1999 Lexus LS400 air condition

AIR CONDITIONING AND AUDIO
264
Car audio system operating hints
NOTICE
To ensure the correct audio system operation:
Be careful not to spill beverages over the audiosystem.
Do not put anything other than a cassette tapeor CD magazine into the cassette tape slot or
CD changer.
The use of cellular phone inside or near thevehicle may cause a noise from the speakers of
the audio system which you are listening to. However, this does not indicate a malfunction.
Radio reception
Usually, the problem with radio reception does not mean
there is a problem with your radio ± it is just the normal
result of conditions outside the vehicle.
For example, nearby buildings and terrain can interfere
with FM reception. Power lines or telephone wires can
interfere with AM signals. And of course, radio signals
have a limited range, and the farther you are from a
station, the weaker its signal will be. In addition,
reception conditions change constantly as your vehicle
moves.
Here are some common reception problems that
probably do not indicate a problem with your radio:
FM
Fading and drifting stations ± Generally, the effective
range of FM is about 40 km (25 miles). Once outside this
range, you may notice fading and drifting, which
increase with the distance from the radio transmitter.
They are often accompanied by distortion.
Multi±path ± FM signals are reflective, making it
possible for two signals to reach your antenna at the
same time. If this happens, the signals will cancel each
other out, causing a momentary flutter or loss of
reception.
Static and fluttering ± These occur when signals are
blocked by buildings, trees, or other large objects.
Increasing the bass level may reduce static and

AIR CONDITIONING AND AUDIO
265
fluttering.
Station swapping ± If the FM signal you are listening to
is interrupted or weakened, and there is another strong
station nearby on the FM band, your radio may tune in
the second station until the original signal can be picked
up again.
AM
Fading ± AM broadcasts are reflected by the upper
atmosphere ± especially at night. These reflected
signals can interfere with those received directly from
the radio station, causing the radio station to sound
alternately strong and weak.
Station interference ± When a reflected signal and a
signal received directly from a radio station are very
nearly the same frequency, they can interfere with each
other, making it difficult to hear the broadcast.
Static ± AM is easily affected by external sources of
electrical noise, such as high tension power lines,
lightening, or electrical motors. This results in static.
Caring for your cassette player and tapes
For high performance from your cassette player and
tapes:
Clean the tape head and other parts regularly.
 A dirty tape head or tape path can decrease sound
quality and tangle your cassette tapes. The easiest
way to clean them is by using a cleaning tape. (A wet
type is recommended.)

AIR CONDITIONING AND AUDIO
266Use high±quality cassettes:

Low±quality cassette tapes can cause many
problems, including poor sound, inconsistent playing
speed, and constant auto±reversing. They can also
get stuck or tangled in the cassette player.
 Do not use a cassette if it has been damaged or
tangled or if its label is peeling off.
 Do not leave a cassette in the player if you are not
listening to it, especially if it is hot outside.
 Store cassettes in their cases and out of direct
sunlight.
 Avoid using cassettes with a total playing time longer
than 100 minutes (50 minutes per side). The tape
used in these cassette is thin and could get stuck or
tangled in the cassette player. Caring for your compact disc player and discs
20L037

AIR CONDITIONING AND AUDIO
267

Use only compact discs labeled as shown. The
player is intended for use with 12 cm (4.7 in.) discs
only.
 Extremely high temperature can keep your compact
disc player from working. On hot days, use air
conditioning to cool the vehicle interior before you
listen to a disc.
 Bumpy roads or other vibrations may make your
compact disc player skip.
 If moisture gets into your compact disc player, you
may not hear any sound even though your compact
disc player appears to be working. Remove the
magazine from the player and wait until it dries.
20e081
Your automatic changer cannot play special shaped
compact discs as shown. Do not use them as the
changer could be damaged.

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268
20L038

Correct
Wrong
Handle compact discs carefully, especially when you
set them into the magazine. Hold them on the edge
and do not bend them. Avoid getting fingerprints on
them, particularly on the shiny side.
 Dirt, scrapes, warping, pin holes, or other disc
damage could cause the player to skip or to repeat a
section of a track. (To see a pin hole, hold the disc up
to the light.)

AIR CONDITIONING AND AUDIO
269
20L039
To clean a compact disc: Wipe it with a soft, lint±free
cloth that has been dampened with water. Wipe in a
straight line from the center to the edge of the disc (not
in a circle). Do not use a conventional record cleaner or
anti±static device.

AIR CONDITIONING AND AUDIO
270
20L040
A new disc may have rough edges on its inner and
outer perimeter. Remove the rough edges by
pressing the side of a ball±point pen or pencil
against the inner and outer edges of the disc as
shown.
If you continue to play a disc with rough edges, flakes will
fall on to the signal side of the disc and cause sound
skipping or other problems.
CAUTION
Compact disc players use invisible laser beams which
could cause hazardous radiation exposure if directed
outside the unit. Be sure to operate the player correctly
as instructed.

STARTING AND DRIVING
301
Resuming the preset speed
If the preset speed is cancelled by pulling the control
lever or by depressing the brake pedal, pushing the lever
up in the ºRES/ACCº direction will restore the speed set
prior to cancellation. However, once the vehicle speed
falls below about 40 km/h (25 mph), the preset speed will
not be resumed.
Cruise control failure warning
If the ºCRUISEº indicator light in the instrument cluster
flashes when using the cruise control, push the main
switch to turn the system off and then push it again to
turn it on.
If any of the following conditions then occurs, there is
some trouble in the cruise control system.
 The indicator light does not come on.
 The indicator light flashes again.
 The indicator light goes out after it comes on.
If this is the case, contact your Lexus dealer and have
your Lexus inspected.
ELECTRONICALLY
MODULATED AIR SUSPENSION
(U.S.A. ONLY)
This electronically modulated air suspension
adjusts the damping effect on the shock absorbers
and the vehicle height. This adjustment is
automatically made in response to the driving
conditions to provide good riding comfort and
stability in all driving conditions.