2006 Lexus GS430 change key battery

KEYS AND DOORS
27
STARTING THE ENGINE WHEN THE ELECTRONIC KEY
BATTERY IS DISCHARGED
If the electronic key battery is discharged, the engine can
be started using the following procedure.
1. Unlock the door with the
mechanical key and bring the
electronic key into the vehicle.
G11038
2. While the brake pedal is depressed, hold the ornament side
of the electronic key about 10 mm (0.4 in.) over the engine
switch as shown.
3. Within 5 seconds of the chime sounding, push the engine
switch with the brake pedal depressed to start the engine.
When you push the engine switch with the brake pedal not
depressed at this time, the engine will not start, but it is possible
to select “ACC”, “IG− ON” and “OFF” mode.
If it is not possible to start the engine or change the mode using
this procedure, contact your Lexus dealer. In addition, we recommend that the electronic key battery be
changed as soon as possible.
For vehicles sold in U.S.A.
FCC ID: NI4TMLF1
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
(1) this device may not cause harmful interference,
and (2) this device must accept any interference re-
ceived, including interference that may cause unde-
sired operation.
CAUTION
Changes or modifications not expressly approved by
the party responsible for compliance could void the
user’s authority to operate the equipment.

KEYS AND DOORS
33
Consult the dealer or an experienced radio / TV techni-
cian for help.
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
Operation is subject to the following two conditions: (1)
this device may not cause interference, and (2) this
device must accept any interference, including
interference that may cause undesired operation of the
device.
REPLACING THE BATTERY
When you replace the battery, prepare a lithium battery
CR1632 or equivalent and flathead screwdrivers. However, if
the inner parts are touched or the electronic key is dropped, it
will not function properly. We recommend you to have an
electronic key battery replaced by your Lexus dealer.
CAUTION
Special care should be taken to prevent small children
from swallowing the removed battery or components.
NOTICE
 Do not touch the components in an electronic key
with your hand. It may cause static electricity to
occur, and an electronic key will be broken.
 When replacing the electronic key battery, be careful
not to lose components.
 Replace only with the same or equivalent type
recommended by a Lexus dealer.
 Dispose of used batteries according to the local laws.

KEYS AND DOORS
35
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.
5. After replacing the battery, be sure to return the mechanical
key to its original position.
DOORS
See page 19 for locking the doors with entry function and
page 22 for unlocking them with entry function.
Locking with a mechanical key
G11001
 1 Lock 2Unlock
Turn the mechanical key towards the front of the vehicle
to lock and towards the back to unlock.
The doors lock and unlock simultaneously with the driver’s
door. T urning the mechanical key once will unlock the driver’s
door and twice in succession will unlock all doors
simultaneously.*
NOTE:
*The 2step unlocking function can be changed.
Ask your Lexus dealer for details.

SWITCHES
45
G12002
The automatic light control sensor is on 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 the headlights come on, the lights automatically turn off
about 30 seconds after any of the doors is opened and closed
with the engine switch off.* To turn them on again, select the
engine switch in “IG− ON” mode, 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 electronic
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 engine
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.