key battery LEXUS LS430 2005 User Guide

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
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.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
101
w275
If the smart key system determines that the battery
voltage is low (2V to 3V) when the ignition is turned off
more than 20 minutes after turned on, the master warning
light flashes, a warning tone sounds and the above
message appears for 5 seconds.
If the above message appears, the battery needs to be
replaced. Although you can replace the battery referring to
“Replacing the battery (Type A)” on page 42, we recommend
you have it replaced by your Lexus dealer as it is easy to be
scratched.
w276
The above message appears when the high mode in the
electronically modulated air suspension is selected.
However, if the system fails , the master warning light
comes on, a warning tone also sounds and the above
message appears.
Although it is no problem to continue driving, have your vehicle
checked by your Lexus dealer as soon as possible.
w285
If the sensor of the Lexus park assist system is
malfunctioning or a cable is broken when the Lexus park
assist system is on, the master warning light comes on, a
warning tone sounds, the malfunctioning sensor flashes
and the above message appears.
The flashing sensor does not operate properly. Although it is
no problem to continue driving, have your vehicle checked by
your Lexus dealer as soon as possible.
w286
If icicles, snowflakes or mud gets on the sensor of the
Lexus park assist system or it is frozen when the Lexus
park assist system is on, the sensor not be able to detect
an obstacle flashes and the above message appears.
Remove the foreign matter or deice the sensor. If the message
does not appear after cleaning, the system is operating
properly.

INTERIOR EQUIPMENT
122
GLOVE BOX
14L240
 1Type A 2Type B 3Unlock 4Lock 5Open
To open the glove box door, pull the lever. To lock the
glove box door, insert the master key and turn it
clockwise.
With the tail lights on, the glove box light will come on when the
glove box door is open.
CAUTION
To reduce the chance of injury in case of an accident or
a sudden stop, always keep the glove box door closed
while driving.
GARAGE DOOR OPENER
The garage door opener (\b Universal
Transceiver) is manufactured under license from
HomeLink
\b and can be programmed to operate garage
doors, gates, entry doors, door locks, home lighting
systems, and security systems, etc.
(a) Programming the HomeLink\b
14L070
 1 Buttons 2Indicator light
The HomeLink
\b in your vehicle has 3 buttons and you can
store one program for each button.
To ensure correct programming into the HomeLink
\b, install a
new battery in the hand −held transmitter prior to programming.

OCCUPANT RESTRAINT SYSTEMS
224When the registration is completed, one beep sounds. If the
key has already been registered, the previous memory will be
erased. If the same driving position profile for the same key is
registered
in another button, that memory will also be erased.
CAUTION
Do not push the “LOCK” button any longer than 2 or 3
seconds. Pushing the button longer activates an alarm.
For details, see page 40.
Erasing the previous registration memory
The driver’s door must be closed with the ignition switch in the
“OFF” position.
1. Keep the wireless remote control key in which you want
to cancel the registrati on in possession and push the
“SET” button.
2. Push the “LOCK” or “UNLOCK” button on the wireless
remote control key for about one second with the “SET”
button held down.
When the previous key ID memory is erased, two beeps
sound.
REAR SEAT POSITION MEMORY SYSTEM
A microcomputer will memorize the position of the rear seats
and the height of the rear head restraints.
Recording the rear seat position in the computer’s memory can
only be done when the ignition switch is in the “ON” position.
Setting the rear seat position
16L301a
1. Adjust the rear seat position and the height of the head
restraint of the rear seat to the desired position.
2. Keep pushing the “SET” button until a beep sounds.
The beep sound means that the position has been memorized.
The memory will be erased when the battery is removed for
inspection or service.

STARTING AND DRIVING
300“START” Starter motor on. The ignition switch will
return to the “ON” position when released.
For starting tips, see page 304.
“ON” Engine on and all accessories on.
This is the normal driving position.
NOTICE
Do not leave the ignition switch in the “ON” position if
the engine is not running. The battery will discharge
and the electronic ignition system could be damaged.
“ACC” Accessories such as the radio operate, but the
engine is off.
31L347
“LOCK” Engine is off and the steering wheel is locked.
When
you leave your vehicle, be sure to turn the ignition switch
to the “LOCK” position and carry the smart key.
 If you open the driver’s door without returning the ignition
switch to the “LOCK” position, beeps keep sounding while
the door is opened.
 If you close a door to leave your vehicle while carrying a key
on which the ignition switch has not been returned to the
“LOCK” position, “Key is not Detected” appears on the
multi−information display, a warning tone sounds inside and
beeps sound outside.
 If the selector lever is in a position other than “P”, you cannot
turn the ignition switch to the “LOCK” position. At this time,
when you open the driver’s door and are going to get out of
the vehicle, “Shift to P Range” appears on the
multi−information display and a warning tone sounds inside.

