1998 Lexus LS400 key battery

COMFORT ADJUSTMENT
114The beep sound means that the positions are recorded in the
computer ’s memory.
By repeating these two steps and pressing the remaining button, the
driving position for another driver can be recorded.
To set a new memorized position, select the desired position and
perform step 2. The previous memory will be erased and the new
position will be set.
To make only slight changes to an already memorized position, the
easiest way is to first activate the memorized position, then make the
desired changes and perform step 2 above.
Activating a memorized position
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When you push button ”1” or ”2”, the driving position will be
automatically adjusted to the position recorded for that button.Conditions for memorized position activation
Ignition key ”ON” and shift lever in ”P” position.
All parts of the memorized positions can be activated.
However, if the brake pedal is being depressed, the seat position
will not change.
Key not in ignition switch and within 30 seconds of opening
driver’s door.
The memorized position can be activated, except for the tilt and
telescopic steering.
If any driving position memory switch is pushed while one of the
memorized driving position profiles is being activated, the operation
will stop.
To activate the system, push the desired button (”1” or ”2”) again.
The driving position memory control system cannot be operated
while the vehicle is moving.
If the vehicle’s battery is disconnected, the computer’s memory will
be erased and the memorized positions will have to be set again.
CAUTION
Do not start the vehicle while the adjustments are being
made.
Take care not to select the wrong button, or the seat could
strike the rear passenger or hit your body against the
steering wheel. If this happens, you can stop the movement
by pressing another driving position memory switch, or
depressing the brake pedal.

THEFT DETERRENT
117
THEFT DETERRENT SYSTEM
To deter theft of the vehicle, this system is designed to give an
alarm if any of the doors, trunk or hood is forcibly unlocked or
the battery terminal is disconnected and then reconnected while
the vehicle is locked.*
NOTE: *The system operating condition can be changed. Ask
your Lexus dealer for details.
The alarm blows the horn intermittently and flashes the headlights,
tail lights and other exterior lights.
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Setting the system
1. Turn the ignition key to the ”LOCK” position and remove it.
2. Close and lock all the doors, trunk and hood using an ignition
key or wireless remote control.If you lock them with wireless remote control, the turn signals flash
once.* If you do not want to make them flash, consult with your
Lexus dealer.
NOTE: *The turn signals can be set not to flash. Ask your Lexus
dealer for details.
The indicator light will come on when all the doors, trunk and hood
are closed and locked.
3. After 30 seconds, the indicator flashes and the system is set.
Cancelling the system
When you unlock any door or trunk using an ignition key or
wireless remote control, the system is cancelled.
If you unlock any door or trunk with wireless remote control, the turn
signals flash twice.* If you do not want to make them flash, consult
with your Lexus dealer.
NOTE: *The turn signals can be set not to flash. Ask your Lexus
dealer for details.
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 or
wireless remote control.
Opening the hood forcibly.
Reconnecting the battery.

THEFT DETERRENT
118If 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.
Turn the ignition switch on.
Testing the system
1. Open all the windows.
2. Set the system as described above.
The front doors should be locked with the ignition key or wireless
remote control. Be sure to wait until the indicator light starts
flashing.
3. Unlock one of the doors from the inside.
The system should activate the alarm.
4. Unlock any of the doors with a key or the wireless remote
control to cancel the system.
5. Repeat this operation for the other doors 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
Disconnecting the battery may result in the erasure of
information you have set in the computer memory. After
reconnecting the battery, check that the memorized data has
been retained. If it has been erased, input it into the computer
once more.

AIR CONDITIONING AND AUDIO
121
AUTOMATIC AIR CONDITIONING CONTROLS
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The automatic air conditioning automatically maintains the set
temperature.
This air conditioning features automatic fan speed and air flow
control which automatically selects the most suitable fan speed
and air flow to control the temperature. The ignition key must be
in the ”ON” position.NOTICE
To prevent the battery from being discharged, do not leave the air
conditioning on longer than necessary when the engine is not
running.

