Lexus HS250h 2010 Scheduled Maintenance Guide / LEXUS 2010 HS250H QUICK GUIDE (OM75023U) Owner's Manual

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■EV drive mode
In EV drive mode, the electric motor (traction motor), powered by the hybrid battery (trac-
tion battery), is used to drive the vehicle.
This mode allows you to drive in residential areas late at night, or in indoor parking lots etc.
without concern for noises and exhaust gas emissions.
Tu r n s E V d r i v e m o d e o n /o f f
When EV drive mode is turned on, the
EV drive mode indicator will come on.
Pressing the switch when in EV drive
mode will return the vehicle to normal
driving (using the gasoline engine and
electric motor [traction motor]).
■Situations in which EV drive mode cannot be turned on
It may not be possible to turn EV drive mode on in the following situations. If it cannot be
turned on, a buzzer will sound and a message will be shown on the multi-information dis-
play.
• Engine coolant temperature is low.
• Vehicle speed is about 19mph (30km/h) or more.
• The hybrid battery (traction battery) is low.
An “Energy Monitor” display of level 3 or lower may indicate a low battery level.
• The temperature of the hybrid system is high.
The vehicle has been left in the sun, driven on a hill, driven at high speeds, etc.
• The temperature of the hybrid system is low.
The vehicle has been left in temperatures lower than about 32°F (0°C) for a long
period of time etc.
• The gasoline engine is warming up.
• The accelerator pedal is depressed firmly or the vehicle is on a hill etc.
• The windshield defogger is in use.

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Multi-information Display
■Multi-information switches
Menu switch
Changes modes to electronic feature
control mode (if equipped), customiza-
tion mode or back to normal display
mode.
“ENTER” switch
Changes trip information items. This
switch is also used to turn on/off elec-
tronic feature controls and to change
customization settings.
■Display contents
The multi-information display presents the driver with a variety of driving-related data
including the current outside air temperature.
Trip information contentsSwitching display items
Energy monitor
Press the “ENTER” switch upward or
downward.
Total distance/Total average fuel con-
sumption
Current fuel consumption/Average
fuel consumption after refueling
Cruising range
Average vehicle speed
Outside temperature
Tire inflation pressure
Blank

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Display order may vary depending on vehicle condition.
Electronic features control contentsSetting electronic feature controls
AFS (if equipped)P. 3 4
Intuitive parking assist (if equipped)Refer to “Navigation System Owner’s
Manual”
Other contentsDetails
CustomizationSettings of functions such as the door lock
and light illumination time can be changed
Dynamic radar cruise control
(if equipped)Automatically displayed when using the
dynamic radar cruise control
LKA (Lane Keeping Assist) (if equipped)Automatically displayed when using the
lane keeping assist
PCS (Pre-Collision System) (if equipped)Automatically displayed if there is a possi-
bility of collision
Wa r n i n g m e s s a g eAutomatically displayed when a malfunc-
tion occurs in any of the vehicle’s systems

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Eco Driving Indicator Light
Environment-friendly driving
During environment-friendly acceleration
operation (Eco driving), Eco Driving Indica-
tor Light will turn on. When the accelerator
pedal is depressed excessively, and when
the vehicle is stopped, the light turns off.
The Eco Driving Indicator Light will operate
when the vehicle is being driven with the
shift position in D. The indicator will not
operate when the vehicle is in power mode
or EV drive mode.(P. 2 021)
Tu r n S i g n a l L e v e r
Right turn
Left turn
Lane change to the right (push and hold
the lever partway)
The right hand signals will flash until you
release the lever.
Lane change to the left (push and hold
the lever partway)
The left hand signals will flash until you
release the lever.

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Cruise Control (If Equipped)
Indicators
Cruise control switch
■Setting the vehicle speed
Press the “ON-OFF” button to activate
the cruise control.
Press the button again to deactivate
the cruise control.
Accelerate or decelerate to the desired
speed, and push the lever down to set
the speed.
“SET” indicator will come on.
Use the cruise control to maintain a set speed without depressing the accelerator pedal.