STARTING AND DRIVING
303
“START” Starter motor on. The key will return to the
“ON” position when released.
For starting tips, see page 304.
“ON” Engine on and all accessories on.
This is the normal driving position.
NOTICE
Do not leave the key in the “ON” position if the engine
is not running. The battery will discharge and the
electronic ignition system could be damaged.
“ACC” Accessories such as the radio operate, but the
engine is off.
If you leave the key in the “ACC” or “LOCK” position and open
the driver’s door, a buzzer will remind you to remove the key.*
NOTE:
* The volume or interval of beep sound can be changed.
Ask your Lexus dealer for details.
31L349
 1 Type A 2Type B
“LOCK” Engine is off and the steering wheel is locked.
The ignition key can be removed only at this position.
To turn the ignition switch from “ACC” to the “LOCK” position,\
you must put the transmission selector lever in the “P” position.
Once you remove the key, the engine immobilizer system is
automatically set. See “Engine immobilizer system” on page
17.
If, in an emergency, you must turn the engine off while the
vehicle is moving, turn the key only to “ACC”.

IN CASE OF AN EMERGENCY
400
IF YOUR ENGINE STALLS WHILEDRIVING
If your engine stalls while driving . . .
1. Reduce your speed gradually, keeping a straight line. Move
cautiously off the road to a safe place.
2. Turn on your emergency flashers.
3. Turn the ignition switch to “ACC” or “LOCK”, and try starting
the engine again.
If the engine will not start, see “If your vehicle will not start”\
.
CAUTION
If the engine is not running, the power assist for the
brakes and steering will not work, so steering and
braking will be much harder than usual.
IF YOUR VEHICLE WILL NOT START
(a) Simple checks
Before making these checks, make sure you have followed the
correct starting procedure instructions in “How to start the
engine” on page 304 and that you have sufficient fuel. Since
your vehicle is equipped with the engine immobilizer system,
also check whether the other keys will start the engine. If they
work, your key may be broken. Have the key checked at your
Lexus dealer. If none of your keys work, there may be a
malfunction in the immobilizer system. Call your Lexus dealer.
See “Keys” on page 10.
If the engine is not turning over or is turning over too
slowly
1. Check that the battery terminals are tight and clean.
2. If the battery terminals are O.K., switch on the interior light.
3. If the light is out, dim or goes out when the starter is cranked,
the battery is discharged. You may try jump starting. See “(c)
Jump starting” for further instruction.
If the light is O.K., but the engine still will not start, it needs
adjustment or repair. Call a Lexus dealer, Roadside
Assistance or Customer Service Assistance. (See
“Foreword”.)

ENGINE
446318.– COOLING SYSTEM
Capacity
9.5 L (10.0 qt., 8.4 lmp.qt.)
Coolant type“Toyota Super Long Life Coolant” or similar high quality ethylene glyco\
l
based non −silicate, non −amine, non −nitrite, and non −borate coolant
with long− life hybrid organic acid technology (Coolant with long −life
hybrid organic acid technology is a combination of low phosphates and
organic acids.)
Do not use plain water alone.
NOTE:
“Toyota Super Long Life Coolant” is used in your Lexus vehicle at factory fil\
l. In order to avoid technical problems, only use “Toyota
Super Long Life Coolant” or similar high quality ethylene glycol based non −silicate, non −amine, non −nitrite, and non −borate coolant
with long−life hybrid organic acid technology. (Coolant with long −life hybrid organic acid technology is a combination of low
phosphates and organic acids.) Do not use plain water alone. Please contact you\
r Lexus dealer for further details.
– IGNITION SYSTEM319.
Spark plug – Make DENSO NGK
– Gap
SK20R11
IFR6A11
1.1 mm (0.043 in.)
– ELECTRICAL SYSTEM320.
Battery – Open voltage at 20 C (68F):
– Charging rates
12.7 V Fully charged
12.3 V Half charged
11.9 V Discharged
[Voltage that is checked 20 minutes after the key is removed with all the
lights turned off]
5A max.