warning lexus LS400 1999 Electrical Components / LEXUS 1999 LS400 (OM50514U) User Guide

GAUGES, METERS AND SERVICE REMINDER INDICATORS
66If the brake fluid level is correct ...
Have
the warning system checked by your Lexus dealer.
(b) Driver's Seat Belt Reminder Light
and Buzzer
Once the ignition key is turned to ºONº or ºSTARTº, the
reminder light flashes and buzzer sounds if the driver's
seat belt is not fastened. Unless the driver fastens the
belt, the light stays flashing and the buzzer stops after
about 4 to 8 seconds.
(c) Front Passenger's Seat BeltReminder Light
Once the ignition key is turned to ºONº or ºSTARTº, the
reminder light flashes if a passenger sits in the front
passenger seat and does not fasten the seat belt.
Unless the front passenger fastens the belt, the light
stays flashing.
If luggage load is placed on the front passenger seat,
depending on its weight and how it is placed on the seat,
built±in sensors in the seat cushion may detect the
pressure, causing the reminder light to come on.
(d) SRS Warning Light
The indicators come on when the ignition key is
turned to the ºACCº or ºONº position. It goes off
after about 6 seconds. This means the SRS is
operating properly.
The SRS warning light system monitors the airbag
sensor assemblies, inflators, seat belt pretensioners,
warning light, interconnecting wiring and power sources.
If either of the following conditions occurs, this indicates
a malfunction somewhere in the parts monitored by the
warning light system. Contact your Lexus dealer as
soon as possible to service the vehicle.
 The light does not come on as described above.
 The light stays on or flashes.
 The light comes on or starts flashing while driving.
If the light stays on, it indicates that the driver and front
passenger airbags fail. If the light flashes, the side
airbags and/or seat belt pretensioners fail.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
67
(e) Discharge Warning Light
This light warns that the battery is being discharged.
If it comes on while you are driving, stop the vehicle, turn
off the engine, and check for the cause. Look first at the
engine drive belt.
If it is loose or broken, the generator will not charge
the battery properly.
 If the belt is O.K., there is a problem somewhere in the
charging system.
The engine ignition will continue to operate, however,
until the battery is discharged. Turn off the air
conditioning, blower, radio, etc., and drive directly to the
nearest Lexus dealer or repair shop.
NOTICE
Do not continue driving if the engine drive belt is broken or loose.
(f) Malfunction Indicator Lamp
This lamp comes on in the following cases.
a. The fuel tank is completely empty. (See ºFuel gaugeº
on page 57 for instructions.)
b. The fuel tank cap is not tightened securely. (See
ºFuel tank capº on page 110 for instructions.)
c. There is a problem somewhere in your engine
electrical system, automatic transmission electrical
system or electronic throttle control system.
If it comes on while you are driving in case ªc.º, have your
vehicle checked/repaired by your Lexus dealer as soon
as possible.
(g) ºABSº Warning Light
This light warns that there is a problem somewhere in
your anti±lock brake system.
If the light comes on while you are driving, have your
vehicle checked by your Lexus dealer as soon as
possible.
The light will come on when the ignition key is turned to
ºONº, and will go off after about a few seconds.
When the ºABSº warning light is on (and the brake
system warning light is off), the brake system operates
conventionally but anti±lock brake system is not
assisting brake performance so that the wheels could
lock up during a sudden brake or braking on slippery

GAUGES, METERS AND SERVICE REMINDER INDICATORS
68road surfaces.
(h) Open Door Warning Light
This light remains on until all the doors are completely
closed.
(i) Low Fuel Level Warning Light
This light comes on when the fuel level in the tank
becomes
nearly empty. F ill the tank as soon as possible.
On inclines or curves, due to the movement of fuel in the
tank, the low fuel level warning light may come on earlier
than usual.
(j) Key Reminder Buzzer
This buzzer reminds you to remove the key when you
open the driver's door with the ignition key in the ºACCº
or ºLOCKº position.
How to check all the service reminder
indicators
(except the low fuel level warning light):
1. Apply the parking brake.
2. Open the door.
The following service reminder indicator should come
on. It goes off when you close the door completely.
3. Turn the ignition key to ºACCº.
The following service reminder indicator should come
on. It goes off after 6 seconds.
4. Turn the ignition key to ºONº.
The following service reminder indicators should come
on.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
69
or
The following service reminder indicators go off after 3
seconds.

