key battery Lexus IS F 2011 Using The Bluetooth Audio System /

160
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 “ENGINE START STOP” switch has
been switched to ACCESSORY mode or turned OFF. (The lights turn off
immediately if on the key is pressed after all 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
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.
■Customization that can be configured at Lexus dealer
Settings (e.g. light sensor sensitivity) can be changed.
(Customizable features P. 5 2 8 )
NOTICE
■To prevent battery discharge
Do not leave the lights on longer than necessary when the engine is not running.

Maintenance and care4
365
4-1. Maintenance and careCleaning and protecting the vehicle exterior............. 366
Cleaning and protecting the vehicle interior .............. 369
4-2. Maintenance Maintenance requirements ........................ 372
General maintenance .......... 374
Emission inspection and maintenance (I/M)
programs................................ 377 4-3. Do-it-yourself
maintenance
Do-it-yourself service precautions ........................... 378
Hood ........................................... 381
Positioning a floor jack ......... 382
Engine compartment ........... 384
Tires............................................ 397
Tire inflation pressure........... 408
Wheels ....................................... 412
Air conditioning filter ............ 414
Electronic key battery............ 417
Checking and replacing fuses ......................................... 419
Headlight aim ......................... 433
Light bulbs ................................ 435

417
4-3. Do-it-yourself maintenance
4
Maintenance and care
Electronic key battery
Replace the battery with a new one if it is discharged.
■You will need the following items:
●Flathead screwdriver
● Small Phillips-head sc rewdriver
● Lithium battery (CR1632)
■ Replacing the battery
Take out the mechanical key.
Remove the cover.
Remove the depleted battery.
Insert a new battery with the “+”
terminal facing up.
STEP1
STEP2
STEP3

418
4-3. Do-it-yourself maintenance
■If the electronic key battery is discharged
The following symptoms may occur.
●The smart access system with push-button start and wireless remote control will
not function properly.
●The operational range is reduced.
■Use a CR1632 lithium battery
●Batteries can be purchased at your Lexus dealer, jewelers, or camera stores.
●Replace only with the same or equivalent type recommended by a Lexus dealer.
●Dispose of used batteries according to the local laws.
■When the card key battery needs to be replaced (Canada only)
The battery for the card key is available only at Lexus dealers. Your Lexus dealer
can replace the battery for you.
CAUTION
■Removed battery and other parts
Keep away from children. These parts are small and if swallowed by a child, they can
cause choking. Failure to do so could result in death or serious injury.
NOTICE
■For normal operation after replacing the battery
Observe the following precautions to prevent accidents.
●Always work with dry hands.
Moisture may cause the battery to rust.
●Do not touch or move any other comp onents inside the remote control.
●Do not bend either of the battery terminals.

When trouble arises5
441
5-1. Essential informationEmergency flashers............... 442
If your vehicle needs to be towed ...................................... 443
If you think something is wrong ...................................... 449
Fuel pump shut off system ..................................... 450
Event data recorder ............... 451 5-2. Steps to take in an
emergency
If a warning light turns on or a warning buzzer
sounds... ................................. 453
If a warning message is displayed................................ 463
If you have a flat tire................ 477
If the engine will not start .... 486
If the shift lever cannot be shifted from P ....................... 487
If you lose your keys .............. 488
If the electronic key does not operate properly.......... 489
If the vehicle battery is discharged ............................ 492
If your vehicle overheats ..... 495
If the vehicle becomes stuck........................................ 498
If your vehicle has to be stopped in an
emergency ............................ 499

5
When trouble arises
475
5-2. Steps to take in an emergency
Once(Comes on for 10 sec-onds.)
(Flashing)
Indicates that the
key battery is low.Replace the bat-
tery. ( P. 4 1 7 )

Indicates that the
“ENGINE START
STOP” switch has
been turned
twice to ACCES-
SORY mode
without starting
the engine when
a closed door is
opened.
Press the
“ENGINE START
STOP” switch
while applying the
brakes.

(Flashing)
Indicates that the
steering lock has
not released
within 3 seconds
of pressing the
“ENGINE START
STOP” switch.Press the
“ENGINE START
STOP” switch
again while turn-
ing the steering
wheel with the
brake pedal
depressed.
Interior
buzzerExterior buzzerWa r n i n g m e s s a g eDetailsCorrection
procedure

476
5-2. Steps to take in an emergency
*: If the engine does not start when the electronic key is inside the vehicle, theelectronic key battery may be depleted or there may be difficulties receiving the
signal from the key. ( P. 3 2 )
OnceIndicates that the
electronic key
does not operate
properly.
P. 4 9 0
Once
Interior
buzzerExterior buzzerWa r n i n g m e s s a g eDetailsCorrection
procedure

5
When trouble arises
489
5-2. Steps to take in an emergency
If the electronic key does not operate properly
Locking and unlocking the doors, unlocking the trunk and key linked functions
Doors
Remove the cover on the driver’s
door handle using the mechanical
key (P. 25) in order to perform
the following operations.
Locks all doors
Closes the windows/moon roof
(turn and hold)
Unlocks the door
Turning the key rearward unlocks
the driver's door. Turning the key
once again unlocks the other
doors.
Opens the windows/moon roof
(turn and hold)
Return the cover to the original
position after use.
If communication between the electron ic key and vehicle is interrupted
(  P. 32) or the electronic key cann ot be used because the battery is
depleted, the smart access system with push-button start and wireless
remote control cannot be used. In su ch cases, the doors and trunk can be
opened or the engine can be started by following the procedure below.

5
When trouble arises
491
5-2. Steps to take in an emergency
To change “ENGINE START STOP” switch modes: Within 10
seconds of the buzzer sounding, release the brake pedal and
press the “ENGINE START STOP” switch. Modes can be
changed each time the switch is pressed. ( P. 130)
To start the engine: Press th e “ENGINE START STOP” switch
within 10 seconds after the buzz er sounds, keeping the brake
pedal depressed.
In the event that the engine still cannot be started, contact your Lexus
dealer.
■Stopping the engine
Shift the shift lever to P and press the “ENGINE START STOP” switch as you nor-
mally do when stopping the engine.
■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 depletes.
(  P. 4 1 7 )
STEP3

554
Alphabetical index
Child safetyAirbag precautions.............................. 98
Battery precautions ..............395, 494
Child restraint system....................... 108
Child-protectors ................................... 43
How your child should wear the seat belt .......................................... 63
Installing child restraints .....................112
Moon roof precautions ..................... 79
Power window lock switch...............73
Power window precautions ............ 75
Removed electron ic key battery
precautions ........................................ 418
Seat belt comfort guide ....................... 61
Seat belt extender precautions ..... 65
Seat belt precautions .......................... 64
Seat heater precautions ................. 339
Trunk precautions ................................ 48
Child-protectors ...................................... 43
Cigarette lighter....................................336
Cleaning Exterior ...................................................366
Interior .....................................................369
Seat belts................................................ 370
Clock .......................................................... 331 Coat hooks.............................................. 343
Compass .................................................. 354
Condenser ................................................391
Console box ........................................... 324
Cooling system
Engine overheating .......................... 495
Cornering assist sensors ...................... 181
Cruise control Cruise control ....................................... 166
Dynamic radar cruise control ....... 169
Cup holders ............................................ 326
Curtain shield airbags .............................91
Customizable features ....................... 528
Daytime running light system ........... 159
Defogger Rear window ......................................... 218
Side mirrors............................................ 218
Dimension ............................................... 502
Dinghy towing........................................ 207
Display Dynamic radar cruise control ....... 169
Satellite switch mode........................332
Trip information.................................... 154
Warning message ............................ 463
D