oil Lexus GS430 2006 Scheduled Maintenance Guide / LEXUS 2006 GS430/GS300 FROM JAN. 2006 PROD. OWNER'S MANUAL (OM30786U)

IMPORTANT INFORMATION ABOUT YOUR LEXUS
ivLexus will not disclose the data recorded in an EDR to a third
party except when:

An agreement from the vehicle’s owner (or the leasing
company for a leased vehicle) is obtained
 Officially requested by the police or other authorities
 Used as a defense for Lexus in a law suit
 Ordered by the court
However, if necessary Lexus will:
 Use the data for research on Lexus vehicle safety
performance
 Disclose the data to a third party for research purposes
without disclosing details of the vehicle owner, and only
when it is deemed necessary
 Disclose summarized data cleared of vehicle identification
information to a non −Lexus organization for research
purposes
New vehicle warranty
Your new vehicle is covered by the following Lexus limited
warranties:
 New vehicle warranty
 Emission control systems warranty
 Others
For further information, please refer to the “Owner’s Guide”,
“Owner’s Manual Supplement” or “Warranty Booklet”.
Your responsibility for maintenance
It is the owner’s responsibility to make sure the specified
maintenance is performed. Section 5 of this Owner’s Manual
gives details of these maintenance requirements. Included in
Section 6 is general maintenance. For scheduled
maintenance information, please refer to the “Owner’s Manual
Supplement / Scheduled Maintenance”.
Important health and safety information about
your Lexus
CAUTION
 WARNING: Engine exhaust, some of its constituents,
and a wide variety of automobile components
contain or emit chemicals known to the State of
California to cause cancer and birth defects and
other reproductive harm. In addition, oils, fuels and
fluids contained in vehicles as well as waste
produced by component wear contain or emit
chemicals known to the State of California to cause
cancer and birth defects or other reproductive harm.
 Battery posts, terminals and related accessories
contain lead and lead compounds. W ash your hands
after handling. Used engine oil contains chemicals
that have caused cancer in laboratory animals.
Always p rotect your skin by washing thoroughly with
soap and water.

GAS STATION INFORMATION
Fuel selection:
Premium unleaded gasoline with an Octane Rating of 91
(Research Octane Number 96) or higher required for
optimum engine performance. However, if such premium
type cannot be obtained, you may use unleaded gasoline
with an Octane Rating as low as 87 (Research Octane
Number 91).
 Fuel tank capacity:
71 L (18.7 gal., 15.6 lmp.gal.)
 Engine oil:
“Toyota Genuine Motor Oil” or equivalent
Oil grade: ILSAC multigrade engine oil.
Recommend oil viscosity − SAE 5W−30 if normal
temperatures are below 38 C (100F)
Oil capacity: L (qt., lmp.qt.)
Drain and refill with filter without filter GS430 5.1 (5.4, 4.5) 4.5 (4.8, 4.0)
GS300 (2WD) 6.3 (6.6, 5.5) 5.9 (6.2, 5.1)
GS300 (4WD) 6.4 (6.7, 5.6) 6.0 (6.3, 5.2)
See page 530 for detailed information.
 Engine coolant:
Capacity: GS430 − 10.1 L (10.7 qt., 8.9 lmp.qt.)
GS300 − 9.1 L (9.6 qt., 8.0 lmp.qt.) Coolant type −
”Toyota Super Long Life Coolant” or similar
high quality ethylene glycol based non −silicate, non −amine,
non−nitrite, and non −borate coolant with long −life hybrid
organic acid technology (Coolant with long −life hybrid
organic acid technology is a combination of low phosphates
and organic acids.)
Do not use plain water alone.
For checking the engine coolant, see page 534.
 Automatic transmission:
Fluid type − “Toyota Genuine ATF Type WS”
See page 540 or 544 for detailed information.
 Tire information:
See page 548 through 570 for detailed information.
 Tire inflation pressure:
Tire size: GS430 − 245/40R18 93Y or P245/40R18 93V
GS300 − 225/50R17 94W or P225/50R17 93V
Tire inflation pressure:
Front 230 kPa (2.3 kgf/cm
2 or bar, 33 psi)
Rear 230 kPa (2.3 kgf/cm2 or bar, 33 psi)
For sustained high speeds above 160 km/h (100 mph), in
countries where such speeds are permitted by law, add the
tire inflation pressure given below to the front tires and rear
tires, but never exceed the maximum cold tire inflation
pressure molded on the tire sidewall.
GS430 60 kPa (0.6 kgf/cm
2 or bar, 9 psi)
GS300 50 kPa (0.5 kgf/cm2 or bar, 7 psi)

