lexus LS400 1999 Electrical Components / LEXUS 1999 LS400 (OM50514U) Manual PDF

SWITCHES
55
CAUTION
Occupants must use caution when operating the seat
heater because they may experience minor burns even
at low temperatures. 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 from overheating, do not use the
seat heater with a blanket, cushion, or other insulating
objects which cover the seat.

SWITCHES
56
NOTICE
Do not put unevenly weighted objects on theseat and do not stick sharp objects (needles,nails, etc.) into the seat.
When cleaning the seats, do not use organicsubstances (paint thinner, benzine, alcohol,gasoline, etc.). They may damage the heaterand seat surface.
To prevent the battery from being discharging,turn the switches on when the engine isrunning.

SECTION 1 ± 3
57
INSTRUMENTS AND CONTROLS
Gauges, meters and service reminder
indicators
Fuel gauge57
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine coolant temperature gauge 59
. . . . . . . . . . . . . . .
Tachometer 60
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Odometer and trip meter 61
. . . . . . . . . . . . . . . . . . . . . . . .
Service reminder indicators and warning buzzers 62 . . .
Multi information display 70
. . . . . . . . . . . . . . . . . . . . . . . .
Instrument panel light control 79
. . . . . . . . . . . . . . . . . . . .
FUEL GAUGE
13L001±1

GAUGES, METERS AND SERVICE REMINDER INDICATORS
58

Low fuel level warning light
The gauge is displayed when the ignition switch is
on and indicates the approximate quantity of fuel
remaining in the tank.
It is a good idea to keep the tank over 1/4 full.
If the fuel level approaches ºEº or the low fuel level
warning light comes on, fill the fuel tank as soon as
possible.
On inclines or curves, due to the movement of fuel in the
tank, the fuel gauge needle may fluctuate or the low fuel
level warning light may come on earlier than usual.
If the fuel tank is completely empty, the malfunction
indicator lamp comes on. Fill the fuel tank immediately.
The indicator lamp goes off after driving several times.
If the indicator lamp does not go off, contact your Lexus
dealer as soon as possible.
See the inner back cover for fuel capacity and
recommended fuel selection.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
59
ENGINE COOLANT
TEMPERATURE GAUGE
13L002±2

Normal range
The gauge indicates the engine coolant temperature
when the ignition switch is on. The engine operating
temperature will vary with changes in weather and
engine load.
If the needle points to the red zone or higher, stop your
vehicle and allow the engine to cool.
Your vehicle may overheat during severe operating
conditions, such as:
 Driving up a long hill on a hot day.
 Reducing speed or stopping after high speed driving.
 Idling for a long period with the air conditioning on in stop±and±go traffic.
 Towing a trailer.
NOTICE
Do not remove the thermostat in the engine
cooling system as this may cause the engine to
overheat. The thermostat is designed to control the flow of coolant to keep thetemperature of the engine within the specifiedoperating range.
Do not continue driving with an overheatedengine. See ºIf your vehicle overheatsº onpage 347.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
60
TACHOMETER
13L003±1
The tachometer indicates engine speed in
thousands of rpm (revolutions per minute). Use it
while driving to prevent engine overrevving.
Driving with the engine running too fast causes
excessive engine wear and poor fuel economy.
Remember, in most cases the slower the engine speed,
the greater the fuel economy.
NOTICE
Do not let the indicator needle get into the red
zone. This may cause severe engine damage.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
61
ODOMETER AND TRIP METER
13L004±1

GAUGES, METERS AND SERVICE REMINDER INDICATORS
62This meter displays the odometer and two trip
meters. To change the mode indication, push the
ºODO/TRIPº 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 ºODO/TRIPº button. To set the
A trip meter to zero, display the A meter reading,
then push the ºRESETº 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.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
63
(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. (f) Take vehicle to
Lexus dealer.
(g) Take vehicle to Lexus dealer.
(h) Close all doors.
(i) Low fuel level Fill up tank. warning light
(j) Key reminder buzzer Remove key.
or
or

GAUGES, METERS AND SERVICE REMINDER INDICATORS
64
(a) Brake System Warning Light
This light has the following two functions:
Parking brake reminder
If this light is on, make sure the parking brake is fully
released. The light should go off.
Low brake fluid level warning
If this light comes on and stays on while you are driving,
slow down and pull off the road. Then stop the vehicle
carefully. Remember that stopping distance and pedal
effort may be increased. There may be a problem
somewhere in the brake system. Check the fluid level
of the see±through reservoir.
To make sure the parking brake has not caused the
warning light to come on, check to see that the parking
brake is fully released.
If the brake fluid level is low ...
At a safe place, test your brakes by starting and
stopping.
If you judge that the brakes still work adequately, drive
cautiously to your nearest dealer or shop for repairs.
 If the brakes are not working, have the vehicle towed
in for repairs. (For towing information, see page 366.)