2010 Lexus HS250h ECO mode

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Pictorial indexInstrument panel
Headlight switch Turn signal lever Fog light switch P. 183
P. 159
P. 194
Tilt and telescopic steering
control switch
 P. 79
Pre-collision brake off switch  P. 233
Parking brake pedal P. 160
EV drive mode switch
Eco mode switch
Power mode switch P. 150
P. 155
P. 155
Hood lock release lever P. 419
Tilt and telescopic steering control lever  P. 79
Glove box P. 364
Trunk opener 
main switch
P. 60
Power (ignition) switch P. 145
Windshield wipers and
washer switch
P. 195
Gauges and meters 
Multi-information display P. 162
P. 169
Audio system *2P. 262

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1-1. Hybrid system
■Charging the battery
As the gasoline engine charges the hybrid battery (traction battery), the battery
does not need to be charged from an outside source. However, if the vehicle is left
parked for a long time the hybrid battery will slowly discharge. For this reason, be
sure to drive the vehicle at least once every few months for at least 30 minutes or
10 miles (16 km). If the hybrid battery be comes fully discharged and you are unable
to jump-start the vehicle with the 12-v olt battery, contact your Lexus dealer.
■After the 12-volt battery has discharged or has been changed or removed
The gasoline engine may not stop even if the vehicle is running on the hybrid battery
(traction battery). If this continues for a few days, contact your Lexus dealer.
■Sounds and vibrations specific to a hybrid vehicle
There may be no engine sounds or vibrat ion even though the vehicle is able to
move. Always change the shift position to P when parked.
The following sounds or vibrations may occur when the hybrid system is operating
and are not a malfunction:
●Motor sounds may be heard fr om the engine compartment.
●Sounds may be heard from the hybrid ba ttery (traction battery) behind the rear
seats when the hybrid system starts or stops.
●Sounds from the hybrid system may be heard when the trunk lid is open.
●Sounds may be heard from the transaxle wh en the hybrid system starts or stops,
or while the vehicle is idling.
●Engine sounds may be heard when accelerating sharply.
●Sounds may be heard due to regenerati ve braking when the brake pedal is
depressed and accelerator is loosened.
●Other sounds, such as motors and mechanical noises, may be heard from the
brake system when the brake pedal is depressed.
●Vibration may be felt when the gasoline engine starts or stops.
●Cooling fan sounds may be heard from the air intake vent on the side of rear left
seatback.
When driving in Eco mode, the fan noise may be louder than when driving nor-
mally.
■Maintenance, repair, recycling, and disposal
Contact your Lexus dealer regarding main tenance, repair, recycling and disposal.
Do not dispose of the vehicle yourself.

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1
1-1. Hybrid system
Before driving
Hybrid vehicle driving tips
For economical and ecological driving, pay attention to the following
points:
■ Using Eco Mode
When using Eco mode, the torque corresponding to the accelerator pedal
depression amount can be generated more smoothly than it is in normal
conditions. In addition, the operation of the air conditioning system will be
minimized, improving the fuel economy. 
( P. 1 5 5 )
■Use of Hybrid System Indicator
The environmentally-friendly driving is possible by keeping the indicate of
Hybrid System Indicator within Eco area. ( P. 1 6 4 )
■When braking the vehicle
Make sure to operate the brakes ge ntly and in good time. A greater
amount of electrical energy can be retained when slowing down.
■ Delays
Repeated acceleration and deceleration, as well as long waits at traffic
lights, will lead to bad fuel consumpt ion. Check traffic reports before leav -
ing and avoid delays as much as possible. When encountering a delay,
gentl
y release the brake pedal to allow the vehicle to move forward slightly
while avoiding overuse of the accelerato r pedal. Doing so can help control
excessive gasoline consumption.
■ Highway driving
Control your speed and keep at a constant speed. Also, before stopping at
a toll booth or similar, allow plenty of time to release the accelerator and
gently apply the brakes. A greater amount of electrical energy can be
retained when slowing down.

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1-3. Opening, closing and locking the doors
■Alarms and warning indicators
A combination of exterior and interior alarms as well as warning messages shown
on the multi-information display is used to prevent theft of the vehicle and accidents
resulting from erroneous operation. Take appropriate measures in response to any
warning message on the multi-information display. ( P. 5 0 1 )
The following table describes circumstances and correction procedures when only
alarms are sounded.
■Security feature
If a door is not opened within approx imately 60 seconds after the vehicle is
unlocked, the security feature automatically locks the vehicle again.
■Battery-saving function
The battery-saving function will be activa ted in order to prevent the electronic key
battery and the 12-volt battery from being discharged while the vehicle is not in
operation for a long time.
●In the following situations, the smart access system with pu sh-button start may
take some time to unlock the doors.
• The electronic key has been left in an area of approximately 6 ft. (2 m) of the
outside of the vehicle for 10 minutes or longer.
• The smart access system with push-button start has not been used for 5 days or longer.
AlarmSituationCorrection procedure
Exterior alarm
sounds once for 10
seconds.An attempt was made to lock
the vehicle while a door was
open.Close all of the doors
and lock the doors
again.
Interior alarm pings
repeatedly
The “POWER” switch was
turned to ACCESSORY
mode while the driver’s door
is open (The driver’s door
was opened when the
“POWER” switch is in
ACCESSORY mode.)
Turn the “POWER”
switch off and close the
driver’s door.

