alarm Lexus HS250h 2011 Do-it-yourself maintenance / LEXUS 2011 HS250H OWNERS MANUAL (OM75037U)

TABLE OF CONTENTSIndex
2
1-1. Hybrid systemHybrid system ................................... 24
Hybrid system precautions ......... 28
Energy monitor/consumption screen................................................ 33
Hybrid vehicle driving tips.......... 38
1-2. Key information Keys ...................................................... 40
1-3. Opening, closing and locking the doors
Smart access system with push-button start .......................... 45
Wireless remote control .............. 55
Doors................................................... 58
Trunk...................................................... 61 1-4. Adjustable components
(seats, mirrors, steering wheel)
Front seats .......................................... 65
Driving position memory (driver’s seat) ................................. 69
Head restraints................................. 72
Seat belts ............................................ 74
Steering wheel................................. 80
Inside rear view mirror.................. 82
Outside rear view mirrors ........... 84
1-5. Opening and closing the windows and moon roof
Power windows................................ 87
Moon roof .......................................... 90
1-6. Refueling Opening the fuel tank cap........... 94
1-7. Theft deterrent system Immobilizer system ........................ 98
Alarm.................................................. 100
Theft prevention labels (for U.S.A.) .................................... 103
1Before driving
For information regarding the equipment listed below, refer to the “Navigation
System Owner’s Manual”.
• Navigation system
• Air conditioning
• Windshield wiper de-icer
• Rear view monitor system
• Intuitive parking assist • Audio/video system
• Rear window and outside rear view
mirror defogging
• Climate control
• Wide view front monitor system

Before driving1
23
1-1. Hybrid systemHybrid system ............................ 24
Hybrid system precautions ... 28
Energy monitor/consumption screen ............. 33
Hybrid vehicle driving tips..... 38
1-2. Key information Keys .............................................. 40
1-3. Opening, closing and locking the doors
Smart access system with push-button start .................... 45
Wireless remote control ......... 55
Doors ........................................... 58
Trunk .............................................. 61
1-4. Adjustable components
(seats, mirrors, steering
wheel)
Front seats ................................... 65
Driving position memory (driver’s seat) ........................... 69
Head restraints .......................... 72
Seat belts ..................................... 74
Steering wheel .......................... 80
Inside rear view mirror ........... 82 Outside rear view mirrors...... 84
1-5. Opening and closing the windows and moon roof
Power windows .......................... 87
Moon roof ................................... 90
1-6. Refueling Opening the fuel tank cap ..... 94
1-7. Theft deterrent system Immobilizer system .................. 98
Alarm.......................................... 100
Theft prevention labels (for U.S.A.) ............................. 103
1-8. Safety information Correct driving posture ....... 104
SRS airbags .............................. 106
Front passenger occupant classification system............. 118
Child restraint systems ......... 123
Installing child restraints........ 127

49
1-3. Opening, closing and locking the doors
1
Before driving
■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 7 )
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 bein g discharged while the vehicle is not in
operation for a long time.
●In the following situations, the smart access system with push-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.

52
1-3. Opening, closing and locking the doors
●If the electronic key is inside the vehicle and a door handle becomes wet during
a car wash, a message may be shown on the multi-information display and a
buzzer will sound outside the vehicle. To turn off the alarm, lock all the doors.
●The lock sensor may not work properly if it comes into contact with ice, snow,
mud, etc. Clean the lock sensor and attempt to operate it again, or use the lock
sensor on the lower part of the door handle.
●Fingernails may scrape against the door during operation of the door handle.
Be careful not to injure fingernails or damage the surface of the door.
■Notes for the unlocking function
●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.
●Gripping the door handle when wearing a glove may not unlock the door.
Remove the gloves and touch the sensor on the back of the handle again.
●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.)
●If there is another electronic key in the detection area, it may take slightly longer
to unlock the doors after the door handle is gripped.
●Fingernails may scrape against the door during operation of the door handle.
Be careful not to injure fingernails or damage the surface of the door.
■When the vehicle is not driven for extended periods
●To prevent theft of the vehicle, do not le ave the electronic key within 6 ft. (2 m)
of the vehicle.
●The smart access system with push-butto n start can be deactivated in advance.
(  P. 580)
■Alarm
Using the smart access system with push-bu tton start to lock the doors will set the
alarm system. ( P. 1 0 0 )
■To operate the system properly
Make sure to carry the electronic key wh en operating the system. Do not get the
electronic key too close to the vehicle when operating the system from the outside
of the vehicle.

53
1-3. Opening, closing and locking the doors
1
Before driving
Depending on the position and holding condition of the electronic key, the key may
not be detected correctly and the system may not operate properly. (The alarm may
go off accidentally, or the door lock prevention may not operate.)
■If the smart access system with push-button start does not operate properly
●Locking and unlocking the doors, unlock ing the trunk: Use the mechanical key.
(  P. 5 4 0 )
●Starting the hybrid system:  P. 5 4 1
■Electronic key battery depletion
●The standard battery life is 1 to 2 years. (The card key battery life is about a year
and a half.)
●If the battery becomes low, an alarm will sound in the cabin when the hybrid sys-
tem stops. (P. 4 9 )
●As the electronic key always transmits radio waves, the battery will become
depleted even if the electronic key is not used. The following symptoms indicate
that the electronic key battery may be depleted. Replace the battery when nec-
essary. ( P. 4 5 9 )
• The smart access system with push-but ton start or the wireless remote con-
trol does not operate.
• The detection area becomes smaller.
• The LED indicator on the key surface does not turn on.
●To avoid serious deterioration, do not leave the electronic key within 3 ft. (1 m) of
the following electrical appliances that produce a magnetic field:
•TVs
• Personal computers
• Cellular phones, cordless phones and battery chargers
• Recharging cellular phones or cordless phones
•Glass top ranges
• Table lamps
■When the electronic key battery is fully depleted
 P. 4 5 9
■Customization
Settings (e.g. smart access system with push-button start) can be changed.
(Customizable features  P. 5 8 0 )