AIR CONDITIONING AND AUDIO
134
Using your audio system: some basics
This section describes some of the basic features of the Lexus audio
system. Some information may not pertain to your system.
Your audio system works when the ignition key is in the ”ACC” or
”ON” position.
NOTICE
To prevent the battery from being discharged, do not leave the
car audio on longer than necessary when the engine is not
running.
(a) Turning the system on and off
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Push this knob to turn the audio system on and off. Turn this
knob to adjust the volume.
The system turns on in the last mode used.
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Push ”AM”, ”FM1/2”, ”TAPE” or ”CD” to turn on that mode.
The selected mode turns on directly.
Push these buttons if you want to switch from one mode to another.
If the tape or disc is not set, the cassette player or compact disc player
does not turn on.
You can turn off the cassette player by ejecting the cassette tape. If
the audio system was previously off, then the entire audio system
will be turned off when you eject the cassette tape. If another
function was previously playing, it will come on again.

STARTING AND DRIVING
157
BEFORE STARTING THE ENGINE
1. Check the area around the vehicle before entering it.
2. Adjust seat position, seatback angle, head restraint height and
steering wheel angle.
3. Adjust inside and outside rear view mirrors.
4. Lock all doors.
5. Fasten seat belts.
Remember to check that the service reminder indicators function
when turning the key to ”ON”, and check the fuel gauge to see that
you have sufficient fuel.
IGNITION SWITCH WITH
STEERING LOCK
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”START” Starter motor on. The key will return to the ”ON”
position when released.
For starting tips, see page 159.
”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/distributor 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

IN CASE OF AN EMERGENCY
193
IF YOUR ENGINE STALLS WHILE
DRIVING
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. 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 159 and that you have sufficient fuel. Since your vehicle is
equipped with the engine immobiliser 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, the system is possibly broken. Call your Lexus dealer.
See ”Keys” on page 8.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”.)
NOTICE
Do not pull or pushstart the vehicle. It may damage the
vehicle or cause a collision when the engine starts. Also the
threeway catalytic converter may overheat and become a fire
hazard.
If the engine turns over at its normal speed but will not start
1. The engine may be flooded because of repeated cranking. See
”(b) Starting a flooded engine” for further instructions.
2. If the engine still will not start, it needs adjustment or repair. Call
a Lexus dealer, Roadside Assistance or Customer Service
Assistance. (See ”Foreword”.)

IN CASE OF AN EMERGENCY
194
(b) Starting a flooded engine
If the engine will not start, your engine may be flooded because
of repeated cranking.
If this happens, turn the key to ”START” with the accelerator pedal
held down. Continue this operation for 30 seconds and then stop
cranking. Then try starting the engine with your foot off the
accelerator pedal.
If the engine does not start after 30 seconds of cranking, release the
key, wait a few minutes and try again.
If the engine still will not start, it needs adjustment or repair. Call a
Lexus dealer. Roadside Assistance or Customer Service Assistance.
(See ”Foreword”.)
NOTICE
Do not crank for more than 30 seconds at a time. This may
overheat the starter and wiring systems.
(c) Jump starting
To avoid serious personal injury and damage to your vehicle
which might result from battery explosion, acid burns, electrical
burns, or damaged electronic components, these instructions
must be followed precisely.
If you are unsure about how to follow this procedure, we strongly
recommend that you seek help from your Lexus dealer, Roadside
Assistance or Customer Service Assistance. (See ”Foreword”.).
CAUTION
Batteries contain sulfuric acid which is poisonous and
corrosive. Wear protective safety glasses when jump
starting, and avoid spilling acid on your skin, clothing, or
vehicle.
If you should accidentally get acid on yourself or in your
eyes, remove any contaminated clothing and flush the
affected area with water immediately. Then get immediate
medical attention. If possible, continue to apply water with
a sponge or cloth while en route to the medical office.
The gas normally produced by a battery will explode if a
flame or spark is brought near. Use only standardized
jumper cables and do not smoke or light a match while
jump starting.
NOTICE
The battery used for boosting must be 12 V. Do not jump start
unless you are sure that the booster battery is correct.