2005 LEXUS LS430 battery

KEYS AND DOORS
44
NOTICE
Make sure the positive side and negative side of the
battery are faced correctly.
 Do not replace the battery with wet hands. Water may
cause unexpected rust.
 Do not touch or move any components inside the
transmitter, or it may interfere with proper operation.
 Be careful not to bend the electrode when inserting
the battery and that dust or oils do not adhere to the
inside of the module.
6. Install the battery base into the module.
NOTICE
Take care not to damage or bend the battery base when
installing.
7. Install the module into the main frame.
8. Install the cover back on the side of the key by sliding it using
your finger.
9. When pushing any switch on the wireless key, make sure
the indicator light comes on.
Replacing the battery (Type B)
When you replace the battery, prepare a lithium battery
CR1616 or equivalent and a special screwdriver.
CAUTION
Special care should be taken to prevent small children
from swallowing the removed battery or components.
NOTICE
 When replacing the battery, be c areful not to lose the
components, screws and Oring.
 Replace only with the same or equivalent type
recommended by a Lexus dealer.
 Dispose of used batteries according to the local laws.
11L0281
1. Remove the screw, and then the cover while pushing it in the

KEYS AND DOORS
45
arrow direction.
11L0291
2. Remove the module from the key frame.
11L0301
3. Remove the 2 screws to take out the lid of the module.
4. Take out the discharged battery and put a new battery with
the positive side up.
NOTICE

Make sure the positive side and negative side of the
battery are faced correctly.
 Do not replace the battery with wet hands. Water may
cause unexpected rust.
 Do not touch or move any components inside the
transmitter, or it may interfere with proper operation.
 Be careful not to bend the electrode when inserting
the battery and that dust or oils do not adhere to the
inside of the module.
 Take care not to lose the screws and Oring.
5. Install the lid with the 2 screws.
NOTICE
Take care not to damage or bend the Oring when
installing.
6. Install the module into the key frame and secure the cover
with the screw.
7. When pushing any switch on the wireless key, make sure
the indicator light comes on.

KEYS AND DOORS
50
THEFT DETERRENT SYSTEM
17L013
To deter theft of the vehicle, this system is designed to
sound an alarm if any of the doors, trunk or hood is
forcibly unlocked or opened or the battery terminal is
disconnected and then reconnected while the vehicle is
locked.
The alarm blows the horn intermittently, flashes the headlights,
tail lights, turn signal lights and other exterior lights. When the
interior light switch is in the “DOOR” position, the interior lights
also turn on.
After the alarm is activated, when you unlock any door or the
trunk using an ignition key or wireless remote control or smart
key system, the tail lights turn on for about 2 seconds to inform
you that the system was activated.
17L021
 Security indicator light
Setting the system
In the case of the smart key system:
1. Turn the ignition switch to the “LOCK” position.
The engine immobilizer system causes to the indicator light to
flash.
2. Close and lock all the doors, trunk and hood using an
ignition key or wireless remote control or smart key
system.
If you lock them with wireless remote control or smart key
system, the turn signals flash once.*
NOTE:
* The turn signals can be set not to flash.
Ask your Lexus dealer for details.

KEYS AND DOORS
52
Activating the system
The alarm sounds for 60 seconds if any of the following are
operated:
Unlocking any door or trunk without using an ignition key,
wireless remote control or smart key system.
 Opening the hood forcibly.
 Reconnecting the battery.
 Hot− wiring the ignition.
If any door is unlocked and the ignition key is not in the ignition
switch during the alarm sounding, its door is automatically
locked.
To stop the alarm: Use either of the following methods.
 Unlock the door or trunk using an ignition key or wireless
remote control or smart key system.
 Turn the ignition switch on.
Testing the system
1. Open all the windows.
2. Set the system as described above.
The doors should be locked with an ignition key, wireless
remote control or smart key system. Be sure to wait until the
indicator light starts flashing.
3. Unlock one of the doors from the inside through one of
the opened windows.
The system should activate the alarm.
4. Unlock any of the doors with an ignition key, wireless
remote control or smart key system to cancel the system.
5. Repeat this operation for the other doors, trunk and
hood.
When testing the hood, also check that the system is activated
when the battery terminal is disconnected and then
reconnected.
If the system does not work properly, have it checked by your
Lexus dealer.
NOTICE
When disconnecting the battery, be sure to cancel the
theft deterrent system. Otherwise, the system could
activate an alarm and lock the unlocked door(s)
automatically.

