warning Lexus ES350 2016 Quick Guide / LEXUS 2016 ES350 (OM33B64U) Owner's Guide

183
ES350_OM_OM33B64U_(U)4-5. Using the driving support systems
4
Driving
PCS (Pre-Collision System)
◆Pre-collision warning
When the system determines that
the possibility of a frontal collision is
high, a buzzer will sound and a warn-
ing message will be displayed on the
multi-information display to urge the
driver to take evasive action.
◆Pre-collision brake assist
When the system determines that the po
ssibility of a frontal collision is high,
the system applies greater braking force in relation to how strongly the brake
pedal is depressed.
: If equipped
The pre-collision system uses a radar sensor and camera sensor to detect
vehicles and pedestrians
*1 in front of your vehicle. When the system deter-
mines that the possibility of a frontal collision with a vehicle or pedestrian is
high, a warning operates to urge the driver to take evasive action and the
potential brake pressure is increased to help the driver avoid the collision. If
the system determines that th e possibility of a frontal collision with a vehicle or
pedestrian is extremely high, the brakes are automatically applied
*2 to help
avoid the collision or help reduce the impact to the vehicle occupants and the
vehicle in the collision.
The pre-collision system can be disabl ed/enabled and the warning timing can
be changed. ( P. 1 8 7 )
*1: Depending on the region in which the vehicle was sold, the pedestrian detection
function may not be available. Contact your Lexus dealer for details.
*2: Depending on the region in which the vehicle was sold, the pre-collision brakingfunction (automatic braking function) may not be available. Contact your Lexus
dealer for details.

ES350_OM_OM33B64U_(U)
1874-5. Using the driving support systems
4
Driving
■Enabling/disabling the pre-collision system
The pre-collision system can be enabled/disabled on (P. 7 8 ) o f t h e
multi-information display.
The system is automatically enabled each time the engine switch is turned to IGNI-
TION ON mode.
If the system is disabled, the PCS
warning light will turn on and a mes-
sage will be displayed on the multi-
information display.
■Changing the pre-col lision warning timing
The pre-collision warning timing can be changed on ( P. 7 8 ) o f t h e
multi-information display.
The operation timing setting is retained when the engine switch is turned off.
Far
The warning will begin to operate
earlier than with the default timing.
Middle
This is the default setting.
Near
The warning will begin to operate
later than with the default timing.
Changing settings of the pre-collision system
1
2
3

188
ES350_OM_OM33B64U_(U)4-5. Using the driving support systems
■Operational conditions
For vehicles sold in regions where the pede
strian detection function and pre-collision
braking function are available*4
The pre-collision system is enabled and the sy stem determines that the possibility of a
frontal collision with a vehicle or pedestrian is high.
Each function is operationa l at the following speeds:
●Pre-collision warning:
• Vehicle speed is approximately 7 mph (1 0 km/h) or more. (For detecting a pedes-
trian, vehicle speed is between approxim ately 7 and 50 mph (10 and 80 km/h).)
• The relative speed between your vehicl e and the vehicle or pedestrian ahead is
approximately 7 mph (10 km/h) or more.
●Pre-collision brake assist:
• Vehicle speed is approximately 19 mph (3 0 km/h) or more. (For detecting a pedes-
trian, vehicle speed is between approxim ately 19 and 50 mph (30 and 80 km/h).)
• The relative speed between your vehicl e and the vehicle or pedestrian ahead is
approximately 19 mph (30 km/h) or more.
●Pre-collision braking:
• Vehicle speed is approximately 7 mph (1 0 km/h) or more. (For detecting a pedes-
trian, vehicle speed is between approxim ately 7 and 50 mph (10 and 80 km/h).)
• The relative speed between your vehicl e and the vehicle or pedestrian ahead is
approximately 7 mph (10 km/h) or more.
The system may not operate in the following situations:
●If a battery terminal has be en disconnected and reconnected and then the vehicle has
not been driven for a certain amount of time
●If the shift lever is in R
●If VSC is disabled (only the pre-collision warning function will be operational)
●If the PCS warning light is flashing or illuminated

