change key battery Lexus IS250C 2010 Owner's Manual

41
1-2. Opening, closing and locking the doors and trunk
1
Before driving
10_IS250C/350C_U
■Pa n i c m o d e
■Electronic key battery depletion
→P. 3 4
■Security feature
→P. 3 6
■When the electronic key battery is fully depleted
→P. 4 2 5
■Conditions affecting operation
→P. 3 2
■Customization that can be configured at Lexus dealer
Settings (e.g. trunk unlocking function) can be changed.
(Customizable features →P. 5 5 7 ) When is pushed for longer than about
one second, an alarm will sound for about 60
seconds and the vehicle lights will flash to
deter any person from trying to break into or
damage your vehicle.
To stop the alarm, push any button on the
wireless remote control.

175
2-3. Operating the lights and windshield wipers
2
When driving
10_IS250C/350C_U
■Automatic light off system
●When the headlights comes on: The headlights and tail lights turn off 30 sec-
onds after a door is opened and closed if the “ENGINE START STOP” switch
has been switched to ACCESSORY mode or turned OFF. (The light turns off
immediately if on the key is pressed after both side doors are locked.)
●When only the tail lights come on: The tail lights turn off automatically if the
“ENGINE START STOP” switch is switched to ACCESSORY mode or turned
OFF and driver’s door is opened.
To turn the lights on again, switch to IGNITION ON mode, or turn the light switch
off once and then back to or
.
■Automatic headlight leveling system (vehicles with discharge headlights)
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 “AFS OFF” flashes... (vehicles with discharge headlights)
It may indicate a malfunction in the system. Contact your Lexus dealer.
■Customization that can be configured at Lexus dealer
Settings (e.g. light sensor sensitivity) can be changed.
(Customizable features →P. 5 5 7 )
NOTICE
■To prevent battery discharge
Do not leave the lights on longer than necessary when the engine is not running.

573
Alphabetical index
10_IS250C/350C_U
Back-up lightsWattage ................................................... 541
Battery Checking ............................................... 402
If the vehicle has a discharged battery..................................................506
Preparing and checking before winter .................................... 220
Bluetooth
® audio ................................ 289
Bluetooth® phone ............................... 307
Brake Fluid ..........................................................400
Parking brake ........................................ 157
Brake assist ............................................. 204
Care
Exterior ....................................................374
Interior......................................................377
Seat belts ............................................... 378
Cargo capacity ....................................... 216
Cargo hooks .......................................... 359
CD changer ........................................... 250
CD player................................................ 250
Chains....................................................... 220
Child restraint system Booster seats, definition.....................116
Booster seats, installation ................ 123
Convertible seats, definition ............116
Convertible seats, installation ....... 123
Front passenger occupant
classification system ...........................111
Infant seats, definition ..........................116
Infant seats, installation...................... 123
Installing CRS with LATCH
anchors ................................................... 121
Installing CRS with seat belts ........ 123 Installing CRS with top straps........126
Child safety
Airbag precautions ............................ 106
Battery precautions ............ 404, 508
Child restraint system ......................... 116
How your child should wear the seat belt ..........................................68
Installing child restraints................... 120
Power window lock switch .............. 78
Power window precautions ........... 80
Removed electronic key battery precautions........................................426
Seat belt guide........................................66
Seat belt extender precautions...... 70
Seat belt precautions ..........................69
Seat heater precautions..................357
Trunk precautions................................. 49
Cigarette lighter....................................353
Cleaning Exterior.................................................... 374
Interior ..................................................... 377
Seat belts ................................................378
Clock .........................................................348
Compass ..................................................368
Condenser ............................................. 400
Console box ............................................ 341
Cooling system Engine overheating.......................... 509
Cornering assist sensors .................... 198
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