SWITCHES
55
12L054b
The automatic light control sensor is on the top center of the
instrument panel.
Do not place anything on the instrument panel, and/or do not
affix anything on the windshield to block this sensor.
When you turn on the headlights, the lights automatically turn
off about 30 seconds after any of the doors is opened and
closed with the ignition switch turned to the “ACC” or “LOCK”\
position.* To turn them on again, turn the ignition switch to the
“ON” position, or turn the headlight switch off and then twist the
knob until the first or second clickstop. If you are going to park
for over one week, make sure the headlight switch is off.
When the headlight switch is on with all the doors locked and
the trunk closed, pushing the “LOCK” button on the wireless
remote control key turns off the headlights.
NOTE:
* The time before turning off the lights can be changed.
Ask your Lexus dealer for details. Daytime Running Light System
The headlights turn on at reduced intensity when the parking
brake is released with the engine started, even with the light
switch in the “OFF” position. They will not go off until the
ignition switch is turned off.
To turn on the other exterior lights and instrument panel lights,
twist the knob to the first clickstop.
Twist
the knob to the second clickstop to turn on the headlights
to full intensity for driving at night.
When setting the knob to the third clickstop (“AUTO”), the
headlights will automatic ally adjust to full intensity and/or turn
on the other lights depending on the darkness of the
surroundings. Likewise, as the surroundings become brighter,
the headlights will turn to reduced intensity, ultimately turning
off the other lights.
NOTICE
To prevent the battery from being discharged, do not
leave the lights on longer than necessary when the
engine is not running.

SWITCHES
64The thin heater wires on the inside of the rear window and the
heater
panels in the outside rear view mirrors will quickly clear
the surface. Keep your hands off the mirror faces when the
switch is on. An indicator light is on when the defogger is
operating.
The system will automatically shut off when the defogger has
operated about 15 minutes.
CAUTION
Since the mirror surfaces can get hot, do not touch them
when the switch is on.
If further defrosting or defogging is desired, simply actuate the
switch again. When the surface has cleared, push the switch
once again to turn the defogger off. Continuous use may cause
the battery to discharge, especially during stop− and−go
driving. The defogger is not designed to dry rain water or to
melt snow.
If the outside rear view mirrors are heavily coated with ice, use
a spray de −icer before operating the switch.
NOTICE
 When cleaning the inside of the rear window, be
careful not to scratch or damage the heater wires or
connectors.
 To prevent the battery from being discharged, turn
the switch off when the engine is not running.
POWER WINDOW SWITCHES
12L248
 1
For driver’s window
2For front passenger’s window
3For left rear window
4For right rear window
To raise or lower the windows, use the switch on each
door. The passengers’ windows can also be controlled by
the switches on the driver’s door.
The power windows work when the ignition switch is in the
“ON” position.
Retained accessory power: Even if the ignition switch is
turned to the “ACC” or “LOCK” position with all the doors
closed, the window can be operated until any of the doors is
opened (or for about 45 seconds).

SWITCHES
68
EMERGENCY FLASHER SWITCH
12L251
Vehicles with navigation system
12L252
Vehicles without navigation system
To turn on the emergency flashers, push the switch. To
turn them off, push the switch again. All the turn signal lights will flash. The emergency flashers will
work with the engine running or off and with or without the
ignition key.
Turn on the emergency flashers to warn other drivers if you
must stop your vehicle where it might be a traffic hazard.
Always pull your vehicle as far off the road as possible.
The turn signal light switch will not work when the emergency
flashers are in operation.
NOTICE
To prevent the battery from being discharged, do not
leave the switch on longer than necessary when the
engine is not running.

SWITCHES
70
CAUTION
Occupants must use caution when operating the seat
heater because they may experience minor burns even
at low temperatures. Use extra caution for;
Babies, small children, elderly persons, sick persons
or persons with physical disabilities
 Persons who have delicate skin
 Persons who are exhausted
 Persons who have taken alcohol or drugs which
induce sleep (sleeping drug, cold remedy, etc.).
To prevent the seat from overheating, do not use the
seat heater with a blanket, cushion, or other insulating
objects which cover the seat.
NOTICE
 Do not put unevenly weighted objects on the seat and
do not stick sharp objects (needles, nails, etc.) into
the seat.
 When cleaning the seats, do not use organic
substances (paint thinner, benzine, alcohol,
gasoline, etc.). They may damage the heater and seat
surface.
 To prevent the battery from being discharged, turn
the switches off when the engine is not running.