ECO mode lexus LS400 1998 Engine / LEXUS 1998 LS400 OWNER'S MANUAL (OM50498U)

GAUGES, METERS AND SERVICE REMINDER INDICATORS
36
ODOMETER AND TRIP METER
13L0041
This meter displays the odometer and two trip meters. To
change the mode indication, push the ”ODO/TRIP” button.
The odometer records the total distance the vehicle has been
driven. The twin trip meter records two different distances
independently.
For example, you can use one meter to calculate the fuel economy
and the other to measure the distance on each trip.
To change the trip meter indication from one trip to the other,
push the ”ODO/TRIP” button. To set the A trip meter to zero,
display the A meter reading, then push the ”RESET” button.
The same applies for the B trip meter.
The data of trip meters will be cancelled if the electrical power
source is disconnected.
SERVICE REMINDER INDICATORS
AND WARNING BUZZERS
IF THIS INDICATOR
OR BUZZER COMES
ON ...DO THIS.
(a) If parking brake is off,
stop and check.
(b) Fasten driver’s seat belt.

(Indicator and buzzer)
(c) Fasten front passenger’s
seat belt.
(Under the center vent)
(d) Take vehicle to Lexus
dealer immediately.
(e) Stop and check.

or

GAUGES, METERS AND SERVICE REMINDER INDICATORS
42
(a) Cruise information
13L0491
The following information is shown with the ignition switch
turned on. Each time you push the ”MODE” button, the
displayed information is changed.
Available driving distance
Average fuel consumption
Current fuel consumption
Average fuel consumption after being refueled
Driving distance after being refueled
Elapsed time
Average vehicle speed
The displayed values of cruise information indicate the general
driving condition, so those may not show precise and actual
condition.
Available driving distance
W24
When the fuel gauge indicates around ”F”
W25W25
When the fuel gauge indicates around middle
W26
When the fuel gauge indicates around ”E”
Available driving distance with the remaining fuel is calculated
and displayed depending on the amount of remaining fuel.
Average fuel consumption
W27
W27
The average fuel consumption is calculated and displayed based
on the total driving distance and the total fuel consumption with
the engine running.
The value is updated every 10 seconds.
To calculate from the beginning, push the ”RESET” button.

COMFORT ADJUSTMENT
79
Folding rear view mirrors
16L018
To fold the rear view mirror, push backward.
The rear view mirrors can be folded backward for parking in
restricted areas.
CAUTION
Do not drive with the mirrors folded backward. Both the
driver and passenger side rear view mirrors must be extended
and properly adjusted before driving.
INSIDE REAR VIEW MIRROR
16L019-1
Pushing the switch changes the mode between ”AUTO” and
”DAY”.
The indicator comes on when the ”AUTO” mode is selected.
”DAY” mode: The mirror surface is normal.
”AUTO” mode: If the mirror detects light from the headlights
of the vehicle behind you, the mirror surface darkens slightly to
reduce the reflected light.
When the inside rear view mirror surface changes, the outside rear
view mirror surfaces will also become darker.
When the ignition key is inserted and turned on, the inside rear view
mirror always turns on in the ”AUTO” mode.
Adjust it before driving so that the rear view is the best.
When the outside air temperature is low, it may take a little longer
for the mirror to darken in response to the detection of headlights.

AIR CONDITIONING AND AUDIO
127 For normal use, it is best to keep the air intake control button set to
OUTSIDE AIR mode. If recirculated air is used during heating, the
windows will fog up more easily.
To change the sensitivity of the sensor switching between the
RECIRCULATED and OUTSIDE AIR in the AUTOMATIC
mode, push the air intake control button until you hear a beep.
The display changes as illustrated below.
21L044
Each time you push the ”TEMP” button, the sensitivity changes from
”+3” down to ”3”. If you do not operate any button for a few
seconds, the previous display returns.If manual onoff of the air conditioning is desired
Push the ”A/C” button to turn the air conditioning on and push it
again to turn the air conditioning off.
The air conditioning does not work if the outside temperature is
lowered down to around 0C (32F).
If the system is used for ventilation, heating in dry weather or
removing frost or exterior fog on the windshield, turn the air
conditioning off once it is no longer required. This will improve fuel
economy. The air conditioning can be used for yearround
automatic temperature control including cooling and dehumidifying
operation.
If the air conditioning compressor does not operate, the indicator of
the ”A/C” button will blink. If the indicator of the ”A/C” button
blinks even when the ”A/C” button is pushed again, have the
compressor checked by your nearest Lexus dealer.

AIR CONDITIONING AND AUDIO
128
(b) Windshield defogging and defrosting
21L009-3
To remove interior fog on the windshield
Push the”FRONT WINDSHIELD” button.
To remove frost or exterior fog on the windshield
1. Place the temperature control button at the maximum
temperature.
2. Push the ”FRONT WINDSHIELD” button.
3. Push the fan speed control button on the right side to obtain a
maximum air flow.
4. Leave the air conditioning onoff button off.When the ”FRONT WINDSHIELD” button is pushed while
operating in automatic mode, the air conditioning is set to operate
and the OUTSIDE AIR mode is set.
If you push the ”FRONT WINDSHIELD” button once again while
in the FRONT WINDSHIELD mode, the mode then returns to the
last mode used.
CAUTION
Do not use the ”FRONT WINDSHIELD” button during
cooled air operation in extremely humid weather. The
difference between the temperature of the outside air and that
of the windshield could cause the outer surface of the
windshield to fog up blocking your vision.
When you turn the ignition switch on after the removal and
installation of the battery terminal, the indicator light may flash and
the operating sound of the motor may be heard. This does not
indicate a malfunction.
You may hear the operating sound of the motor about 70 seconds
after the ignition switch is turned off. This is not also a malfunction.

