LEXUS LS430 2005 Owners Manual

GAUGES, METERS AND SERVICE REMINDER INDICATORS
82
ODOMETER AND TRIP METER
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This meter displays the odometer and two trip meters. To
change the mode indication, push the “ODO/TRIP” button
briefly. Each time you push the button, the mode changes
in order from the odometer to trip meter A to trip meter B,
then to the odometer.
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 trip meter
A to zero, display the meter A reading, then push the
“RESET” button. The same applies for the trip B 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)or
If parking brake is off,
stop immediately and
contact Lexus dealer.
(b)
(Indicator and buzzer)
Fasten driver’s seat
belt.
(c)Fasten front
passenger’s seat belt.
(d)Take vehicle to Lexus
dealer immediately.
(e)Stop and check.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
83
IF THIS INDICATOR OR
BUZZER COMES ON ...
DO THIS.
(f)orTake vehicle to Lexus
dealer.
(g)See multi− information
display.
(h)or
Take vehicle to Lexus
dealer.
If brake system
warning light is also
on, stop immediately
and contact Lexus
dealer
(i)Close all doors.
(j)Low fuel level
warning lightFill up tank.
IF THIS INDICATOR OR BUZZER COMES ON ...DO THIS.
(k)Key reminder
buzzerRemove key.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
84
(a) Brake System Warning Light
This light comes on in the following cases when the ignition
switch is in the “ON” position.
When the parking brake is applied ...
This light comes on for a few seconds when the ignition switch
is turned to the “ON” position even after the parking brake is
released.
 When the brake fluid level is low ...
CAUTION
It is dangerous to continue driving normally when the
brake fluid level is low.
Have your vehicle checked at your Lexus dealer in the
following case:
The light does not come on even if the parking brake is
applied when the ignition switch is in the “ON” position.
 The light does not come on even if the ignition switch is
turned on with the parking brake released.
A warning light turning on briefly during operation does not
indicate a problem.
CAUTION
If either of the following conditions occurs, immediately
stop your vehicle at a safe place and contact your Lexus
dealer.
 The light does not turn off even after the parking
brake is released while the engine is running.
In this case, the brakes may not work properly and
your stopping distance will become longer. Depress
the brake pedal firmly and bring the vehicle to an
immediate stop.
 The brake system warning light remains on together
with the “ABS” warning light.
In this case, not only the antilock brake system will
fail but also the vehicle will become extremely
unstable during braking.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
85
(b) Driver’s Seat Belt Reminder Light andBuzzer
The light and buzzer act as a reminder to have the driver buckle
up the seat belt.
Once the ignition switch is turned to “ON” or “START”, the
reminder light flashes and buzzer sounds if the driver’s seat
belt is not fastened. Unless the driver fastens the belt, the light
continues flashing and the buzzer stops after about 4 to 8
seconds.
(c) Front Passenger’s Seat Belt ReminderLight
The light acts as a reminder to have the front passenger buckle
up the seat belt.
Once the ignition switch is turned to “ON” or “START”, 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 continues flashing.
However, if a front passenger uses an additional seat cushion,
the indicator light may not flash even when the seat belt is not
buckled up.
If luggage or other load is placed on the front passenger seat,
depending on its weight and how it is placed on the seat, the
built−in sensor in the seat cushion may detect the pressure,
causing the reminder light to flash.
(d) SRS Warning Light
The indicators come on when the ignition switch is turned
to the “ON” position. It goes off after about 6 seconds.
This means the SRS airbags and seat belt pretensioners
are operating properly.
This warning light system monitors the airbag sensor
assembly, front airba g sensors, side and curtain shield airbag
sensor assemblies, curtain shield airbag sensor assemblies,
driver’s seat position sensor, driver’s seat belt buckle switch,
occupant detection sensor, front passenger’s seat belt buckle
switch, seat belt pretensioner assemblies, inflators, warning
light, interconnecting wiring and power sources.
If any 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.
 When the ignition switch is turned to the “ON” position, the
light does not come on or remains on for more than 6
seconds.
 The light comes on while driving.
If the light stays on, it indicates that the SRS driver and front
passenger airb ags, SRS side and curtain shield airbags and/or
seat belt pretensioners have a problem.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
86
(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 when the ignition switch is turned to
the “ON” position and goes off after the engine starts.
This means that the warning light system is operating
properly.
If the lamp remains on, or the lamp comes on while
driving, first check the following:
 Empty fuel tank
If the fuel tank is empty, refuel immediately.
 Loose fuel tank cap
If the fuel tank cap is loose, securely tighten it.
These cases are temporary malfunctions. The malfunction
indicator lamp will go off after taking several driving trips.
If the lamp does not go off even after several trips, contact your
Lexus dealer as soon as possible.
If the fuel tank is not empty or the fuel tank cap is not
loose...
 There is a problem somewhere in the engine, emission
control system, electronic throttle control system, automatic
transmission electrical system or warning light system itself.
Contact your Lexus dealer as soon as possible to service the
vehicle.
If this lamp comes on and engine speed does not increase
when the accelerator pedal is depressed, there may be a
problem somewhere in the electronic throttle control system.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
87
At this time, vibration may occur. However, if you depress the
accelerator pedal more firmly and slowly, you can drive your
vehicle at low speeds. Have your Lexus checked by your
Lexus dealer as soon as possible.
Even if the abnormality of the electronic throttle control system
is corrected during low speed driving, the system may not be
recovered
until the engine is stopped and the ignition switch is
turned to “ACC” or “LOCK” position.
Emissions inspection and maintenance (I/M) programs
Your vehicle may not pass a state emission inspection if the
malfunction indicator lamp remains on. Contact your Lexus
dealer to check your vehicle’s emission control system and
OBD (On −Board Diagnostics) system before taking your
vehicle for the inspection.
For details, see “Emissions inspection and maintenance (I/M)
programs” on page 431.
(g) Master Warning Light
If any system malfunctions, this warning light comes on or
flashes together with a warning tone, and a warning message
appears in the multi−information display. When the cause of
the problem is eliminated, the warning tone and message on
the display will turn off.
(h) “ABS” Warning Light
The light comes on when the ignition switch is turned to the
“ON” position. If the anti−lock brake system and the brake
assist system work properly, the light turns off after a few
seconds. Thereafter, if either of the systems malfunctions, the
light comes on again.
When the “ABS” warning light is on (and the brake system
warning light is off), the anti −lock brake system, the brake
assist system, the traction control system and/or the vehicle
stability control system do/does not operate, but the brake
system still operates conventionally.
When the “ABS” warning light is on (and the brake system
warning light is off), the anti− lock brake system does not
operate so that the wheels could lock up during a sudden
braking or braking on slippery road surfaces.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
88If any of the following conditions occurs, this indicates a
malfunction
somewhere in the components monitored by
the warning light system. Contact your Lexus dealer as
soon as possible to service the vehicle.
 The light does not come on when the ignition switch is
turned to the “ON” position, or remains on.
 The light comes on while you are driving.
A warning light turning on briefly during operation does not
indicate a problem.
CAUTION
If the “ABS” warning light remains on together with the
brake system warning light, immediately stop your
vehicle at a safe place and contact your Lexus dealer.
In this case, not only the antilock brake system will fail
but also the vehicle will become extremely unstable
during braking.
(i) Open Door Warning Light
This light remains on until all the doors are completely closed.
(j) Low Fuel Level Warning Light
This light comes on when the fuel level in the tank becomes
very low. Fill 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.
(k) Key Reminder Buzzer
This buzzer acts as a reminder to remove the key when you
open the driver’s door with the ignition key in the “ACC” or
“LOCK” position.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
89
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 switch to “ON”.
The following service reminder indicators should come on.

