2005 Lexus IS300 ignition

GAUGES, METERS AND SERVICE REMINDER INDICATORS
44
FUEL GAUGE
SV13017

Low fuel level warning light
The gauge indicates the approximate quantity of fuel
remaining in the tank when the ignition switch is on.
It is a good idea to keep the tank over 1/4 full.
If the fuel level approaches ªEº 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.
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GAUGES, METERS AND SERVICE REMINDER INDICATORS
45
ENGINE COOLANT TEMPERATUREGAUGE
SV13012

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.
NOTICE
Do not remove the thermostat in the engine cooling
system as this may ca use the engine to overheat. The
thermostat is designed to control the flow of coolant to keep the temperature of the engine within thespecified operating range.
Do not continue driving with an overheated engine.See ªIf your vehicle overheatsº on page 285.
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GAUGES, METERS AND SERVICE REMINDER INDICATORS
50
(a) Brake System Warning Light and Buzzer
This light comes on in the following cases when the ignition key
is in the ªONº position.
 When the parking brake is applied ...
This light comes on for a few seconds when the ignition key is
turned to the ªONº position even after the parking brake is
released.
If you drive your vehicle without releasing the parking brake,
the buzzer sounds.
 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 cases:
The light does not come on even if the parking brake is
applied when the ignition key is in the ªONº position.
 The light does not come on even if the ignition key 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 the 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 ªABSº warning light.
In this case, not only the anti±lock brake system will
fail but also the vehicle will become extremely
unstable during braking.
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GAUGES, METERS AND SERVICE REMINDER INDICATORS
51
(b) Driver's Seat Belt Reminder Light andBuzzer
The light and buzzer acts as a reminder to buckle up the
driver's seat belt.
Once the ignition key is turned to ªONº or ªSTARTº, 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 key is turned to ªONº or ªSTARTº, 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. However,
if a front passenger uses an additional seat cushion, the 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,
built±in sensors in the seat cushion may detect the pressure,
causing the reminder light to flash.
(d) SRS Warning Light
The indicator comes on when the ignition key is turned to
the ªACCº or ªONº position. It goes off after about 6
seconds. This means the SRS airbags and front seat belt
pretensioners are operating properly.
The SRS warning light system monitors the airbag sensor
assembly, front airbag sensors, side and curtain shield airbag
sensors, front seat belt pretensioner assemblies, inflators,
warning light, interconnecting wiring and power sources.
If either 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 key is turned
to the ªACCº or ªONº position or remains on for more than 6 seconds or flashes.
 The light comes on or flashes while driving.
If the light stays on, it indicates that the driver and front
passenger airbags fail. If the light flashes, the side and curtain
shield airbags and/or seat belt pretensioners fail.
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GAUGES, METERS AND SERVICE REMINDER INDICATORS
52
(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) Low Engine Oil Pressure Warning Light
This light warns that the engine oil pressure is too low.
If it flickers or stays on 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 light may occasionally flicker when the engine is idling or
it may come on briefly after a hard stop. There is no cause for
concern if it then goes out when the engine is accelerated
slightly.
The light may come on 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 light on ± evenfor one block. It may ruin the engine.
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GAUGES, METERS AND SERVICE REMINDER INDICATORS
53
(g) Low Engine Oil Level Warning Light
This light warns that the engine oil level is too low. Add oil as
soon as possible. (For instructions, see ªChecking the engine
oil levelº on page 333.)
While driving on steep inclines or rough roads which causes
the vehicle to substantially sway or on curves, this light may
come on due to the movement of engine oil in the engine.
In normal conditions, due to engine oil consumption, this light
may come on earlier than the specified service interval of the
scheduled maintenance. This is because the engine oil is
consumed to the low level within the scheduled maintenance
interval and does not indicate a problem. (For detailed
information, see ªFacts about engine oil consumptionº on page
331.)
NOTICE
Continued engine operation with low engine oil will damage the engine.
(h) Engine Oil Replacement Reminder Light (for vehicles sold in U.S.A.)
This light acts as a reminder to replace the engine oil.
This light will come on when the ignition key is turned to the
ªONº position and will go off after about a few seconds. When you drive for about 7200 km (4500 miles) after the
engine oil replacement, this light illuminates for about 3
seconds and then flashes for about 12 seconds with the
ignition key turned to the ªONº position. If you continue driving
without replacing the engine oil, and if the distance driven
exceeds 8000 km (5
000 miles), the light will come on after the
ignition key is turned to the ªONº position. The light will remain
on thereafter.
If the light is flashing, we recommend that you replace the
engine oil at an early opportunity depending on the driving and
road conditions. If the light comes on, replace it as soon as
possible.
The system must be reset after the engine oil replacement.
Reset the system by the following procedure:
1. Turn the ignition key to the ªOFFº position with the odometer
reading shown. (For details, see ªOdometer and trip meterº on
page 48.)
2. Turn the ignition key to the ªONº position while holding down
the ªODO/TRIPº button.
Hold down the button for at least 5 seconds. The odometer
indicates ª000000º and the light goes off.
If the system fails to reset, the system will revert to the state
before resetting operation. In this case, return to step 1 and try
again.
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GAUGES, METERS AND SERVICE REMINDER INDICATORS
54
(i) Malfunction Indicator Lamp
This lamp comes on when the ignition key is turned to the
ªONº 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 followings.
 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 engine speed does not increase when the accelerator pedal
is depressed, there may be a problem somewhere in the
electronic throttle control system. At this time, 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 abnorma lity 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 key is
turned to ªACCº or ªLOCKº position.
CAUTION
Be especially careful to prevent erroneous pedal
operation.
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 ªEmissions Inspection and Maintenance (I/M)
programsº on page 313.
(j) ªABSº Warning Light
The light comes on when the ignition key is turned to the ªONº
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.
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GAUGES, METERS AND SERVICE REMINDER INDICATORS
55
When the ªABSº 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 not operate, but the brake system
still operates conventionally.
When the ªABSº warning light is on (and the brake system
warning light is off), the anti±lock brake system and/or the
traction
control system do/does not operate so that the wheels
could lock up during a sudden braking or braking on slippery
road surfaces.
If either 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 key is turned
to the ªONº 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 ªABSº 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 anti±lock brake system will fail
but also the vehicle will become extremely unstable
during braking.
(k) Open Door Warning Light
This light remains on until all the doors are completely closed.
(l) Rear Light Failure Warning Light
If this light comes on when the headlight switch is turned on (at
the first or second clickstop), it indicates that one or more of the
tail lights are burned out.
If it comes on when the brake pedal is depressed, one or more
stop lights are burned out.
Have defective bulbs replaced as soon as possible.
(m) Low Fuel Level Warning Light
This light comes on when the fuel level in the tank becomes
nearly empty. 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.
(n) ªTRAC OFFº Indicator / Warning Lights
This light comes on when the ignition key is turned to ªONº, and
will go off after a few seconds. This means that the system is
operating properly.
If one 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 after the ignition key is turned
to ªONº.
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