ES350_OM_OM33B64U_(U)
1894-5. Using the driving support systems
4
Driving
For vehicles sold in regions where the pedestrian detection function is not available
and the pre-collision braking function is available
*4
The pre-collision system is enabled and the system determines that the possibility of a
frontal collision with a vehicle is high.
Each function is operationa l at the following speeds:
●Pre-collision warning:
• Vehicle speed is approximately 10 mph (15 km/h) or more.
• The relative speed between your vehicl e and the vehicle or pedestrian ahead is
approximately 7 mph (10 km/h) or more.
●Pre-collision brake assist:
• Vehicle speed is approximately 19 mph (30 km/h) or more.
• The relative speed between your vehicl e and the vehicle or pedestrian ahead is
approximately 19 mph (30 km/h) or more.
●Pre-collision braking:
• Vehicle speed is approximately 10 mph (15 km/h) or more.
• The relative speed between your vehicl e and the vehicle or pedestrian ahead is
approximately 7 mph (10 km/h) or more.
The system may not operate in the following situations:
●If a battery terminal has be en disconnected and reconnected and then the vehicle has
not been driven for a certain amount of time
●If the shift lever is in R
●If VSC is disabled (only the pre-collision warning function will be operational)
●If the PCS warning light is flashing or illuminated
For vehicles sold in regions where the pede strian detection function and pre-collision
braking function are not available*4
The pre-collision system is enabled and the sy stem determines that the possibility of a
frontal collision with a vehicle is high.
Each function is operationa l at the following speeds:
●Pre-collision warning:
• Vehicle speed is approximately 10 mph (15 km/h) or more.
• The relative speed between your vehicl e and the vehicle or pedestrian ahead is
approximately 7 mph (10 km/h) or more.
●Pre-collision brake assist:
• Vehicle speed is approximately 19 mph (30 km/h) or more.
• The relative speed between your vehicl e and the vehicle or pedestrian ahead is
approximately 19 mph (30 km/h) or more.
The system may not operate in the following situations:
●If a battery terminal has be en disconnected and reconnected and then the vehicle has
not been driven for a certain amount of time
●If the shift lever is in R
●If VSC is disabled (only the pre-collision warning function will be operational)
●If the PCS warning light is flashing or illuminated
*4: Depending on the region in which the vehicle was sold, the pedestrian detection func-
tion and pre-collision braking function may not be available.

ES350_OM_OM33B64U_(U)
1954-5. Using the driving support systems
4
Driving
■If the PCS warning light flashes and a warning message is displayed on the multi-infor-
mation display
The pre-collision system may be temporarily unavailable or there may be a malfunction
in the system.
●In the following situations, the warning light will turn off, the message will disappear and
the system will become operational when normal operating conditions return:
• When the radar sensor or camera sensor or the area around either sensor is hot, such as in the sun
• When the radar sensor or camera sensor or the area around either sensor is cold,
such as in an extremely cold environment
• When the radar sensor or front grille embl em is dirty or covered with snow, etc.
• If the camera sensor is obst ructed, such as when the hood is open or a sticker is
attached to the windshield near the camera sensor
●If the PCS warning light continues to flash or the warning message does not disappear,
the system may be malfunctioning. Have the vehicle inspected by your Lexus dealer
immediately.
■If VSC is disabled
●If VSC is disabled ( P. 257), the pre-collision brake assist and pre-collision braking
functions are also disabled.
●The PCS warning light will turn on and “V SC Turned Off Pre-collision Brake System
Unavailable” will be displayed on the multi-information display.

196
ES350_OM_OM33B64U_(U)4-5. Using the driving support systems
LDA (Lane Departure Alert with steering control)
When driving on highways and freeways with white or yellow lines, this function
alerts the driver when the vehicle might depart from its lane and provides assis-
tance by operating the steering wheel to keep the vehicle in its lane.
The LDA system recognizes visible
white or yellow lines with the camera
sensor on the upper portion of the front
windshield.
◆Lane departure alert function
When the system determines that
the vehicle might depart from its
lane, a warning is displayed on the
multi-information display, and either
the warning buzzer sounds or the
steering wheel vibrates to alert the
driver.
When the warning buzzer sounds or
the steering wheel vibrates, check
the surrounding road situation and
carefully operate the steering wheel
to move the vehicle back to the cen-
ter within the white (yellow) lines.
: If equipped
Summary of functions
Functions included in LDA system

ES350_OM_OM33B64U_(U)
1974-5. Using the driving support systems
4
Driving
◆Steering control function
When the system determines that
the vehicle might depart from its
lane, the system provides assistance
as necessary by operating the steer-
ing wheel in small amounts for a
short period of time to keep the
vehicle in its lane.
If the system detects that the steering
wheel has not been operated for a
fixed amount of time or the steering
wheel is not being firmly gripped, a
warning is displayed on the multi-
information display and the function
is temporarily canceled.
◆Ve h i c l e s w a y w a r n i n g
When the vehicle is swaying or
appears as if it may depart from its
lane multiple times, the warning
buzzer sounds and a message is dis-
played on the multi-information dis-
play to alert the driver.

