Page 308 of 676
3084-5. Using the driving support systems
LS600h/LS600hL_EE(OM50G20E)
Press the “ON•OFF” button to
activate the cruise control.
Radar cruise control indicator will
come on.
Press the button again to deactivate
the cruise control.
Accelerate or decelerate the
vehicle to the desired speed, and
push the lever down to set the
speed.
“SET” indicator will be displayed.
The vehicle speed at the moment the
lever is released becomes the set
speed.
If this is performed when vehicle
speed is less than about 50 km/h (30
mph) and the vehicle ahead can be
detected, your vehicle will start follow-
ing the vehicle ahead of you at a set
speed of about 50 km/h (30 mph)
(vehicle-to-vehicle distance control
mode only).
Setting the vehicle speed (vehicle-to-vehicle distance control
mode)
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2
Page 309 of 676

3094-5. Using the driving support systems
4
Driving
LS600h/LS600hL_EE(OM50G20E)
To change the set speed, operate the lever until the desired set speed is
displayed.
Increases the speed
(Except when the vehicle has been
stopped by system control in vehicle-
to-vehicle distance control mode)
Decreases the speed
Fine adjustment: Momentarily move
the lever in the desired direction.
Large adjustment: Hold the lever in
the desired direction.
In the vehicle-to-vehicle distance control mode, the set speed will be increased or
decreased as follows: • When the set speed is shown in “MPH”
Fine adjustment: By approximately 8 km/h (5 mph) each time the lever is
operated
Large adjustment: By approximately 8 km/h (5 mph) for each 0.3 seconds the
lever is held
• When the set speed is shown in “km/h”
Fine adjustment: By approximately 5 km/h (3.1 mph) each time the lever is
operated
Large adjustment: By approximately 5 km/h (3.1 mph) for each 0.3 seconds
the lever is held
In the constant speed control mode ( P. 315), the set speed will be increased or
decreased as follows:
Fine adjustment: By approximately 1.6 km/h (1 mph) each time the lever is oper-
ated
Large adjustment: The set speed can be increased or decreased continually until
the lever is released.
Adjusting the set speed
1
2
Page 310 of 676

3104-5. Using the driving support systems
LS600h/LS600hL_EE(OM50G20E)
Pressing the button changes the
vehicle-to-vehicle distance as fol-
lows:
Long
Medium
Short
The vehicle-to-vehicle distance is set
automatically to long mode when the
power switch is turned to ON mode.
If a vehicle is running ahead of you, the
preceding vehicle mark will also be
displayed.
Select a distance from the table below. Note that the distances shown cor-
respond to a vehicle speed of 80 km/h (50 mph). Vehicle-to-vehicle dis-
tance increases/decreases in accorda nce with vehicle speed. When the
vehicle is stopped by system control, the vehicle-to-vehicle distance will
be about 3 m (10 ft.) to 5 m (16 ft.) regardless of the vehicle-to-vehicle dis-
tance setting.
Changing the vehicle-to-vehicle distance
Preceding
vehicle mark
Type A
Type B1
2
3
Vehicle-to-vehicle distance settings
Distance optionsVehicle-to-vehicle distance
LongApproximately 50 m (160 ft.)
MediumApproximately 40 m (130 ft.)
ShortApproximately 30 m (100 ft.)
Page 314 of 676

3144-5. Using the driving support systems
LS600h/LS600hL_EE(OM50G20E)
Example of acceleration
When there are no longer any vehicles ahead driving slower than the
set speed
The system accelerates until the set speed is reached. The system then returns to
constant speed cruising.
When your vehicle is too close to a vehicle ahead, and sufficient auto-
matic deceleration via the cruise control is not possible, the display will
flash and the buzzer will sound to alert the driver. An example of this
would be if another driver cuts in front of you while you are following a
vehicle. Apply the brakes to ensure an appropriate vehicle-to-vehicle dis-
tance.
■Warnings may not occur when
In the following instances, there is a possibility that the warnings will not
occur:
●When the speed of the vehicle ahead matches or exceeds your vehi-
cle speed
●When the vehicle ahead is traveling at an extremely slow speed
●Immediately after the cruise control speed was set
●At the instant the accelerator is applied
Approach warning
3
Page 328 of 676

3284-5. Using the driving support systems
LS600h/LS600hL_EE(OM50G20E)
When the LKA system is on, the lane line display and steering wheel dis-
play are shown.
Lane keeping assist function
operation indication
Steering wheel displayed:
Indicates that the function is currently
operating. (If the lane departure warn-
ing operates at this time, the steering
wheel flashes orange.)
Steering wheel not displayed:
Indicates that the function is not cur-
rently operating. (When the lane
keeping assist function is canceled,
the buzzer will beep twice.)
Dynamic radar cruise control
with full-speed range display
Lane departure warning function
indication (when the inside of the
white line is white):
The function has recognized lane
markers. (If the lane departure warn-
ing operates at this time, the lines flash
orange.)
Lane departure warning function
indication (when the inside of the
white line is black):
A lane marker is not recognized by
the system, or the LKA system func-
tions are temporarily canceled.
Indication on the multi-information display
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2
3
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Page 329 of 676

