Page 414 of 1014

4034-5. Using the driving support system
4
Driving
GS450h_300h_OM_OM30D53E_(EE)
Reactivation of the TRC system linked to vehicle speed
When only the TRC system is turned off, the TRC system will turn on when
vehicle speed increases. However, when both TRC and VSC systems are
turned off, the systems will not turn on even when vehicle speed increases.
Reduced effectiveness of the EPS system
The effectiveness of the EPS system is reduced to prevent the system from
overheating when there is frequent steering input over an extended period of
time. The steering wheel may feel heavy as a result.
* Should this occur,
refrain from excessive steering input or stop the vehicle and turn the hybrid
system off. The EPS system should return to normal within 10 minutes.
*: If the LKA (Lane-Keeping Assist) system cannot operate in this case, a
warning message will be shown on the multi-information display.
Operating conditions of emergency brake signal
When the following three conditions are met, the emergency brake signal
will operate:
The emergency flashers are off.
Actual vehicle speed is over 55 km/h (35 mph).
The brake pedal is depressed in a manner that cause the system to judge
from the vehicle deceleration that this is a sudden braking operation.
Automatic system cancelation of emergency brake signal
The emergency brake signal will turn off in any of the following situations:
The emergency flashers are turned on.
The brake pedal is released.
The system judges from the vehicle deceleration that is not a sudden brak-
ing operation.
Page 417 of 1014

4064-5. Using the driving support system
GS450h_300h_OM_OM30D53E_(EE)
PCS (Pre-Crash Safety system)
Pre-crash seat belts (front seat only)
If the pre-crash sensor detects that a collision is unavoidable, the
pre-crash safety system will retract the seat belt before the colli-
sion occurs.
The same will happen if the driver makes an emergency braking
or loses control of the vehicle. (P. 40)
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.
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 determines that a collision is unavoidable,
the brakes are automatically applied to reduce the collision
speed.
: If equipped
When the radar sensor detects the possibility of a frontal collision,
the pre-crash safety system such as the brakes and seat belts are
automatically engaged to lessen impact as well as vehicle damage.
The pre-crash safety system can be turned on and off as necessary
by operating the switch. (P. 408)
Page 423 of 1014

4124-5. Using the driving support system
GS450h_300h_OM_OM30D53E_(EE)
Situations in which the pre-crash safety system does not function properly
The system may not function effectively in situations such as the following:
On roads with sharp bends or uneven surfaces
If a vehicle suddenly moves in front of your vehicle, such as at an intersec-
tion
If a vehicle suddenly cuts in front of your vehicle, such as when overtaking
In inclement weather such as heavy rain, fog, snow or sand storms
When your vehicle is skidding
When your vehicle is steeply inclined
When the radar sensor moves off position due to its surrounding area being
subjected to a strong impact
Automatic cancelation of the pre-crash safety system
When a malfunction occurs due to sensor contamination, etc. that results in
the sensors being unable to detect obstacles, the pre-crash safety system will
be automatically disabled. In this case, the system will not activate even if
there is a collision possibility.
When there is a malfunction in the system, or if the system is temporarily
unusable
“PCS” warning light will flash and warning messages will be displayed.
(P. 832, 841)
Page 431 of 1014
4204-5. Using the driving support system
GS450h_300h_OM_OM30D53E_(EE)
The outside rear view mirror indicators visibility
When under strong sunlight, the outside rear view mirror indicator may be
difficult to see.
Rear Crossing Traffic Alert buzzer hearing
Rear Crossing Traffic Alert function may be difficult to hear over loud noises
such as high audio volume.
When there is a malfunction in the Blind Spot Monitor
If a system malfunction is detected due to any of the following reasons,
warning messages will be displayed: (P. 845, 855)
There is a malfunction with the sensors
The sensors have become dirty
The outside temperature is extremely high or low
The sensor voltage has become abnormal
Certification for the Blind Spot Monitor
For vehicles sold in Russia
type approval number: POCC DE.ML05.H01144
For vehicles sold in Ukraine
type approval number: 1O094.000966-13
Page 441 of 1014
4304-5. Using the driving support system
GS450h_300h_OM_OM30D53E_(EE)
Lexus night view
Turn the power switch to ON mode.
Turn the headlights on.
Press the Lexus night view
switch.
The Lexus night view is displayed
on the Remote Touch screen.
To return the screen to its previous
state, press the switch again.
When the light sensor (P. 275)
determines that it is currently night
time from the brightness of the sur-
rounding area, the Lexus night
view can be operated by pressing
the Lexus night view switch while
the headlights are on.
: If equipped
Lexus night view is a system which assists with nighttime driving.
Near-infrared rays are irradiated forward and an image converted
from the irradiated light is shown on the Remote Touch screen.
The image shows pedestrians, obstacles, and road conditions ahead
of the vehicle, which are difficult to see at nighttime with the
naked eye.
Displaying the Lexus night view
1
2
3
Page 442 of 1014
4314-5. Using the driving support system
4
Driving
GS450h_300h_OM_OM30D53E_(EE)
When displaying on the “Main Display” (P. 444)
Lexus night view screen
“Side Display” switching but-
ton
If this button is selected using the Remote Touch when the Lexus night
view is being shown on the “Main Display”, the “Side Display” will
change to a map display. (P. 442)
If the button is selected again, the screen will return to its previous display.
Brightness adjustment button
The brightness of the display can
be adjusted by selecting this button
using the Remote Touch.
Make sure to select the “OK” after
adjusting the brightness.
“-”: Darker
“+”: Brighter
The Lexus night view display
1
2
3
Page 443 of 1014

