2011 Lexus HS250h change key battery

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 )

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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.

89
1-5. Opening and closing the windows and moon roof
1
Before driving
■Door lock linked window operation
●The power windows can be opened and closed using the mechanical key. *
( P. 5 4 0 )
●The power windows can be opened using the wireless remote control. *
( P. 5 5 )
*: This setting must be cust omized at your Lexus dealer.
■When the 12-volt battery is disconnected
The window lock switch is disabled. If necessary, press the window lock switch after
reconnecting the battery.
■Customization
Settings (e.g. linked door lock operation) can be changed.
(Customizable features  P. 5 8 0 )
CAUTION
■Closing the windows
Observe the following precautions.
Failing to do so may result in death or serious injury.
●Check to make sure that all passengers do not have any part of their body in a
position where it could be caught when a window is being operated.
●Do not allow children to operate the power windows.
Closing a power window on someone can cause serious injury, and in some
instances, even death.
●To prevent inadvertent power windows operation, never let a small child have and
use the wireless remote control. ( P. 5 5 )
■Jam protection function
●Never use any part of your body to intent ionally activate the jam protection func-
tion.
●The jam protection function may not work if something gets caught just before
the window fully closes.

190
2-3. Operating the lights and windshield wipers
■Automatic light off system
●When the headlights come on: The headlights and tail lights turn off 30 seconds
after a door is opened and closed if the “POWER” switch is turned to ACCES-
SORY mode or turned off. (The lights turn off immediately if on the key is
pressed after all the doors are locked.)
●When only the tail lights come on: The tail lights turn off automatically if the
“POWER” switch is turned to ACCESSORY mode or turned off and the
driver’s door is opened.
To turn the lights on again, turn the “POWER” switch to ON mode, or turn the light
switch off once and then back to or .
■Automatic headlight leveling system (if equipped)
The level of the headlights is automatica lly adjusted according to the number of
passengers and the loading condition of the vehicle to ensure that the headlights do
not interfere with other road users.
■ If the “AFS OFF” indicator flashes (if equipped)
It may indicate a malfunction in the system. Contact your Lexus dealer.
■Customization
Settings (e.g. light sensor sensitivity) can be changed.
(Customizable features P. 5 8 0 )
NOTICE
■To prevent 12-volt battery discharge
Do not leave the lights on longer than necessary when the hybrid system is off.

366
3-5. Using the interior lights
■Illuminated entry system
The lights automatically turn on/off according to “POWER” switch mode, the pres-
ence of the electronic key, whether the doors are locked/unlocked, and whether
the doors are opened/closed.
■To prevent 12-volt battery discharge
If the interior lights remain on when the door is not fully closed and the interior light
switch (door position on/ off) is on, the li ghts will go off automatically after 20 min-
utes.
■Customization
Settings (e.g. the time elapsed before the lights turn off) can be changed. (Custom-
izable features P. 5 8 0 )
Pe r s o n a l l i g h t s

542
5-2. Steps to take in an emergency
To change “POWER” switch modes: Within 10 seconds of the
buzzer sounding, release the brake pedal and press the
“POWER” switch. Modes can be changed each time the switch is
pressed. ( P. 1 4 8 )
To start the hybrid system: Press the “POWER” switch within 10
seconds of the buzzer sound ing, keeping the brake pedal
depressed.
In the event that the hybrid system still cannot be operated, contact your
Lexus dealer.
■Stopping the hybrid system
In the same method as the normal hybrid system stopping procedure, completely
stop the vehicle and then press the “POWER” switch.
■Replacing the key battery
As the above procedure is a temporary measure, it is recommended that the elec-
tronic key battery be replaced immediately when the battery is depleted.
(  P. 4 5 9 )
■When the electronic key does not work properly
Make sure that the smart access system wi th push-button start has not been deacti-
vated in the customization setting. If it is off, turn the function on.
(Customizable features P. 5 8 0 )

612
Alphabetical index
CareExterior .................................................. 408
Interior ....................................................... 412
Seat belts.................................................. 413
Cargo capacity ......................................248
CD changer (vehicles without navigation system) ............................ 277
CD changer (vehicles with navigation system)*
CD player (vehicles without navigation system) ............................ 277
CD player (vehicles with navigation system)*
Chains .......................................................250
Child restraint system Booster seats, definition ................... 123
Booster seats, installation ................133
Convertible seats, definition .......... 123
Convertible seats, installation....... 130
Front passenger occupant classification system......................... 118
Infant seats, definition......................... 123
Infant seats, installation ..................... 130
Installing CRS with LATCH anchors .................................................128
Installing CRS with seat belts........ 130
Installing CRS with top tether straps ...................................................... 134 Child safety
Airbag precautions .............................. 113
Child restraint system ....................... 123
Child-protectors .................................. 59
How your child should wear the seat belt........................................... 76
Installing child restraints ....................127
Moon roof precautions ......................93
Power window lock switch ..............87
Power window precautions............ 89
Removed electron ic key battery
precautions ....................................... 460
Seat belt extender precautions ...... 79
Seat belt precautions........................... 77
Seat heater precautions.................380
Trunk precautions.................................63
12-volt battery precautions............. 441
Child-protectors...................................... 59
Cleaning Exterior ................................................... 408
Interior....................................................... 412
Seat belts ................................................. 413
Climate control*
Clock (vehicles without navigation system) .............................377
Clock (vehicles with navigation system)*
Coin holder ............................................. 370
Compass .................................................. 396
Condenser .............................................. 436
Console box ........................................... 369C