service indicator Lexus GX470 2004 Pictorial Index / LEXUS 2004 GX470 FROM SEP. 2004 PROD. (OM60B57U) User Guide

GAUGES, METERS AND SERVICE REMINDER INDICATORS
65
Any of the following conditions may occur, but do not
indicate the malfunction:

The light may stay on for about 60 seconds after the ignition
key is turned to the ONº position. It is normal if it turns off
after a while.
 Depressing the brake pedal repeatedly may turn on the
warning light and buzzer. It is normal if the light turns off and
the buzzer stops sounding after a few seconds.
 You may hear a small sound in the engine compartment
after the engine is started or the brake pedal is depressed
repeatedly. This is a pump pulsating sound of the brake
system, and it is not a malfunction.
(b) Driver's Seat Belt Reminder Light and Buzzer
This light and buzzer remind you to buckle up the driver's seat
belt.
Once the ignition key is turned to ONº or STARTº, 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 Belt Reminder Light
This light reminds you to buckle up the front passenger's seat
belt.
Once the ignition key is turned to ONº or STARTº, 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 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 come on.

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66
(d) SRS Warning Light
The indicator comes on when the ignition key is turned to
the ONº position. It goes off after about 6 seconds. This
means the SRS airbags and front seat belt pretensioners
are operating properly.
This warning light system monitors the airbag sensor
assembly, front airbag sensors, side and curtain shield airbag
sensor assemblies, curtain shield airbag sensor assemblies,
driver's seat position sensor, driver's seat belt buckle switch,
front seat belt pretensioner assemblies, inflators, warning light,
RSCA OFFº indicator 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 when the ignition key is turned
to the ONº position or remains on for more than 6 seconds
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 have a problem. If the light flashes, the side
and curtain shield airbags and/or seat belt pretensioners have
a problem.
(e) Malfunction Indicator Lamp
This lamp comes on when the ignition key is turned to the
ONº position and goes off after the engine starts. This
means that the warn ing 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.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
67
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 vehicle 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 key is
turned to ACCº or LOCKº 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 Emissions inspection and maintenance (I/M)
programsº on page 538.
(f) ABSº Warning Light
The light comes on when the ignition key is turned to the ONº
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 ABSº warning light is on (and the brake system
warning light is off), the following systems do not operate, but
the brake system still operates conventionally.

Anti-lock brake system
 Brake assist system
 Active traction control system
 Vehicle stability control system
 Downhill assist control system
 Hill-start assist control system
When the ABSº warning light is on (and the brake system
warning light is off), the anti-lock brake system does not
operate, so that the wheels will lock up during a sudden braking
or braking on slippery road surfaces.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
68If 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 ONº 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 ABSº 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.
Either of the following conditions may occur, but do not
indicate a malfunction:
 The light may stay on for about 60 seconds after the ignition
key is turned to the ONº position. It is normal if it turns off
after a while.
 Depressing the brake pedal repeatedly may turn on the
light. It is normal if it turns off after a few seconds.
(g) Open Door Warning Light
This light remains on until all the side doors and back door are
completely closed.
(h) Unengaged Parkº Warning Light
This light warns that the transmission Parkº mechanism is not
engaged. If the four-wheel drive control is in the Nº position
while the selector lever is in the Pº position, the transmission
will disengage and the wheels will not lock.
CAUTION
To restore the park function, shift the four-wheel drive
control out of Nº.

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69
(i) Automatic Transmission Fluid TemperatureWarning Light
This light warns that the automatic transmission fluid
temperature is too high. If this light comes on while you are driving, slow down and pull
off the road. Stop the vehicle at a safe place and put the
selector lever in Pº and leave the engine idling until the light
goes off. If the light goes off, you can start the vehicle again.
If the light does not go off, call a Lexus dealer or qualified repair
shop for assistance.
NOTICE
Continued driving with the warning light on may
damage the automatic transmission.

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70
(j) VSC TRACº Warning Light
This light warns that there is a problem somewhere in the
following.
Vehicle stability control system
 Active traction control system
 Downhill assist control system
 Hill-start assist control system
The light will come on when the ignition key turned to ONº, and
will go off after a few seconds.
It is not a malfunction that the warning light may stay on for 60
seconds after the ignition key is turned to the ONº position.
Depressing the brake pedal repeatedly may turn on the lights.
It is normal if they go out after a few seconds.
There is no problem when the VSC TRACº warning light
comes on when the brake actuator temperature becomes high.
If the light comes on while driving, the above mentioned
systems 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 warning light does not come on after the ignition key is
turned to ONº.
 The warning light remains on after the ignition key is turned
to ONº.
 The warning light comes on while driving.
(k) KDSSº Warning Light (vehicles with kinetic
dynamic suspension system)
This light warns that there is a problem somewhere in the
kinetic dynamic suspension system.
The light will come on when the ignition key is turned to the
ONº position and will go off after a few seconds.
If the light comes on while driving, bring your vehicle to your
Lexus dealer as soon as possible and have it checked.
(l) 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.

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71
NOTICE
Do not continue driving if the engine drive belt is brokenor loose.
(m) 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 Ð
even for one block. It may ruin the engine.

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72
(n) Engine Oil Replacement Reminder Light (for vehicles sold in U.S.A.)
This light reminds you when to replace the engine oil.
This light will come on when the ignition key is turned to ONº
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 ONº position. If you continue driving
without the engine oil replacement, and if the driving range
exceeds 8000 km (5000 miles), the light will come on after the
ignition key is turned to ONº 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 condition. If the light comes on, replace it as soon as
possible.
You need to reset the light after the engine oil replacement.
Reset the light by following the procedure below:
1. Turn the ignition key to the ACCº or LOCKº position with
the odometer reading shown. (For details, see Odometer and
trip meterº on page 61.)
2. Turn the ignition key to the ONº position while holding down
the trip meter reset knob.
Hold down the knob until the light goes off. Before the light
goes off, it illuminates for 3 seconds, flashes for 2 seconds and
illuminates for 1 second. If the system fails to reset, the light will remain flashing. In this
case, return to step 1 and try again.(o) Low Tire Pressure Warning Light
This light warns that the tire pressure of one or more of your
tires
(including the spare tire) is low. The light comes on when
the ignition key is turned to the ONº position. It goes off after
a few seconds. This indicates that the tire pressure warning
system is functioning properly.
If the warning light comes on, stop your vehicle in a safe place
as soon as possible and check that the inflation pressure of all
tires (including the spare tire) is as specified on the tire and
loading information label. (See Checking tire inflation
pressureº on page 578.) The light should go off a few minutes
after the tire pressure is adjusted.
If the warning light blinks, the tire pressure warning system
may be malfunctioning. Contact your Lexus dealer.
For details, see Tire pressure warning systemº on page 433.
(p) 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.

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73
(q) Low Washer Fluid Warning Light
This light comes on when the fluid level in the tank becomes
very low. Fill the tank as soon as possible.
(r) Key Reminder Buzzer
This buzzer reminds you to remove the key when you open the
driver's door with the ignition key in the ACCº or LOCKº
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. Place the four-wheel drive control lever in Nº position and
the selector lever in Pº position and turn the ignition key to
ACCº.
The following service reminder indicator should come on. It
goes off when you place the four-wheel drive control lever in
Hº or Lº position.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
744. Turn the ignition key to ONº.
The following service reminder indicators should come on.
or

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


The anti-lock brake system warning light, vehicle stability
control system off indicator light and vehicle stability control
system and active traction control system warning light may
stay on for about 60 seconds after the ignition key is turned to
the ONº position. It is normal if they go out after a while.
The following service reminder indicator should come on. It
goes off after about 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.