4324-5. Using the driving support system
GS450h_300h_OM_OM30D53E_(EE)
When displaying on the “Side Display”
When another screen is displayed
on the “Main Display” while the
Lexus night view is being shown
on the “Main Display”, the Lexus
night view screen will be displayed
on the “Side Display”.
Lexus night view screen
“Main Display” switching
button
Switches the Lexus night view
from the “Side Display” to the
“Main Display”.
Imaging range
The image is shown ranging from the tip of the low beam to the high
beam.
If the vehicle speed is less than approximately 15 km/h (9 mph) when the
Lexus night view is operating
An image will be displayed on the Lexus night view screen, but both the
range and the distance of the projection will be limited as near-infrared rays
are not being radiated outward.
When the Lexus night view switch is pressed while the Lexus night view can-
not be operated
Advice information will be displayed on the Lexus night view screen. Follow
the displayed advice.
If the Lexus night view switch is pressed at a time when the Lexus night view
operation is not possible
Follow the advice displayed on the Remote Touch screen.
When the shift lever is shifted to R while the Lexus night view is operating
The Lexus night view screen switches as follows.
“Main Display”: Switches to the rear view monitor system screen.
“Side Display”: The display blacks out and no image is displayed.
1
2
Page 446 of 1014

4354-5. Using the driving support system
4
Driving
GS450h_300h_OM_OM30D53E_(EE)
Before using the Lexus night view
Never depend on this system only.
Lexus night view is intended as a supplemental aid to help you see pedestri-
ans and road conditions ahead of the vehicle. As there are limits to the sys-
tem, do not rely solely on the system while in use, and drive safely while
observing the following precautions.
When using the Lexus night view
Observe the following precautions.
Failure to do so may cause an accident resulting in death or serious injury.
Never drive while looking at the Lexus night view screen only.
Do not look continuously at the Lexus night view screen while driving.
Pedestrians, objects etc. ahead of the vehicle may be overlooked by the
system. The system should always be used as a supplemental aid only.
Lexus night view is designed to help you see objects better when driving
in darkness on a road with few curves. Do not use the Lexus night view in
well-lit areas or on roads with many curves or slopes. There may be areas
that cannot be displayed by the system due to the road conditions (curve
size, gradient, etc.)
Lexus night view may be unable to project some features at an appropriate
level of brightness. Some or all parts of certain features may be dark or
difficult to see. Do not rely solely on the Lexus night view, and drive care-
fully while checking the surroundings for safety, as you would with a nor-
mal vehicle. Also, the following features and conditions may not be
displayed clearly.
Features that are difficult to display:
• Clothing of a pedestrian made of a certain kind of material (ex. leather
jackets)
• The characters on signs and billboards
• The information on road signs
Conditions in which display is difficult:
• Unfavorable weather conditions such as rain, fog, snowfall, snow
storms etc.
• There are large puddles of water on the road surface following rainfall
• The area of the front windshield in front of the camera is fogged up,
dirty or icy
• The areas around the headlights are covered with ice, snow, mud etc.
• The 12-volt battery voltage is remarkably low
• There are bright lights ahead of the vehicle