or
5. Turn the ignition key to ºSTARTº.
The following service reminder indicator should come
on.
or
If any service reminder indicator or warning buzzer does
not function, either the bulb is burned out or circuit is in
need of repair. Have it checked by your Lexus dealer as
soon as possible.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
70
MULTI INFORMATION DISPLAY
13L042±1
The multi information display provides cruise
information on your vehicle's driving condition and
warning messages if your vehicle has trouble.
During ordinary driving, cruise information is
shown in the display. However, if any problem
occurs in your vehicle, a warning message appears
in place of cruise information. To change to the
cruise information display, push the ºFUNCTIONº
button.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
75
(b) Warning messages
13L052

Reminder light
W40W40
When the engine oil pressure becomes too low, the
above message appears, the reminder light flashes
and the warning tone sounds.
If this message appears while you are driving, pull off the
road to a safe place and stop the engine immediately.
Call a Lexus dealer or qualified repair shop for
assistance.
The message may appear when the oil level is extremely
low. It is not designed to indicate low oil level, and the
oil level must be checked using the oil level dipstick.NOTICE
Do not drive the vehicle with the warning messagedisplayed ± even for one block. It may ruin theengine.
W41W41

GAUGES, METERS AND SERVICE REMINDER INDICATORS
76When your brake pads are worn enough to require
replacement, the above message appears, the
reminder
light flashes and the warning tone sounds.
If this message appears while you are driving, have the
brake pads checked and replaced by your Lexus dealer
as soon as possible.
W43W43
W42W42
W45±1
W44W44
W46W46
When any door or trunk is open with the ignition
switch turned on, the message which door or trunk
is open appears, and the reminder light comes on. If you continue driving with any door or trunk open, the
reminder light starts flashing and the warning tone
sounds to remind you to close the door or trunk.
W52W52
If the driver's door is opened with the ignition switch
turned off and the moon roof opened, the above
message appears and the reminder light flashes.
W48W48

GAUGES, METERS AND SERVICE REMINDER INDICATORS
77
In the following cases, the warning message
appears and the reminder light next to the warning
message and the ºVSC OFFº indicator light come
on. And the warning tone also sounds.
(a) After
the removal of the battery terminals (See ºInitial
adjustment of vehicle skid control systemº on page 310.)
(b) If the vehicle skid control system malfunctions
If the above message appears for the cause of (b), have
your vehicle checked by your Lexus dealer as soon as
possible.
Although the above message appears, you can continue
your normal driving, but without the vehicle skid control
system function.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
78
W49W49
In the following cases, the above message appears,
the reminder light comes on and the warning tone
sounds.
When the headlight switch is turned to the first or
second clickstop with one or more of tail light bulbs
burned out.
 When the brake pedal is held down with one or more
of stop light bulbs burned out.
Have defective bulbs replaced as soon as possible.
W50W50
When the engine oil level is too low, the above
message appears, the reminder light comes on and
the warning tone sounds.
Add oil as soon as possible. (For instructions, see
ºChecking the engine oil levelº on page 405.)
NOTICE
Continued engine operation with low engine oil will damage the engine.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
79
W51W51
When the fluid level in the tank becomes nearly
empty, the above message appears, the reminder
light comes on and the warning tone sounds.
Fill the tank as soon as possible.
W53W53
When there is a problem somewhere in the
automatic headlight leveling system, the above
message appears, the reminder light comes on and
the warning tone sounds.
If this message appears, have your vehicle checked by
your Lexus dealer.INSTRUMENT PANEL LIGHTCONTROL
13L005
To adjust the brightness of the instrument panel
lights, turn the knob.