AIR CONDITIONING AND AUDIO
130
(d) Operating tips
Make sure the air inlet grilles in front of the windshield are not
blocked by leaves or other obstructions.
If air flow control is not satisfactory, check the dashboard vents.
(See ”Center vents”, ”Side vents”, ”Lower vent” and ”Rear
vents”.)
To help cool down the interior after parking in the hot sun, drive
for the first few minutes with the windows open. After the excess
heat has blown away, close the windows.
When driving on dusty roads, close all windows. If dust thrown
up by the vehicle is still drawn into the vehicle after closing the
windows, it is recommended that the air intake control button be
left to the OUTSIDE AIR mode and the fan speed control button
be pressed to anywhere except the ”OFF” button.
If following another vehicle on a dusty road, or driving in windy
and dusty conditions, it is recommended that the air intake control
button be temporarily pressed in to the RECIRCULATED AIR
mode, which will close off the outside passage and prevent
outside air and dust from entering the vehicle interior.
Center vents
21L0121
The center vents may be opened or closed as shown.
Side vents
21L013
The side vents may be opened or closed as shown.

AIR CONDITIONING AND AUDIO
135
20L043
In the ”TAPE” or ”CD” mode, the applicable functions are
shown in the lowest part of the display. Push the switch just
below to turn on each function.
(b) Tone and balance
How good an audio program sounds to you is largely determined by
the mix of the treble, midrange, and bass levels. In fact, different
kinds of music and vocal programs usually sound better with
different mixes of treble, midrange, and bass.
A good balance of the left and right stereo channels and of the front
and rear sound levels is also important.
Keep in mind that if you are listening to a stereo recording or
broadcast, changing the right/left balance will increase the volume
of one group of sounds while decreasing the volume of another.
20L044-2
”BASS” knob: Use this knob to adjust lowpitched tones.
”MID” knob: Use this knob to adjust midpitched tones.
”TREBLE” knob: Use this knob to adjust highpitched tones.
”BALANCE” knob: Use this knob to adjust the sound balance
between the right and left speakers.
”FADER” knob: Use this knob to adjust the sound balance between
the front and rear speakers.

AIR CONDITIONING AND AUDIO
140
Cassette tape player operation
(a) Playing a cassette tape
20L049-2
When you insert a cassette tape, the exposed tape should be to the
right.
The player will automatically start when you insert a cassette tape.
At this time, ”TAPE” appears on the display.
If a metal or chrome equivalent cassette tape is put in the cassette
player, the player will automatically adapt to it and ”METAL”
appears on the display.
To stop or eject the cassette tape, push the ”EJECT” button.
Autoreverse feature: After the cassette player reaches the end of
a tape, it automatically reverses and begins to play the other side,
regardless of whether the cassette was playing or fast forwarding.
20L050-2
If a cassette is already in the slot, push the ”TAPE” button.
Dolby Noise Reduction* feature: If you are listening to a tape that
was recorded with Dolby* B or C Noise Reduction, push the button
by the doubleD symbol until the appropriate symbol appears on the
display.
The Dolby B NR mode reduces tape noise by about 10 dB. The
Dolby C NR mode reduces tape noise by another 10 dB or about 20
dB total. For best sound reproduction, select the same NR mode that
was used to record the tape.
To play a tape recorded without Dolby NR, push the button until the
symbol disappears from the display.
* Dolby noise reduction manufactured under license from Dolby
Laboratories Licensing Corporation. ”DOLBY” and the doubleD symbol
are trademarks of Dolby Laboratories Licensing Corporation.

STARTING AND DRIVING
162
31L008-3
1
Power mode 2
Normal mode 3
Snow mode
2. Set the driving pattern selector switch to the ”Normal”
position.
Your transmission has a driving pattern selector switch which allows
you to select ”Power”, ”Normal” or ”Snow” mode to suit your
driving condition. For ordinary driving, Lexus recommends that
you use the ”Normal” position to improve fuel economy.
3. For more powerful acceleration and sporty driving, use the
”Power” position.
In the POWER position, the ”ECT PWR” light in the instrument
cluster is on and the transmission is shifted up at higher vehicle
speeds and shifted down more responsively than in the NORMAL
position.
For ”Snow” mode, see ”Electronic Throttle Control System” on
page 167.
31l0552
1
”D” (Drive) position 2
Brake pedal
4. With your foot holding down the brake pedal, shift the
selector lever to ”D”.
Always use the ”D” position to improve fuel economy and quiet
driving. Only in this position, shifting into the overdrive gear is
possible. However, while the engine coolant temperature is low, the
transmission will not shift into the overdrive gear even in the ”D”
position. (See ”(b) Using engine braking” and ”(f) Good driving
practice” for exceptions.)
CAUTION
Never put your foot on the accelerator pedal while shifting.

STARTING AND DRIVING
167
(h) If you cannot shift the selector lever
If you cannot shift the selector lever even though the brake pedal is
depressed, use the shift lock override button. For instructions, see
”If you cannot shift automatic transmission selector lever” on page
209.
(i) If the ”ECT PWR” indicator light flashes
If the ”ECT PWR” indicator light flashes, contact your Lexus dealer
as soon as possible. There may be trouble in the transmission
system.
ELECTRONIC THROTTLE
CONTROL SYSTEM
The electronic throttle control system always maintains
appropriate engine output in relation to the accelerator opening
in all driving conditions.
31L0082
1
Power mode 2
Normal mode 3
Snow mode
The electronic throttle control system has 3 modes: Normal,
Power and Snow modes.
Normal mode: For ordinary driving, Lexus recommends that you
use the normal mode to improve fuel economy.
Power mode: For more powerful acceleration and sporty driving.