3294-5. Using the driving support systems
4
Driving
LS600h/LS600hL_EE(OM50G20E)
■Temporary cancelation of the LKA system functions
If any of the following occurs, the LKA system functions will be temporarily canceled.
The functions will resume after the necessary operating conditions have returned.
●The steering wheel is turned as far as necessary to cause the vehicle to change
lanes.
●When the system detects no-handed driving. (The lane keeping assist function will
be temporarily canceled, but the lane departure warning function will continue.)
●The turn signal lever is operated.
●The vehicle speed deviates from the operating range of the LKA system functions.
(The buzzer will beep twice when the lane keeping assist function is being
canceled.)
●When the lane lines cannot be recognized while driving. (The buzzer will beep
twice when the lane keeping assist function is being canceled.)
●When the wiper switch is in the high spee d position or is set to “AUTO” mode with
the wipers operating at high speed. (The lane keeping assist function will be tempo-
rarily canceled, but the lane departure warning function will continue.)
●If the vehicle crosses a line for approximately half a minute or more. (The lane keep-
ing assist function will be temporarily canceled, but the lane departure warning
function will continue.)
●When the lane departure warning function is activated.
The lane departure warning function will not operate again for several seconds
after it has been activated, even if the vehicle leaves the lane again.
■The lane departure warning
It may be difficult to feel the sensory warning depending on the road conditions.
■No-handed driving warning
If the steering wheel is not operated for approximately 15 seconds on a straight road
or approximately 5 seconds on a curve, the buzzer will beep twice, indicators on the
multi-information display will flash, and the lane keeping assist function will be tem-
porarily canceled. If you drive the vehicle with your hands lightly touching the steer-
ing wheel, this may also be detected as no-handed driving.
Page 330 of 676

3304-5. Using the driving support systems
LS600h/LS600hL_EE(OM50G20E)
■After the vehicle has been parked in the sun
The LKA system functions may not be available and a warning message ( P. 563)
will be displayed for a while after driving has started. In such cases, turn the LKA sys-
tem off and turn it on again after normal temperature returns. When the temperature
in the cabin decreases and the temperature around the camera sensor ( P. 324)
becomes suitable for its operation, the functions will begin to operate.
■If there are lane markers on only one side of the vehicle
The lane keeping assist function will not operate. Also, the lane departure warning
will not operate for the side on which lane markers could not be recognized.
■Conditions in which the function may not operate correctly
In the following conditions, the LKA system functions may not operate, or it may not
be possible to ensure adequate performance. Also, the camera sensor may be
unable to recognize lane lines causing the lane departure warning function to oper-
ate incorrectly, or the lane keeping assist function may not operate properly. How-
ever, this does not indicate a malfunction.
●When driving through an area with no lane markers, such as a tollbooth, a crossing
or before a ticket checkpoint
●When driving on a sharp curve
●When lanes are extremely narrow or extremely wide
●When the vehicle leans to one side an unusual amount due to a heavy load or
improper tire inflation pressure
●When the following distance between your vehicle and the vehicle ahead is
extremely short
●When the lane markers are yellow (These may be more difficult for the system to
recognize compared to white markers.)
●When the lane markers are broken, “Raised pavement marker” or stones
●When lane markers are obscured or partially obscured by sand, dirt, etc.
●When there are shadows on the road running parallel with lane markers, or if a
shadow covers the lane markers
●When driving on a particularly bright road surface, such as concrete
●When driving on a road surface that is bright due to reflected light
●When driving in a location where the li ght level changes rapidly, such as the
entrance to or exit from a tunnel
●When sunlight or the headlights of oncoming vehicles are shining directly into the
camera lens
●When driving on roads that are branching or merging
Page 334 of 676
3344-5. Using the driving support systems
LS600h/LS600hL_EE(OM50G20E)
Normal mode
For normal driving.
Press the switch to change the driving mode to normal mode when not in normal
mode.
Comfort mode
By controlling the suspension, riding comfort is further enhanced. Suit-
able for city driving.
When not in comfort mode and the driving mode select switch is turned to the
left, the “COMFORT” indicator comes on in the multi-information display.
Eco drive mode
Use Eco drive mode to help achieve low fuel consumption during trips
that involve frequent accelerating.
When in comfort mode and the driving mode select switch is turned to the left,
the “ECO MODE” indicator comes on in the multi-information display.
Driving mode select switch
The driving modes can be selected to suit driving condition.
1
2
3