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1-3. Opening, closing and locking the doors
■Note for the entry function
●Even when the electronic key is within the effective range (detection areas), the
system may not operate properly in the following cases:
• The electronic key is too close to the window or outside door handle, near the
ground, or in a high place when the doors are locked or unlocked.
• The electronic key is near the ground or in a high place, or too close to the rear bumper center when the trunk is unlocked.
• The electronic key is on the instrument panel, rear package tray or floor, or in the door pockets or glove box when the hybrid system is started or
“POWER” switch modes are changed.
●As long as the electronic key is within the effective range, the doors may be
locked or unlocked by anyone.
●Even if the electronic key is not inside th e vehicle, it may be possible to start the
hybrid system if the electronic key is near the window.
●The doors may unlock if a large amount of water splashes on the door handle,
such as in the rain or in a car wash when the electronic key is within the effective
range. (The door will automatically be locked after approximately 60 seconds if
the doors are not opened and closed.)
●Gripping the door handle when wearing a glove may not unlock the door.
●If the wireless remote control is used to lock the doors when the electronic key
is near the vehicle, there is a possibility that the door may not be unlocked by the
entry function. (Use the wireless re mote control to unlock the doors.)
●A sudden approach to the effective range or door handle may prevent the
doors from being unlocked. In this case, return the door handle to the original
position and check that the doors unlock before pulling the door handle again.
■Notes for locking the doors
●Touching the door lock sensor while we aring gloves may delay or prevent lock
operation. Remove the gloves and touch the lock sensor again.
●When the lock operation is performed using the lock sensor, recognition signals
will be shown up to two consecutive times. After this, no recognition signals will
be given.
●If the door handle becomes wet while the electronic key is within the effective
range, the door may lock and unlock repeatedly. Place the key in a position 6 ft.
(2 m) or more separate from the vehicle while the vehicle is being washed. (Take
care to ensure that the key is not stolen.)

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1-4. Adjustable components (seats, mirrors, steering wheel)
Driving position memory (driver’s seat)
: If equipped
Your preferred driving position (the po sition of the driver’s seat, steering
wheel and outside rear view mirrors) can be memorized and recalled with
the touch of a button. It is also possible to set this function to activate auto
-
matically when the doors are unlocked. 
Three different driving positions can be entered into memory.
■ Entering a position to memory
Check that the shift position is in P.
Turn the “POWER” switch to ON mode.
Adjust the driver’s seat, steering wheel and outside r
ear view
mirrors to the desired positions.
While pressing and holding the
“
SET” button, or within 3 sec -
onds of pressing the “SET” but -
ton, press button 1, 2 or 3 until
the signal beeps.
If the selected button has
already been preset, the previ -
ously recorded position will be
o
verwritten.
■ Recalling the memorized position
Check that the shift position is in P.
Turn the “POWER” switch to ON mode.
Press button 1, 2 or 3 until the
signal beeps to r
ecall the
desired position.

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1-4. Adjustable components (seats, mirrors, steering wheel)
1
Before driving
Linking driving position memory with door unlock operation
Record your driving position to button 1, 2 or 3 before performing the fol-
lowing:
Carry only the key (including the card k
ey) to which you want to link the
driving position. If 2 or more keys are in the vehi cle, the driving position
cannot be linked properly.
Shift the shift position to P and close the driv
er’s door. Turn the
“POWER” switch to ON mode.
Press the desired button (1, 2 or 3)
to r
ecall the position. Then, while
keep pressing the button, press the
driver’s door lock switches (either
lock or unlock) until the signal
beeps.
The driving position is recalled
when the driver’s door is unlocked
using the entry function or wireless
remote control and the driver’s
door is opened.

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1-4. Adjustable components (seats, mirrors, steering wheel)
■Operating the driving position memory after turning the “POWER” switch off
Memorized positions (except for the steeri ng
wheel position) can be activated up
to 180 seconds after the driver’s door is opened and another 60 seconds after it is
closed again, even after turning the “POWER” switch off.
■Canceling the linked do or unlock operation
Turn the “POWER” switch to ON mode and close the driver’s door.
While pressing the “SET” button, press the driver’s door lock switches
(either lock or unlock) until the signal beeps.
■Stopping seat position op eration part-way through
Perform any of the following operations:
●Press the “SET” button.
●Press button 1, 2 or 3.
●Adjust the seat using the switches (only cancels seat position recall).
●Adjust the steering wheel using the tilt and telescopic steering control switch
(only cancels steering wheel position recall).
■Correct seat position
When the seat is in the most forward or most ba
ckward position, and the seat is
being moved in those directions, the syst em may not correctly recognize the cur-
rent position and the memorized posi ti
on will not be correctly recalled.
■Customization
If a seat position is memorized, the driv er seat will mo
ve back the set distance 
(  P. 5 7 2
) from that memorized position.
CAUTION
■Seat adjustment caution
Take care during seat adjustment so that th e seat does not strike the rear passenger
or squeeze your body against the steering wheel.