1998 Lexus LS400 engine

KEYS AND DOORS
8
KEYS
11L025-3
1
Master key (black) The master key works in every lock.
For your Lexus dealer to make you a new key with builtin
transponder chip, your dealer will need it.
2
Subkey (gray) The subkey will not open the trunk, trunk
main switch and the glovebox.
3
Key number plate Keep the plate in a safe place such as
your wallet, not in the vehicle.
The master key and subkey each have a transponder chip in their key
head which is very important for the immobiliser system function,
so be careful not to lose these keys. If you make your own duplicate
key, you will not be able to cancel the system or start the engine.
To protect things locked in the trunk or glovebox when you have
your vehicle parked, leave the subkey with the attendant.Since the doors and trunk lid can be locked without a key, you should
always carry a spare master key in case you accidentally lock your
keys inside the vehicle.
If you should lose your keys or if you need additional keys,
duplicates can be made by a Lexus dealer using the key number.
You should also put a copy of the key number with your important
papers.
11L003
Since a transponder chip is not built in this flat key, you cannot
start the engine with this key. Use this key to release the lock in
case you accidentally lock your keys inside the vehicle or trunk.
Insert your flat key in its key case as shown. We recommend that you
always carry this with you for emergency use. Do not leave it in your
vehicle.

KEYS AND DOORS
9
NOTICE
Do not let the key case become bent as the key may fall out or
become bent also.
The flat key is designed for emergency use only.
11L021-2
NOTICE
When using a key containing a transponder chip, observe the
following precautions:
When starting the engine, do not use the key with a key ring
resting on the key grip and do not press the key ring against
the key grip. Otherwise the engine may not start, or may stop
soon after it starts.
11L022-2
When starting the engine, do not use the key in contact with
another transponder key (including keys of other vehicles)
and do not press another key plate against the key grip.
Otherwise the engine may not start, or may stop soon after it
starts.

KEYS AND DOORS
10
11L023-3
Do not bend the key grip.
Do not cover the key grip with any material that cuts off
electromagnetic waves.
Do not knock the key hard against other objects.
Do not leave the key exposed to high temperatures for a long
period, such as on the dashboard and hood under the direct
sunlight.
Do not put the key in water or wash it in an ultrasonic washer.
Do not use the key with electromagnetic materials.
ENGINE IMMOBILISER SYSTEM
11L0243
The engine immobiliser system is a theft prevention system.
When you insert the key in the ignition switch, the transponder
chip in the key’s head transmits an electronic code to the vehicle.
The engine will start, only when the electronic code in the chip
corresponds to the registered ID code for the vehicle.
The system is automatically set when the key is removed from the
ignition switch. At this time, the security indicator light at the
bottom of the instrument cluster flashes. When you insert the key in
the ignition switch, the security indicator light goes out and the
system is canceled automatically, which enables the engine to start.
For your Lexus dealer to make you a new key with builtin
transponder chip, your dealer will need your key number and master
key. However, there is a limit to the number of additional keys your
Lexus dealer can make for you.

KEYS AND DOORS
11 If you make your own duplicate key, you will not be able to cancel
the system or start the engine.
For vehicles sold in U.S.A.
FCC ID: MOZ RI4ATY
MADE IN JAPAN
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 received, including
interference that may cause undesired operation.
CAUTION
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
This device complies with RSS210 of Industry and
Science 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.
WIRELESS REMOTE CONTROL*
11L027
1
Locking the doors and sounding an alarm
2
Unlocking the doors
3
Indicator light
4
Unlocking the trunk lid
NOTE: *This feature can be set inoperative as vehicle theft
deterrent measure in case of the loss of the wireless remote
control key. Ask your Lexus dealer for details.
When you operate any button on the key, push it slowly and surely.
The operational range of the wireless remote control is
approximately 1 meter (3 feet). The effective range may vary with
different conditions. To activate the wireless remote control without
fail, do it approximately 1 meter (3 feet) from your Lexus.

SWITCHES
23 Daytime Running Light System (Canada only)
The headlights turn on 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.
Under the daytime running light system, the headlights turn on at
reduced intensity. Twist the knob to the second clickstop to turn to
full intensity for driving at night.
When setting the knob to the third clickstop (”AUTO”), the
headlights will automatically 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.
Automatic headlight leveling system (Vehicles with
discharge headlight only)
As the headlight beam level is always maintained automatically at
the proper level in all loading conditions, your headlights do not
dazzle other road users.
If this system fails, the multi information display shows a message
”HEADLIGHT LEVELING”. If this occurs, have your vehicle
checked by Lexus dealer.

SWITCHES
31
CAUTION
To avoid serious personal injury, you must do the following.
Always make sure the head, hands and other parts of the
body of all occupants are kept completely inside the vehicle
before you close the power windows. If someone’s neck,
head or hands gets caught in a closing window, it could
result in a serious injury. When anyone closes the power
windows, be sure that they operate the windows safely.
When small children are in the vehicle, never let them use
the power window switches without supervision. Use the
window lock switch to prevent them from making
unexpected use of the switches.
Never leave small children alone in the vehicle, especially
with the ignition key still inserted. They could use the
power window switches and get trapped in a window.
Unattended children can become involved in serious
accidents.
EMERGENCY FLASHER SWITCH
12L0121
To turn on the emergency flashers, push the switch.
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
32
SEAT HEATER SWITCHES
12L0132
The seat heater has two switches one marked ”L” (for the left
seat) and the other marked ”R” (for the right seat). Push these
switches to turn the respective seat heater on, and push the
switches again to turn them off.
The ignition key must be in the ”ON” position.
CAUTION
Occupants must use caution when operating the seat heater
because it may make them feel too hot or cause burns at low
temperatures (erythema, varicella). Use extra caution for;
Baby, small child, elderly person, sick person or
handicapped person
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 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 discharging, turn the
switches on when the engine is running.

SECTION 1 3
33
INSTRUMENTS AND CONTROLS
Gauges, meters and service reminder
indicators
Fuel gauge 34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine coolant temperature gauge 34. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tachometer 35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Odometer and trip meter 36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service reminder indicators and warning buzzers 36. . . . . . . . . . . . . . . . .
Multi information display 41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Instrument panel light control 46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .