service indicator Lexus IS300 2005 Basic Functions / LEXUS 2005 IS300 (OM53489U) User Guide

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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56
The light remains on after the ignition key is turned to ªONº.
 The light comes on with the normal driving mode while
driving.
 The light flashes.
(o)ªVSCº Warning Light (With vehicle stability
control system)
This light warns that there is a problem somewhere in the
vehicle stability control system or traction control system.
The light will come on when the ignition key is turned to the
ªONº position and will go off after a few seconds.
If the light comes on while driving, the vehicle stability control
system and traction control system do not work. However, as
conventional braking operates when applied, there is no
problem to continue your driving.
In the following cases, contact your Lexus dealer:
The light does not come on after the ignition key is turned
to the ªONº position.
 The light remains on after the ignition key is turned to the
ªONº position.
 The light comes on while driving.
The ªTRAC OFFº indicator / warning light will come on when
the ªVSCº warning light comes on even if the ªTRAC OFFº
switch is not pushed.
(p) Automatic Headlight Leveling System Warning Light
This light warns that when there is a problem somewhere in the
automatic headlight leveling system.
The light will come on when the ignition key is turned to the
ªONº position, and will go off after a few seconds.
If it comes on while driving, have your vehicle checked by your
Lexus dealer.
(q) 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 ªACCº or
ªLOCKº position.
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GAUGES, METERS AND SERVICE REMINDER INDICATORS
57
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 ªACCº.
The following service reminder indicator should come on. It
goes off after about 6 seconds.
4. Turn the ignition key to ªONº.
The following service reminder indicators should come on.


or
or

or
The following service reminder indicators go off after a few
seconds.
or

The lights other than the slip indicator light may stay on for
about 60 seconds after the engine is started. It is normal if they
go out after a while.
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.
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GAUGES, METERS AND SERVICE REMINDER INDICATORS
58
INSTRUMENT PANEL LIGHTCONTROL
SV13019
To adjust the brightness of the instrument panel lights,
turn the knob.
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OCCUPANT RESTRAINT SYSTEMS
122
NOTICE
Do not perform any of the following changes withoutconsulting your Lexus dealer. Such changes caninterfere with proper operation of the seat beltpretensioners in some cases.
Installation of electronic devices such as a mobiletwo±way radio, cassette tape player or compact disc
player.
Repairs on or near the front seat belt retractor assemblies.
Modification of the suspension system.
Modification of the front end structure.
Attachment of a grille guard (bull bar, kangaroo bar,etc.), snowplow, winches or any other equipment tothe front end.
Repairs made on or near the front fenders, front endstructure or console.
SV16061
This indicator comes on when the ignition switch is turned
to the ªACCº or ªONº position. It goes off after about 6
seconds. This means the seat belt pretensioners are
operating properly.
The warning light system monitors the airbag sensor
assembly, front airbag sensors, side and curtain shield airbag
sensors, seat belt pretensioner assemblies, inflators, warning
light, interconnecting wiring and power sources. (For details,
see ªService reminder indicators and warning buzzersº on
page 48.)
If any of the following conditions occurs, this indicates a
malfunction of the airbags or seat belt pretensioners. Contact
your Lexus dealer as soon as possible.
 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.
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131
SV16061
The indicator comes on when the ignition switch is turned
to the ªACCº or ªONº position. It goes off after about 6
seconds. This means the SRS front airbags are operating
properly.
This warning light system monitors the airbag sensor
assembly, front airbag sensors, side and curtain shield airbag
sensors, seat belt pretensioner assemblies, inflators, warning
light, interconnecting wiring and power sources. (For details,
see ªService reminder indicators and warning buzzersº on
page 48.)If any of the following conditions occurs, this indicates a
malfunction of the airbags or seat belt pretensioners. Contact
your Lexus dealer as soon as possible.

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 front airbags have a
problem. If the light flashes, the side and curtain shield airbags
have a problem.
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OCCUPANT RESTRAINT SYSTEMS
139
NOTICE
Do not perform any of the following changes withoutconsulting your Lexus dealer. Such changes caninterfere with proper operation of the SRS side airbagand curtain shield airbag system in some cases.
Installation of electronic devices such as a mobiletwo±way radio, cassette tape player or compact disc
player.
Modification of the suspension system.
Modification of the side structure of the passenger compartment.
Repairs made on or near the console or front seat.
SV16061
The indicator comes on when the ignition switch is turned
to the ªACCº or ªONº position. It goes off after about 6
seconds. This means the SRS side airbags and curtain
shield airbags are operating properly.
The warning light system monitors the airbag sensor
assembly, front airbag sensors, side and curtain shield airbag
sensors, seat belt pretensioner assemblies, inflators, warning
light, interconnecting wiring and power sources. (For details,
see ªService reminder indicators and warning buzzersº on
page 48.)
If any of the following conditions occurs, this indicates a
malfunction of the airbags or seat belt pretensioners. Contact
your Lexus dealer as soon as possible.
 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.
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