wheel Lexus ES350 2017 s Service Manual

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ES350_OM_OM33C68U_(U)4-5. Using the driving support systems
■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 6 )
●Steering control function
This function operates when all of the follo wing conditions are met in addition to the
operation conditions for the lane departure alert function.
• Setting for “Steering Assist” in (Se ttings display) of the multi-information
display is set to “On”. ( →P. 8 0 )
• Vehicle is not accelerated or decelerated by a fixed amount or more.
• Steering wheel is not operated with a steering force level suitable for changing lanes.
• ABS, VSC, TRAC and PCS are not operating.
• TRAC or VSC is not turned off.
• Hands off steering wheel alert is not displayed. ( →P. 2 0 4 )
●Vehicle sway warning
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. 8 0 )
• 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 6 )
■Temporary cancellation of functions
When operation conditions are no longer met, 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 4 )
■Steering control function
Depending on the vehicle speed, lane departure situation, road conditions, etc., the
operation of the functions may not be recognized 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 whee l vibrations due to the road conditions, etc.
■Hands off steering wheel alert
When the system determines that the driver has removed the hands from the steering
wheel while the steering control function is operating, a warning message is displayed on
the multi-information display and the buzzer sounds.
■White (yellow) lines are only on one side of road
The LDA system will not operate for the side on which white (yellow) lines could not be
recognized.

ES350_OM_OM33C68U_(U)
2074-5. Using the driving support systems
4
Driving
■Customization
The following settings can be changed.
For how to change settings, refer to P. 538.
FunctionSetting details
Lane departure alert functionAdjust alert sensitivity
Adjust alert type
Steering control functionTurn steering wheel assistance on and off
Ve h i c l e s w a y w a r n i n g f u n c t i o nTurn function on and off
Adjust alert sensitivity

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2194-5. Using the driving support systems
4
Driving
■Conditions under which the vehicle-to-vehicle distance control mode may not function
correctly
In the case of the following conditions, operate the brake pedal (or accelerator pedal,
depending on the situation) as necessary.
As the sensor may not be able to correctly detect vehicles ahead, the system may not
operate properly.
●When the vehicle ahead of you decelerates suddenly
●When the road curves or when the lanes are
narrow
●When steering wheel operation or your posi-
tion in the lane is unstable

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2334-5. Using the driving support systems
4
Driving
■Screen display
The parking assist monitor screen will be displayed if the shift lever is shifted to
R while the engine switch is in IGNITION ON mode.Intuitive parking assist (if
equipped)
A simplified image is displayed on
the upper part of the screen when an
obstacle is detected.
■Using the system
Use any of the following modes.
●Estimated course line display mode ( →P. 2 3 5 )
Estimated course lines are dis-
played which move in accor-
dance with the operation of the
steering wheel.
Using the Lexus parking assist monitor
A

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ES350_OM_OM33C68U_(U)4-5. Using the driving support systems
●Parking assist guide line display mode (
→P. 2 3 7 )
The steering wheel return points
(parking assist guide lines) are
displayed.
●Distance guide line display mode
Distance guide lines only are dis-
played.
When the shift lever is in any position other than R, the display mode can be
changed in the following procedure. Press the “MENU” button on the Lexus Display Audio controller, and then
select “Setup” on the screen.
Select “Vehicle”, and then select “Back Camera Guide Line Setting” on the
screen.
Select the desired display mode.
Estimated course line display
mode ( →P. 2 3 5 )
Parking assist guide line display
mode ( →P. 2 3 7 )
Distance guide line display mode
Distance guide lines only are dis-
played.
Switching the display mode
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Driving
■Screen descriptionVehicle width guide line
The line indicates a guide path when the vehicle is being backed straight up.
The displayed width is wider than the actual vehicle width.
The line aligns with the estimated course lines when the steering wheel is straight.
Estimated course lines
The lines show an estimated course when the steering wheel is turned.
Distance guide line
The line moves, together with the estimated course lines, in sync with the steering
wheel. The line shows points approximately 1.5 ft. (0.5 m) (red) and approximately
3 ft. (1 m) (yellow) from the center of the edge of the bumper.
Distance guide line
The line shows distance behind the vehicle, a point approximately 1.5 ft. (0.5 m)
(blue) from the edge of the bumper.
Vehicle center guide line
The line indicates the estimated vehicle center on the ground.
Estimated course line display mode
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ES350_OM_OM33C68U_(U)4-5. Using the driving support systems
■Parking operation
When parking in a space which is in the reverse direction to the space
described in the procedure below, the steering directions will be reversed.
Shift the shift lever to R.
Turn the steering wheel so that
the estimated course lines are
within the parking space, and
back up slowly. Pa r k i n g s p a c e
Estimated course lines
When the rear position of the
vehicle has entered the parking
space, turn the steering wheel so
that the vehicle width guide lines
are within the left and right divid-
ing lines of the parking space. Vehicle width guide line
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Driving
Once the vehicle width guide lines and the parking space lines are parallel,
straighten the steering wheel and back up slowly until the vehicle has com-
pletely entered the parking space.
Stop the vehicle in an appropriate place, and finish parking.
■Screen descriptionVehicle width guide lines
These lines indicate a guide path when the vehicle is being backed straight
up. The displayed width is wider than the actual vehicle width.
Parking assist guide lines
These lines indicate the path of the smallest turn possible behind the vehi-
cle.
These lines also indicate the approximate position of the steering wheel
when parking.
Distance guide line
This line (red) indicates points approximately 1.5 ft. (0.5 m) behind the rear
bumper of your vehicle.
Vehicle center guide line
The line indicates the estimated vehicle center on the ground.
Parking assist guide line display mode
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5
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ES350_OM_OM33C68U_(U)4-5. Using the driving support systems
■Parking operation
When parking in a space which is in the reverse direction to the space
described in the procedure below, the steering directions will be reversed.
Shift the shift lever to R.
Back up until the parking assist
guide line meets the edge of the
left-hand dividing line of the park-
ing space. Parking assist guide line
Parking space dividing line
Turn the steering wheel all the way to the right, and back up slowly.
Once the vehicle is parallel with the parking space, straighten the steering
wheel and back up slowly until the vehicle has completely entered the
parking space.
Stop the vehicle in an appropriate place, and finish parking.
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Driving
‰The guide lines are very far out of alignment
The camera position is out of alignment.Have the vehicle inspected by your Lexus
dealer.
• 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 vehi-
cle’s surroundings.
‰ The estimated course lines move even though the steering wheel is straight
There is a malfunction in the signals being
output by the steering sensor.Have the vehicle inspected by your Lexus
dealer.
‰ Guide lines are not displayed
The trunk is open.
Close the trunk.
If this does not resolve the symptom, have
the vehicle inspected by your Lexus
dealer.
‰The estimated course lines are not displayed
• Battery power is low.
• The steering sensor has been rein-
stalled.
• There is a malfunction in the signals being output by the steering sensor.Stop the vehicle, and turn the steering
wheel as far as it will go to the left and
right.
If this does not resolve the symptom, have
the vehicle inspected by your Lexus
dealer.
Likely causeSolution