2018 Lexus ES350 steering

ES350_OM_OM06134U_(U)
2034-5. 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 approximatel y 32 mph (50 km/h) or more.
• System recognizes white (yellow) lines.
• Width of traffic lane is approx imately 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. 205)
●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 (Set tings display) of the multi-information
display is set to “On”. ( →P. 80)
• Vehicle is not accelerated or dece lerated 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.
●Vehicle sway warning function
This function operates when all of the following conditions are met.
• Setting for “Sway Warning” in (Setting s display) of the multi-information dis-
play is set to “On”. ( →P. 80)
• Vehicle speed is approximatel y 32 mph (50 km/h) or more.
• Width of traffic lane is approx imately 9.8 ft. (3 m) or more.
• No system malfunctions are detected. ( →P. 205)
■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, operat ion of the function is auto-
matically restored. ( →P. 203)
■Steering control function
Depending on the vehicle speed, lane depart ure situation, road conditions, etc., the
driver may not feel the function is operating or the function may not operate at all.
■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 f eel steering wheel vibrations due to the road conditions, etc.

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ES350_OM_OM06134U_(U)4-5. Using the driving support systems
■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.
If the driver continues to keep the hands off of the steering wheel, a buzzer sounds and a
warning message is displayed. This alert also operates in the same way when the driver
continuously operates the steering wheel only a small amount. However, depending on
the road conditions, etc., the function may not cancel.
■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.
■Conditions in which functions may not operate properly
In the following situations, the camera sensor may not detect white (yellow) lines and var-
ious functions may not operate normally.
●There are shadows on the road that run parallel with, or cover, the white (yellow) lines.
●The vehicle is driven in an ar ea without white (yellow) lines, such as in front of a tollgate
or checkpoint, or at an intersection, etc.
●The white (yellow) lines are cracked, “Botts ’ dots”, “Raised pavement marker” or stones
are present.
●The white (yellow) lines cannot be seen or are difficult to see due to sand, etc.
●The vehicle is driven on a road surface that is wet due to rain, puddles, etc.
●The traffic lines are yellow (which may be more difficult to recognize than lines that are
white).
●The white (yellow) lines cross over a curb, etc.
●The vehicle is driven on a bright surface, such as concrete.
●The vehicle is driven on a surface that is bright due to reflected light, etc.
●The vehicle is driven in an area where the brightness changes suddenly, such as at the
entrances and exits of tunnels, etc.
●Light from the headlights of an oncoming vehicle, the sun, etc. enters the camera.
●The vehicle is driven where the road diverges, merges, etc.
●The vehicle is driven on a slope.
●The vehicle is driven on a road which tilts left or right, or a winding road.
●The vehicle is driven on an unpaved or rough road.
●The vehicle is driven around a sharp curve.
●The traffic lane is excessively narrow or wide.
●The vehicle is extremely tilted due to carry ing heavy luggage or having improper tire
pressure.
●The distance to the preceding vehicle is extremely short.
●The vehicle is moving up and down a large am ount due to road conditions during driv-
ing (poor roads or road seams).
●The headlight lenses are dirty and emit a faint amount of light at night, or the beam axis
has deviated.
●The vehicle is struck by a crosswind.
●The vehicle has just changed lane s or crossed an intersection.
●Snow tires, etc. are equipped.

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ES350_OM_OM06134U_(U)4-5. Using the driving support systems
■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
Vehicle sway warning functionTurn function on and off
Adjust alert sensitivity

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ES350_OM_OM06134U_(U)4-5. Using the driving support systems
■Conditions under which the ve
hicle-to-vehicle distance control mode may not function
correctly
In the case of the following conditions, o perate the brake pedal (or accelerator pedal,
depending on the situ ation) 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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ES350_OM_OM06134U_(U)4-5. Using the driving support systems
■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. 234)
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

ES350_OM_OM06134U_(U)
2334-5. Using the driving support systems
4
Driving
●Parking assist guide line display mode (→P. 236)
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 Lexu s 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. 234)
Parking assist guide line display
mode ( →P. 236)
Distance guide line display mode
Distance guide lines only are dis-
played.
Switching the display mode
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ES350_OM_OM06134U_(U)4-5. Using the driving support systems
■Screen description
Vehicle width guide line
The line indicates a guide path when the vehicle is being backed straight up.
The displayed width is wider th an 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_OM06134U_(U)
2354-5. Using the driving support systems
4
Driving
■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. Parking space
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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