Page 209 of 620

2074-1. Before driving
4
Driving
LS600hL_U(OM50E41U)
NOTICE
■When driving the vehicle
●Do not depress the accelerator and brake pedals at the same time during driving,
as this may restrain driving torque.
●Do not use the accelerator pedal or depress the accelerator and brake pedals at
the same time to hold the vehicle on a hill.
■When parking the vehicle
Always shift the shift lever to P. Failure to do so may cause the vehicle to move or
the vehicle may accelerate suddenly if the accelerator pedal is accidentally
depressed.
■Avoiding damage to vehicle parts
●Do not turn the steering wheel fully in either direction and hold it there for an
extended period of time.
Doing so may damage th e power steering motor.
●When driving over bumps in the road, drive as slowly as possible to avoid damag-
ing the wheels, underside of the vehicle, etc.
■If you get a flat tire while driving
A flat or damaged tire may cause the following situations. Hold the steering wheel
firmly and gradually depress the brake pedal to slow down the vehicle.
●It may be difficult to control your vehicle.
●The vehicle will make abnormal sounds or vibrations.
●The vehicle will lean abnormally.
Information on what to do in case of a flat tire ( P. 506, 515)
Page 220 of 620

2184-2. Driving procedures
LS600hL_U(OM50E41U)
■Auto power off function
If the vehicle is left in ACCESSORY mode for more than 20 minutes with the shift
lever in P, the power switch will automatically turn off.
■Sounds and vibrations specific to a hybrid vehicle
P. 7 9
■Electronic key battery depletion
P. 1 3 7
■When the ambient temperature is low, such as during winter driving conditions
It may take time until the “READY” indicator comes on.
■Conditions affecting operation
P. 1 3 4
■Notes for the entry function
P. 1 3 5
■If the hybrid system does not start
The immobilizer system may not have been deactivated. ( P. 8 8 )
Contact your Lexus dealer.
■Steering lock
After turning the power switch off and opening and closing the doors, the steering
wheel will be locked due to the steering lock function. Operating the power switch
again automatically cancels the steering lock.
■When the steering lock cannot be released
■Steering lock motor overheating prevention
To prevent the steering lock motor from ov erheating, the motor may be suspended if
the hybrid system is turned on and off repeatedly in a short period of time. In this
case, refrain from operating the hybrid sy stem. After about 10 seconds, the steering
lock motor will resume functioning. The green indicator light on the power switch
will flash and a message will be shown on the
multi-information display. Press the power
switch again while turning the steering wheel
left and right.
Page 273 of 620

2714-5. Using the driving support systems
4
Driving
LS600hL_U(OM50E41U)
CAUTION
■When the sensor may not be correctly detecting a vehicle ahead
Apply the brakes as necessary when any of the following types of vehicles are in
front of you.
As the sensor may not be able to correctly detect these types of vehicles, the
approach warning ( P. 264) will not be activated, and a fatal or serious accident
may result.
●Vehicles traveling at low speeds
●Vehicles that are stationary
●Motorcycles traveling in the same lane
●Vehicles with small rear ends (trailers with no load on board etc.)
●Vehicles that cut in suddenly
Details about other people/objects the system will not detect:
P. 2 6 9
■Conditions under which the vehicle-to-veh icle distance control may not function
correctly
Apply the brakes as necessary in the following conditions as the radar sensor may
not be able to correctly detect vehicles ahead, and a fatal or serious accident may
result:
●When water or snow splashed by the su rrounding vehicles hinders the function-
ing of the sensor
●When your vehicle is tilted upwards (due to a heavy load in the trunk etc.)
●When the road curves or when the lanes are narrow
●When steering wheel operation or your position in the lane is unstable
●When the vehicle ahead decelerates suddenly as the system is not able to
respond to sudden braking.
Details about limitations:
P. 2 6 9
Details about unsuitable conditions:
P. 2 7 0
Page 276 of 620

2744-5. Using the driving support systems
LS600hL_U(OM50E41U)
Lane departure warning function
If the system judges that the vehicle may deviate from its lane, it alerts
the driver using rapid beeping, indi cations on the multi-information dis-
play, and a sensory warning* given via the steering wheel.
*: A slight steering torque is applied for a short period of time in the direction of the
center of the lane.
Lane keeping assist function• This function will be active when the vehicle-to -vehicle distance con-
trol mode of the dynamic radar crui se control with full-speed range
( P. 257) is set with vehicle sp eed above approximately 45 mph
(72 km/h) and while the lane depa rture warning function is active.
• When the lane keeping assist fu nction is active, a slight steering
torque will be applied, to help the driver maintain the vehicle inside
the lane.
The lane keeping assist function will be temporarily canceled if the steering
wheel is not operated, or if you continue driving with your hands lightly touch-
ing the steering wheel. ( P. 2 7 8 )
Functions included in the LKA
1
2
Page 279 of 620

2774-5. Using the driving support systems
4
Driving
LS600hL_U(OM50E41U)
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
1
2
3
4
Page 280 of 620

2784-5. Using the driving support systems
LS600hL_U(OM50E41U)
■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 can-
celed.)
●When the lane lines cannot be recognized while driving.
●When the wiper switch is in the high speed position or is set to “AUTO” mode with
the wipers operating at high speed. (The la ne 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 282 of 620

2804-5. Using the driving support systems
LS600hL_U(OM50E41U)
●When driving on a road surface that is wet due to rain, previous rainfall, standing
water, etc.
●When the vehicle experiences strong up-and-down motion such as when driving
on an extremely rough road or on a seam in the pavement
●When headlight brightness at nighttime is reduced due to dirt on the lenses, or
when the headlights are misaligned
●When driving with a strong crosswind
●When driving on winding roads or roads that are uneven
●When driving on rough or unpaved roads
■When changing the tires
Depending on the tires used, sufficient performance may not be maintainable.
■Warning messages for LKA
Warning messages are used to indicate a system malfunction or to inform the driver
of the need for caution while driving. ( P. 5 0 3 )
CAUTION
■Before using the LKA system
Do not rely solely on the LKA system. The LKA system does not drive the vehicle
automatically, nor does it reduce the amount of care you need to take. As such, the
driver must always assume full responsi bility for understanding his/her surround-
ings, for operating the steering wheel to correct the driving line, and for driving
safely.
Inappropriate or negligent driving could lead to an accident.
■To avoid operating the LKA by mistake
Switch the LKA off using the LKA switch when not in use.
Page 289 of 620
2874-5. Using the driving support systems
4
Driving
LS600hL_U(OM50E41U)
The vehicle height is maintained at the selected level regardless of the
number of occupants and luggage weight.
Turns high mode on/off.
When on, the “HEIGHT HIGH” indi-
cator will come on.
■Operating sound of the ai r suspension compressor
When the vehicle height is lowered, such as when entering or loading the vehicle, or
high mode is selected, the compressor may operate and a whirring sound may be
heard. This does not indicate a malfunction.
Electronically modulated air suspension
By independently controlling the da mping force of the shock absorbers
for each of the 4 wheels according to the road and driving conditions
and the selected driving mode, this system achieves ride comfort with
superior steering stability, and ensures good vehicle posture.
In addition, vehicle height can be selected according to road and driv-
ing conditions.