2009 Lexus IS F change key battery

36
1-2. Opening, closing and locking the doors and trunk
08_IS F_U_(L/O_0808)
■When the electronic key battery is fully depleted
→P. 3 2 0
■Conditions affecting operation
→P. 2 8
■Customization that can be configured at Lexus dealer
Settings (e.g. trunk unlocking function) can be changed. (Customizable features
→P. 4 2 8 )
■Certification for wireless remote control
For vehicles sold in the U.S.A.
FCC ID: NI4TMLF-1
FCC ID: HYQ14AAB
FCC ID: HYQ14ABB
FCC ID: HYQ13BZH
FCC ID: HYQ14ABK
FCC ID: HYQ14ABS
FCC ID: HYQ13BZW
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.

144
2-3. Operating the lights and windshield wipers
08_IS F_U_(L/O_0808)
■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 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...
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. 4 2 8 )
NOTICE
■To prevent battery discharge
Do not leave the lights on longer than necessary when the engine is not running.

5
When trouble arises
393
5-2. Steps to take in an emergency
08_IS F_U_(L/O_0808)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. 1 1 6 )
To start the engine: Press the “ENGINE START STOP” switch
within 10 seconds after the buzzer 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. 3 2 0 )
STEP3

443
Alphabetical index
08_IS F_U_(L/O_0808)
Back-up lightsWattage ................................................... 412
Battery Checking ............................................... 296
If the vehicle has discharged battery.................................................. 394
Preparing and checking before winter ......................................184
Bottle holders .........................................236
Brake Fluid .......................................................... 294
Parking brake ........................................ 129
Brake assist ............................................... 169
Care Exterior ................................................... 268
Interior....................................................... 271
Seat belts ................................................ 272
Cargo capacity ...................................... 180
Cargo hooks .......................................... 253
CD changer ........................................... 209
CD player................................................ 209
Chains......................................................... 184 Child restraint system
Booster seats, definition .................... 94
Booster seats, installation ...............100
Convertible seats, definition ............ 94
Convertible seats, installation .......100
Front passenger occupant
classification system .........................89
Infant seats, definition .......................... 94
Infant seats, installation .....................100
Installing CRS with lower
anchorages...........................................99
Installing CRS with seat belts ........ 100
Installing CRS with top straps....... 104
Child safety
Airbag precautions ..............................84
Battery precautions ..............297, 396
Child restraint system ......................... 94
Child-protectors ...................................38
How your child should wear the seat belt ..........................................55
Installing child restraints.....................98
Moon roof precautions...................... 67
Power window lock switch .............. 63
Power window precautions ............ 64
Removed electronic key battery precautions..........................................321
Seat belt comfort guide ..................... 53
Seat belt extender precautions...... 57
Seat belt precautions ..........................56
Seat heater precautions.................. 247
Trunk precautions................................. 43B
C