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■Adjusting the set speed
Increases the speed
Decreases the speed
Hold the lever until the desired speed
setting is obtained.
Fine adjustment of the set speed can be
made by lightly pushing the lever up or
down and releasing it.
■Canceling and resuming the constant speed control
Pulling the lever toward you cancels the
constant speed control.
The speed setting is also canceled when
the brakes are applied.
Pushing the lever up resumes the con-
stant speed control.
Dynamic Radar Cruise Control (If equipped)
Indicator (vehicle-to-vehicle distance
control mode)
Indicator (SET)
Indicator (constant speed control mode)
Display
Vehicle-to-vehicle distance button
Cruise control switch
Dynamic radar cruise control supplements conventional cruise control with a vehicle-to-
vehicle distance control. In vehicle-to-vehicle distance control mode, the vehicle automat-
ically accelerates or decelerates in order to maintain a set following distance from vehi-
cles ahead.

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■Selecting cruise mode
Selecting vehicle-to-vehicle distance con-
trol mode:
Press the “ON-OFF” button to activate the
cruise control.
Press the button again to deactivate the
cruise control.
Selecting conventional constant speed con-
trol mode:
Press the “ON-OFF” button to activate
the cruise control.
Press the button again to deactivate the
cruise control.
Vehicle-to-vehicle distance control
mode is always reset when the
“POWER” switch is turned to ON
mode.
Switch to constant speed control mode.
(Push the lever forward and hold for
approximately one second.)
Constant speed control mode indicator
will come on.
■Driving in the selected cruise control mode
Accelerate or decelerate to the desired
speed, and push the lever down to set the
speed.
“SET” indicator will come on.
Constant speed control mode
Vehicle-to-vehicle distance control
mode

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■Adjusting the set speed
Increases the speed
Decreases the speed
Hold the lever until the desired speed
setting is displayed.
Fine adjustment of the set speed can be
made by lightly pushing the lever up or
down and releasing it.
■Canceling and resuming the constant speed control
Pulling the lever toward you cancels the
constant speed control.
The speed setting is also canceled when
the brakes are applied.
Pushing the lever up resumes the con-
stant speed control.
■Changing the vehicle-to-vehicle distance
Pressing the button changes the vehicle-to-
vehicle distance as follows:
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 be also dis-
played.Preceding vehicle mark
The vehicle-to-vehicle distance control mode maintains the preset cruising speed as long
as no vehicle is detected ahead.

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LKA (Lane-Keeping Assist) (If Equipped)
Lane departure warning function
If the system judges that the vehicle may deviate from its lane, it alerts the driver using
rapid beeping, indications on the multi-information display, and a sensory warning given
via the steering wheel.
Lane keeping assist function
This function will be active when the vehicle-to-vehicle distance control mode of the
cruise control is set with vehicle speed above approx. 45 mph (approx. 72 km/h) and
while the lane departure warning function is active. When the lane keeping assist func-
tion is active, a slight steering torque will be applied, to help the driver maintain the vehi-
cle inside the lane.
■Turning the LKA system on
The lane departure warning function and lane keeping assist function will be activated
depending on the recognition condition of lane markers, vehicle speed and the setting of
radar cruise control (vehicle-to-vehicle distance control mode).
Press the “LKA” switch to activate the sys-
tem.
“LKA” indicator will come on.
Press the switch again to turn the LKA
system off.
While driving on a freeway or motor highway that has lane markers, this system recog-
nizes the lanes using a camera as a sensor to assist the driver with staying in the lane. The
LKA system has two functions.

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■Indication on the multi-information display
While the LKA system is on, the lane line display and steering wheel display (in case of lane
keeping assist function) are shown on the multi-information display to inform that the LKA
system is on.
Steering wheel display
The lane keeping assist function is active.
Dynamic radar cruise control display
Lane line display
When thin lines are shown:
A lane marker is not recognized by the
system, or the LKA system functions are
temporarily canceled. (When the lane
keeping assist function is canceled,
buzzer will beep twice.)
When solid lane lines are shown:
The lane departure warning function is
active.
Head-up Display (If Equipped)
Head-up display
Display brightness will change automati-
cally according to the brightness of the
surrounding area.
Tu r n - b y - t u r n n a v i g a t i o n s w i t c h
Used to turn the turn-by-turn navigation
on or off.
HUD (Head-up display) main switch
HUD (Head-up display) contrast adjust-
ment switch
Used to adjust the display brightness to
the desired level.
HUD (Head-up display) position adjust-
ment switch
The head-up display can be used to project vehicle speed and other information onto the
windshield.