safety system
1
2
Radar sensor

3044-5. Using the driving support systems
IS300h_EE(OM53D56E)
■The pre-crash safety system is operational when
The pre-crash safety system is enabled and the following conditions are met:
●Pre-crash warning:
• Vehicle speed is greater than about 15 km/h (10 mph).
• The speed at which your vehicle is approaching the obstacle or the vehicle runningahead of you is greater than about 15 km/h (10 mph).
●Pre-crash brake assist:
• The VSC system is not disabled.
• Vehicle speed is greater than about 30 km/h (19 mph).
• The speed at which your vehicle is approaching the obstacle or the vehicle runningahead of you is greater than about 30 km/h (19 mph).
• The brake pedal is depressed.
●Pre-crash braking:
• The VSC system is not disabled.
• Vehicle speed is greater than about 15 km/h (10 mph).
• The speed at which your vehicle is approaching the obstacle or the vehicle running ahead of you is greater than about 15 km/h (10 mph).
●Suspension control (vehicles with Adap tive Variable Suspension System):
• Vehicle speed is greater than about 5 km/h (4 mph).
• The speed at which your vehicle is approaching the obstacle or the vehicle running ahead of you is greater than about 30 km/h (19 mph).
■Conditions that may trigger the system ev en if there is no danger of a collision
In any of the following situations where the frontal area of the radar sensor is interrupted,
the radar sensor may detect possibility of a frontal collision and the system may be acti-
vated.
●When passing by an oncoming vehicle in a curve or a turn to the right or the left.
●When rapidly approaching an obstacle ahead (e.g.preceding vehicle, toll gate barrier,
etc.)
●When there is a structural object (billboard , low ceiling, fluorescent light, etc.) above
the uphill road ahead
●When driving on a narrow road or through under a low overhead structure (bridge,
tunnel, fly-under, etc.)
●When driving on an uneven road surface
●When there is a metal object, bump, or protrusion on the road surface
●When vehicle’s front part is raised or lowered depending on loading conditions
●When the direction of radar sensor is misaligned by strong impact applied on an area
around the radar sensor, etc.
●When there is an obstacle (guard rail, etc.) by the roadside at the entrance to a curve
●When the front of your vehicle is pointing upwards (caused by putting a heavy load in
the trunk etc.)
When the system is activated in the situations described above, there is also a possibility
that the brakes may be applied with a force greater than normal.