2012 Lexus HS250h change key battery

56
1-3. Opening, closing and locking the doors
HS250h_U_75050U
●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 6 7
■Customization
Settings (e.g. smart access system with push-button start) can be changed.
(Customizable features →P. 5 8 4 )
■Certification for the smart access system with push-button start
For vehicles sold in the U.S.A.
FCC ID: HYQ14ACX FCC ID: HYQ14ADF
FCC ID: HYQ14AEB FCC ID: HYQ14AEF
FCC ID: HYQ13CZK FCC ID: HYQ13CZL
FCC ID: NI4TMLF8-13
NOTE:
This device complies with Part 15 of the FCC Rules. Operation is subject to the fol-
lowing two conditions: (1) this device may not cause harmful interference, and (2)
this device must accept any interference received, including interference that may
cause undesired operation.
FCC WARNING:
Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
For vehicles sold in Canada
NOTE:
Operation is subject to the following two conditions: (1) this device may not cause
interference, and (2) this device must accept any interference, including interfer-
ence that may cause undesired operation of the device.

59
1-3. Opening, closing and locking the doors
1
Before driving
HS250h_U_75050U
■Pa n i c m o d e
■Security feature
→P. 5 1
■Alarm
Using the wireless remote control to lock the doors will set the alarm system.
(→ P. 1 0 3 )
■Conditions affecting operation
→P. 5 2
■If the wireless remote control does not operate properly
Locking and unlocking the doors, unlocking the trunk: Use the mechanical key.
(→ P. 5 4 4 )
■Electric key battery depletion
→P. 5 5
■When the electric key battery is fully depleted
→P. 4 6 7
■Customization
Settings (e.g. door unlocking function) can be changed.
(Customizable features →P. 5 8 4 ) 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.

92
1-5. Opening and closing the windows and moon roof
HS250h_U_75050U
■Door lock linked window operation
●The power windows can be opened and closed using the mechanical key. *
(→ P. 5 4 4 )
●The power windows can be opened using the wireless remote control. *
(→ P. 5 8 )
*: This setting must be customized 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 4 )
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 8 )
Closing a power window on someone can cause serious injury, and in some
instances, even death.
■Jam protection function
●Never use any part of your body to intentionally activate the jam protection func-
tion.
●The jam protection function may not work if something gets caught just before
the window fully closes.

195
2-3. Operating the lights and windshield wipers
2
When driving
HS250h_U_75050U
■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 automatically 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 4 )
NOTICE
■To prevent 12-volt battery discharge
Do not leave the lights on longer than necessary when the hybrid system is off.

376
3-5. Using the interior lights
HS250h_U_75050U
■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 lights 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 4 )
Personal lights

546
5-2. Steps to take in an emergency
HS250h_U_75050UTo change “POWER” switch modes: Within 10 seconds of the
buzzer sounding, release the brake pedal and press the
“POWER” switch. Modes can be ch
anged each time the switch is
pressed. (→ P. 153)
To start the hybrid system: Press the “POWER” switch within 10
seconds of the buzzer sounding, keeping the brake pedal
depressed.
In the event that the hybrid system still cannot be operated, contact your
Lexus dealer.
■Stopping the hybrid system
Set the parking brake, shift the shift position to P and press the “POWER” switch as
you normally do when stopping the hybrid system. ( →P. 1 5 3 )
■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 6 7 )
■When the electronic key does not work properly
Make sure that the smart access system with 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 4 )

615
Alphabetical index
HS250h_U_75050U
Back-up lightsReplacing light bulbs .........................481
Wattage .................................................568
Battery
Checking ................................................447
If the vehicle has a discharged 12-volt battery .................................. 547
Preparing and checking
before winter.................................... 258
Bluetooth
®* ........................................... 325
Bottle holders ........................................ 383
Brake Fluid .......................................................... 566
Parking brake ........................................ 167
Brake assist ............................................. 238
Break-in tips ............................................. 143
Brightness control Instrument panel light
control ................................................... 170
Care Exterior ..................................................... 416
Interior..................................................... 420
Seat belts ................................................. 421
Cargo capacity ......................................257
CD changer* ..........................................287
CD player* ..............................................287
Chains....................................................... 259
Child restraint system Booster seats, definition................... 126
Booster seats, installation ................130
Convertible seats, definition .......... 126
Convertible seats, installation .......130
Front passenger occupant
classification system ......................... 121 Infant seats, definition .........................126
Infant seats, installation ..................... 130
Installing CRS with LATCH
anchors................................................... 131
Installing CRS with seat belts ........ 133
Installing CRS with top tether straps ......................................................137
Child safety
Airbag precautions .............................. 116
Child restraint system ........................126
Child-protectors ................................... 62
How your child should wear the seat belt .......................................... 79
Installing child restraints................... 130
Moon roof precautions......................96
Power window lock switch ..............90
Power window precautions ............ 92
Removed electronic key battery
precautions....................................... 468
Seat belt extender precautions...... 82
Seat belt precautions ......................... 80
Seat heater precautions................. 390
Trunk precautions.................................66
12-volt battery precautions ...........449
Child-protectors ...................................... 62
Cleaning Exterior..................................................... 416
Interior .....................................................420
Seat belts ..................................................421
Climate control*
Clock* ....................................................... 387
Coin holder ............................................ 380
Compass ..................................................404
Condenser .............................................. 444
Console box ........................................... 379
B
*: For vehicles with a navigation system, refer to “Navigation System Owner’s Manual”.
C