ES350_OM_OM33B64U_(U)
2014-5. Using the driving support systems
4
Driving
■Operation conditions of each function
●Lane departure alert function
This function operates when all of the following conditions are met.
• LDA is turned on.
• Vehicle speed is approximately 32 mph (50 km/h) or more.
• System recognizes white (yellow) lines.
• Width of traffic lane is approximately 9.8 ft. (3 m) or more.
• Turn signal lever is not operated.
• Vehicle is driven on a straight road or around a gentle curve with a radius of more
than approximately 492 ft. (150 m).
• No system malfunctions are detected. ( P. 2 0 3 )
●Steering control function
This function operates when all of the following conditions are met in addition to the
operation conditions for the lane departure alert function.
• Setting for “Steering Assist” in (Set tings display) of the multi-information
display is set to “On”. ( P. 7 8 )
• Vehicle is not accelerated or decelerated by a fixed amount or more.
• Steering wheel is not operated with a st eering force level suitable for changing
lanes.
• ABS, VSC, TRAC and PCS are not operating.
• Hands off steering wheel alert is not displayed. ( P. 2 0 1 )
●Ve h i c l e s w a y w a r n i n g
This function operates when all of the following conditions are met.
• Setting for “Sway Warning” in (Settings display) of the multi-information dis- play is set to “On”. ( P. 7 8 )
• Vehicle speed is approximately 32 mph (50 km/h) or more.
• Width of traffic lane is approximately 9.8 ft. (3 m) or more.
• No system malfunctions are detected. ( P. 2 0 3 )
■Temporary cancellation of functions
When operation conditions are no longer me t, a function may be temporarily canceled.
However, when the operation conditions are met again, operation of the function is auto-
matically restored. ( P. 2 0 1 )
■Steering control function
Depending on the vehicle speed, lane depart ure situation, road conditions, etc., the
operation of the functions may not be reco gnized or the functions may not operate.
■Lane departure alert function
The warning buzzer may be difficult to hear due to external noise, audio playback, etc.
Also, it may be difficult to feel steering wheel vibrations due to the road conditions, etc.
■Hands off steering wheel alert
When the system determines that the driver has removed their hands from the steering
wheel while the steering control function is operating, a warning message is displayed on
the multi-information display.
If the driver continues to keep their hands off of the steering wheel, the buzzer sounds, a
warning message is displayed and the function is temporarily canceled. This alert also
operates in the same way when the vehicle is driven with the steering wheel lightly
gripped. However, depending on the road conditions, etc., the function may not cancel.

ES350_OM_OM33B64U_(U)
2034-5. Using the driving support systems
4
Driving
■Wa r n i n g m e s s a g e
If the following warning message is displayed on the multi-information display and the
LDA indicator illuminates in orange, follow the appropriate troubleshooting procedure.
If a different warning message is displayed, follow the instructions displayed on the
screen.
Wa r n i n g m e s s a g eDetails/Actions
“Lane Departure Alert
Malfunction
Visit Your Dealer ”The system may not be operating properly.
 Have the vehicle inspected at your Lexus
dealer.
“Forward Camera
System
Unavailable
Clean Windshield”
Dirt, rain, condensation, ice, snow, etc., are
present on the windshield in front of the cam-
era sensor.
 Turn the LDA system off, remove any dirt,
rain, condensation, ice, snow, etc., from the
windshield, and then turn the LDA system
back on.
“Forward Camera
System
Unavailable”
The LDA system is temporarily canceled due
to high temperatures around the camera sen-
sor.
 Turn the LDA system off, wait for the area
around the camera sensor to cool, and
then turn the LDA system back on.
“Lane Departure Alert Unavailable”
The LDA system is temporarily canceled due
to a malfunction in a sensor other than the
camera sensor.
Turn the LDA system off and follow the
appropriate troubleshooting procedures
for warning messages. Afterward, drive
the vehicle for a short time, and then turn
the LDA system back on.
“Lane Departure
Alert
Unavailable
Below Approx
32 MPH”The LDA system cannot be used as the vehicle
speed is approximately 32 mph (50 km/h) or
less.
 Drive the vehicle at approximately 32 mph
(50 km/h) or more.

204
ES350_OM_OM33B64U_(U)4-5. Using the driving support systems
■Customization
The following settings can be changed.
For how to change settings, refer to P. 533.
FunctionSetting details
Lane departure alertAdjust alert sensitivity
Adjust alert type
Steering control functionTurn steering wheel assistance on and off
Vehicle sway warningTurn function on and off
Adjust alert sensitivity