cm2
Maintenance procedures for the engine, chassis,
body, electrical system, and more, are clearly
explained and illustrated.
Periodic maintenance and tuneup
Periodic maintenance and tuneup helps to prevent small
problems from growing into larger ones later on. The repair
manual outlines exactly what maintenance is required and
clearly explains how to do the work yourself stepbystep.
Areas covered include such things as spark plug replacement,
valve clearance adjustment and engine oil and filter
replacement.
Where to obtain the Repair Manual
The repair manual for GS430, GS300 may be purchased from
any Lexus dealer or call the Material Distribution Center. To
purchase the repair manual, please contact your Lexus dealer
or the Material Distribution Center tollfree at
18006222033.

KEYS AND DOORS
9
CAUTION
People with implanted pacemakers or cardiac de-
fibrillators should keep away from the smart ac-
cess system antennas, because the radio waves
may affect the operation of such devices. For the
antenna locations, see “Antenna locations” on
page 28.
 Users of any electrical medical device other than
implanted pacemakers and implanted cardiac de-
fibrillators should consult the manufacturer of the
device for information about its operation under
the influence of radio waves. Radio waves could
have unexpected effects on the operation of such
medical devices.
 If necessary, the entry functions can be deactivated.
Ask your Lexus dealer for details.
NOTICE
When using an electronic key, observe the following
precautions:
Do not af fix any material that cuts off electromagnetic
waves (such as a metal seal) on the electronic key.
 Do not knock the electronic key hard against other
objects.
 Do not leave the electronic key exposed to high
temperatures for a long period, such as on the
dashboard or hood under direct sunlight.
 Do not put the electronic key in water or wash it in an
ultrasonic washer.
 Do not keep the electronic key together with the
products emitting electromagnetic waves such as a
cellular phone.
 Do not disassemble the electronic key.
 Do not place the electronic key near electrical
appliances (e.g. television, computer or stereo) or
electrical medical equipment such as low frequency
medical appliances.
 If gasoline, polishing agents or oil adheres to the
electronic key, it may deform or crack over time.