55
1
1-3. Opening, closing and locking the doors
Before driving
Wireless remote control
■Operation signals
Doors: A buzzer sounds and the emergency flashers flash to indicate that thedoors have been locked/unlocked. (Locked: Once; Unlocked: Twice)
Trunk: A buzzer sounds to indicate that the trunk has been unlocked.
Windows and moon roof: A buzzer sounds to indicate that the windows and moon
roof are opening.
■Door lock buzzer
If an attempt to lock the doors is made when a door is not fully closed, a buzzer
sounds continuously. Fully close the door to stop the buzzer, and lock the vehicle
once more.
The wireless remote control can be used to lock and unlock the vehicle.
Locks all the doors
Unlocks all the doors
Pressing the button unlocks the
driver’s door. Pressing the but-
ton again within 3 seconds
unlocks the other doors.
Opens the windows and
moon roof (press and hold)*
Unlocks the trunk (press and
hold)
Sounds the alarm
(press and hold) ( P. 56)
*: This setting must be customized
at your Lexus dealer.

56
1-3. Opening, closing and locking the doors
■Pa n i c m o d e
■Security feature
P. 4 9
■Alarm
Using the wireless remote control to lock the doors will set the alarm system.
( P. 100)
■Conditions affecting operation
 P. 5 0
■If the wireless remote control does not operate properly
Locking and unlocking the doors, unlocking the trunk: Use the mechanical key.
( P. 5 4 0 )
■Electric key battery depletion
 P. 5 3
■When the electric key battery is fully depleted
P. 4 5 9
■Customization
Settings (e.g. door unlocking function) can be changed.
(Customizable features P. 5 8 0 )
When is pressed for longer than about
one second, an alarm will sound intermit-
tently and the vehicle lights will flash to deter
any person from trying to break into or dam-
age your vehicle.
To stop the alarm, press any button on the
electronic key.

62
1-3. Opening, closing and locking the doors
■Tr u n k h a n d l e
■Function to prevent the trunk being locked with the electronic key inside
●When all doors are being locked, closing the trunk lid with the electronic key left
inside the trunk will sound an alarm.
In this case, the trunk lid can be opened using the entry function.
●Even when the spare electronic key is pu t in the trunk with all the doors locked,
the key confinement prevention function can be activated so the trunk can be
opened. In order to prevent theft, take all electronic keys with you when leaving
the vehicle.
●Even when the electronic key is put in the trunk with all the doors are locked, the
key may not be detected depending on the places and the surrounding radio
wave conditions. In this case, the key confinement prevention function cannot
be activated, causing the doors to lock when the trunk is closed. Make sure to
check where the key is before closing the trunk.
●The key confinement prevention function cannot be activated if any one of the
doors is unlocked. In this case, open the trunk using the trunk opener.
■Internal trunk release lever
■Using the mechanical key
The trunk can be also opened using the mechanical key. ( P. 5 4 0 )
Use the trunk handle when closing the trunk.
The trunk lid can be opened by pulling down
on the glow-in-the-dark lever located on the
inside of the trunk lid.
The lever will continue to glow for some time
after the trunk lid is closed.

100
1-7. Theft deterrent system
Alarm
The system sounds the alarm and flashes the lights when forced entry is
detected.
■Triggering of the alarm
The alarm is triggered in the following situations when the alarm is
set:
●A locked door or trunk is unlocked or opened in any way other
than using the entry function, wi reless remote control or mechan-
ical key. (The doors will lock again automatically.)
● The hood is opened.
■ Setting the alarm system
Without navigation system
Close the doors, trunk and
hood, and lock all the doors
using the entry function or wire-
less remote control. The system
will be set automatically after
30 seconds.
The indicator light changes from
being on to flashing when the
system is set.
With navigation systemClose the doors, trunk and
hood, and lock all the doors
using the entry function or wire-
less remote control. The system
will be set automatically after
30 seconds.
The indicator light changes from
being on to flashing when the
system is set.

101
1-7. Theft deterrent system
1
Before driving
■System maintenance
The vehicle has a maintenance-free type alarm system.
■Items to check before locking the vehicle
To prevent unexpected triggering of the alarm and vehicle theft, make sure of the
following:
●Nobody is in the vehicle.
●The windows and moon roof are closed before the alarm is set.
●No valuables or other personal items are left in the vehicle.
■Deactivating or stopping the alarm
Do one of the following to deactivate or stop the alarms:
●Unlock the doors or trunk.
● Turn the “POWER” switch to ACCESSORY or ON mode, or
start the hybrid system. (The alarm will be deactivated or stopped
after a few seconds.)