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or

or
or
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The following service reminder indicator goes off after a few
seconds.

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or
The following service reminder indicator goes off after 6
seconds.
If any service reminder indicator or warning buzzer does not
function as described above, have it checked by your Lexus
dealer as soon as possible.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
90
MULTIINFORMATION DISPLAY
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The multiinformation display provides various
information, including your vehicle’s driving condition,
outside temperature, and warning messages if your
vehicle is in trouble.
During ordinary driving, cruise information and graphic
information are displayed. However, if any problem
occurs in your vehicle, a warning message appears above
the cruise information.
(a) Cruise information
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 1 “DISP1” button 2“DISP2” button
3“RESET” button
The following information is shown with the ignition
switch turned on. Each time you push the “DISP1” 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
 Blank

GAUGES, METERS AND SERVICE REMINDER INDICATORS
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The displayed cruise information values indicate the general
driving
condition and may not always reflect precise and actual
conditions.
 Available driving distance
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When the fuel gauge is close to “F”
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When the fuel gauge is close to middle
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When the fuel gauge is close to “E”
The available driving distance is calculated and displayed
depending on the amount of remaining fuel.
 Average fuel consumption
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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 begin recalculating, push the “RESET” button for about 1 to
2 seconds.
 Current fuel consumption
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The current fuel consumption is calculated and displayed
based on the driving distance and the fuel consumption
per 2 second interval with the engine running.
The value is updated every 2 seconds.
If you are driving at low speeds just before stopping, the
accurate figure may not be shown.
Average fuel consumption after refueling
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The average fuel consumption after refueling is
calculated and displayed based on the total driving
distance and the total fuel consumption after refueling.
The value is updated every 10 seconds.
When refueling, be sure to stop your vehicle and turn the
ignition switch off.
The average fuel consumption could not be calculated in either
of the following cases:
 Refueled by opening the fuel filler door using the manual
lever in the trunk
 Refueled with a small quantity of gasoline
To begin recalculating, push the “RESET” button for about 1 to
2 seconds.