KEYS AND DOORS
36
NOTICE
Make sure the positive side and negative side of the
battery are faced correctly.
 Do not replace the battery with wet hands. Water may
cause unexpected rust.
 Do not touch or move any components inside the
transmitter, or it may interfere with proper operation.
 Be careful not to bend the electrode when inserting
the battery and that dust or oils do not adhere to the
inside of the module.
5. After replacing the battery, be sure to return the mechanical
key to its original position.
DOORS
See page 20 for locking the doors with entry function and
page 23 for unlocking them with entry function.
Locking with a mechanical key
G11001
 1 Lock 2Unlock
Turn the mechanical key towards the front of the vehicle
to lock and towards the back to unlock.
The doors lock and unlock simultaneously with the driver’s
door. T urning the mechanical key once will unlock the driver’s
door and twice in succession will unlock all doors
simultaneously.*
NOTE:
*The 2step unlocking function can be changed.
Ask your Lexus dealer for details.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
88
Rear Lights System Failure Warning
G13011
If there is a problem in the rear lights system (tail lights,
license plate light, stop lights, rear side marker light, high
mounted stoplight), the master warning light comes on, a
warning tone sounds and the above message appears.
If the above warning message appears, have your vehicle
checked by your Lexus dealer as soon as possible.
 Low Washer Fluid Warning
G13020
When the fluid level in the tank becomes very low, the
master warning light flashes, a warning tone sounds and
the above message appears.
Fill the tank as soon as possible.
 Low Engine Oil Pressure Warning
G13012
When the engine oil pressure becomes too low, the
master warning light flashes, a warning tone sounds and
the above message appears.
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 while this warning message is
displayed even for one block. It may ruin the engine.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
89
Low Engine Oil Level Warning
G13022
When the engine oil level is too low, the master warning
light comes on, a warning tone sounds, and the above
message appears.
Add oil as soon as possible. (For instructions, see “Checking
the engine oil level” on page 530.)
While driving on steep inclines or rough roads which causes
the vehicle to substantially sway or on curves, this message
may appear due to the movement of engine oil in the engine.
In normal conditions, due to engine oil consumption, this
message may a ppear 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 “Facts about engine oil consumption” on page
528.)
NOTICE
Continued engine operation with low engine oil will
damage the engine.
 Engine Oil Maintenance Reset Warning (U.S.A.
only)
G13033
This message indicates that the engine oil maintenance
data has been reset. After replacing the engine oil, be sure
to reset the maintenance data.
To reset the data, perform the following operations:
1. Push the “ODO TRIP” switch in the switch box to
change the display to blank.
2. Turn the engine switch off.
3. Turn the engine switch on with the trip meter “RESET”
switch held down.
4. Keep pushing the “RESET” switch for longer than 7
seconds after the engine switch is turned on.
After the above operation, the master warning light comes
on, a warning tone sounds and the above message
appears to inform you that the engine oil maintenance
data has been reset.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
90
Engine Oil Replacement Reminder (U.S.A. only)
G13035
If the driving range exceeds 4,500 miles after the engine
oil maintenance data is reset, the master warning light
comes on, a warning tone sounds and the above message
appears for about 15 seconds when you select the engine
switch in “IGON” mode.
This message indicates that the engine oil should be replaced
soon. If the message appears, it is recommended to inspect
the engine oil with the engine switch off. For details about
inspection, see “Checking the engine oil level” on page 530.
If the engine oil level is low, engine oil should be replaced.
Have it replaced at your Lexus dealer.
After the engine oil replacement, reset the engine oil
maintenance data and make sure the “OIL MAINT RESET”
appears on the display.
NOTICE
The warning message on the display is based on the
driving range after the engine oil maintenance data
reset. This is not based on the monitoring of dirty
condition of the engine oil.
 Engine Oil Replacement Warning (U.S.A. only)
G13034
If the driving range exceeds 5,000 miles after the engine
oil maintenance data is reset, the master warning light
comes on, a warning tone sounds and the above message
appears.
This message indicates that the engine oil should be replaced
as soon as possible. If the message appears, it is
recommended to inspect the engine oil with the engine switch
off. For details about inspection, see “Checking the engine oil
level” on page 530.
If the engine oil level is low, engine oil should be replaced.
Have it replaced at your Lexus dealer.
After the engine oil replacement, reset the engine oil
maintenance data and make sure the “OIL MAINT RESET”
appears on the display.
NOTICE
The warning message on the display is based on the
driving range after the engine oil maintenance data
reset. This is not based on the monitoring of dirty
condition of the engine oil.

AUDIO
289

If a Mark Levinson brand audio system is installed:
G22066
Automatic sound levelizer (ASL):
When the audio sound becomes difficult to be heard due to
road noise, wind noise, etc. during driving, touch the “ASL”
switch. The system adjusts to the optimum volume and tone
quality according to the noise level.
When the system is on, the sound adjustment level is
displayed on the screen.
SURROUND:
If you touch “SURROUND”, surround sound will be enabled. (d) Your radio antenna
The wire antenna is mounted inside the rear window.
NOTICE

When cleaning the inside of the rear window, be
careful not to scratch or damage the wire antenna.
 Putting a film (especially a conductive or metallic
film) on the rear window may affect the reception of
radio or mobile telephone. For the installation of the
film, consult with your Lexus dealer.
(e) Your cassette player
When you insert a cassette, the exposed tape should be to the
right.
NOTICE
Never try to disassemble or oil any part of the cassette
player. Do not insert anything other than cassette tapes
into the slot.

AUDIO
290(f) Your automatic changer
G22046
This
vehicle is equipped with an automatic changer which can
store up to 6 discs, and play selected discs or continuously play
all the discs set in the player.
When you insert discs into the player, make sure their labels
face upward. If the disc is inserted incorrectly, the player will
display “CD CHECK” or “DISC CHECK”.
NOTICE
 Never try to disassemble or oil any part of the CD
player or DVD player. Do not insert anything other
than discs into the slot.
 Do not insert a disc upon another one, or it will
damage to the automatic changer. Insert only one
disc into the slot at a time.
Your CD player or DVD player is intended for use with 12 cm
(4.7 in.) discs only.
Radio operation
(a) Listening to the radio
G22009
Push “AM (AM·SAT)” or “FM” button to choose either an
AM or FM band.
The “AM”, “FM1” or “FM2” screen appears on the display\
.
If your vehicle is equipped with satellite radio broadcast
system, when you push the “AM·SAT” button, “AM”,
“SAT1”, “SAT2” or “SAT3” station appears on the display. For
details about satellite radio broadcast, see “Radio operation
(XM satellite radio broadcast)” on page 295