battery Lexus IS300 2005 Basic Functions / LEXUS 2005 IS300 (OM53489U) Owner's Guide

MAINTENANCE
309
Where to go for service?
Lexus technicians are well±trained specialists and are kept up
to date with the latest service information through technical
bulletins, service tips, and in±dealership training programs.
They are well informed about the operation of all the systems
on your vehicle.
You can be confident that your Lexus dealer's service
department performs the best job to meet the maintenance
requirements of your vehicle.
Your copy of the repair order is proof that all required
maintenance has been performed for warranty coverage. If
any problems should arise with your vehicle while under
warranty, your Lexus dealer will promptly take care of it. Again,
be sure to keep a copy of the repair order for any service
performed on your Lexus.
What about do±it±yourself maintenance?
Many of the maintenance items are easy to do yourself, if you
have a little mechanical ability and a few basic automotive
tools. Simple instructions for how to perform them are
presented in Section 6.
If you are a skilled do±it±yourself mechanic, the Lexus service
manuals are recommended. Please be aware that
do±it±yourself maintenance can affect your warranty
coverage. See ªOwner's Guideº, ªOwner's Manual
Supplementº or ªWarranty Bookletº for the details.
GENERAL MAINTENANCE
Listed below are the general maintenance items that should be
performed at the intervals specified. It is recommended that
any problem you notice be brought to the attention of your
Lexus dealer or qualified service shop for their advice.
CAUTION
Make these checks only with adequate ventilation if you
run the engine.
Engine compartment
Items listed below should be checked from time to time,
e.g. each time when refueling.
Washer fluid
Make sure there is sufficient fluid in the tank. See page 386 for
additional information.
Engine coolant level
Make sure the coolant level is between the Upper and Lower
lines on the see±through reservoir when the engine is cold.
See page 337 for additional information.
Battery
Your Lexus has a maintenance free battery. You do not have
to add distilled water. For longer life of the battery, however,
see page 380 for additional information.
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MAINTENANCE
313
EMISSIONS INSPECTION AND
MAINTENANCE (I/M) PROGRAMS
Some states have vehicle emission inspection programs
which include OBD (On±Board Diagnostics) checks.
The OBD system monitors the operation of the emission
control system. When the OBD system determines that a
problem exists somewhere in the emission control system, the
malfunction indicator lamp comes on. In this case, your vehicle
may not pass the I/M test and need to be repaired. Contact
your Lexus dealer to service the vehicle.
Even if the malfunction indicator lamp does not come on, your
vehicle may not pass I/M test as readiness codes have not
been set in the OBD system.
Readiness codes are automatically set during ordinary driving.
However, when the battery is disconnected or run down, the
codes are erased. Also, depending on your driving habits, the
codes may not be completely set.
Also, if the malfunction indicator lamp had come on recently
due to temporary malfunction such as a loose fuel tank cap,
your vehicle may not pass the I/M test.
The malfunction indicator lamp will go off after taking several
driving trips, but the error code in the OBD system will not be
cleared unless about 40 trips or more are taken.
If your vehicle does not pass the I/M test as readiness codes
have not been set, contact your Lexus dealer to prepare the
vehicle for re±testing.
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INTRODUCTION
318
ENGINE COMPARTMENT OVERVIEW
1Battery
2Fuse box
3Engine oil filler cap
4Engine oil leveldipstick
5Brake fluid reservoir
6Washer fluid tank
7Power steering fluidreservoir
8Engine coolantreservoir
9Electric cooling fans
10Condenser
11Radiator
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SV61007a

INTRODUCTION
319
DO±IT±YOURSELF SERVICEPRECAUTIONS
If you perform maintenance yourself, be sure to follow the
correct procedure given in this Section.
You should be aware that improper or incomplete servicing
may result in operating problems.
Performing do±it±yourself maintenance during the warranty
period may affect your warranty coverage. Read the separate
Lexus Warranty statement for details and suggestions.
This Section gives instructions only for those items that are
relatively easy for an owner to perform. As explained in Section
5, there are still a number of items that must be performed by
a qualified technician with special tools.
For information on tools and parts for do±it±yourself
maintenance, see ªParts and toolsº on page 320.
Utmost care should be taken when working on your vehicle to
prevent accidental injury. Here are a few precautions that you
should be especially careful to observe:
CAUTION

When the engine is running, keep hands, clothing,
and tools away from the moving fan and engine drive
belt. (Removing rings, watches, and ties is
advisable.)

Right after driving, the engine compartment ± the
engine, radiator, exhaust manifold and power
steering fluid reservoir, etc. ± will be hot. So be
careful not to touch them. Oil and other fluids may
also be hot.

Do not leave anything that may burn easily, such as
paper or rags, in the engine compartment.

Do not smoke, cause sparks or allow open flames
around fuel or the battery. Their fumes are flammable.

Do not get under your vehicle with just the body jack
supporting it. Always use automotive jack stands or
other solid supports.

Be sure the ignition is off if you work near the electric
cooling fan or radiator grille. With the ignition on, the
electric cooling fan may automatically start to run if
the air conditioning is on and/or if the coolant
temperature is high.

Use eye protection whenever you work on or under
your vehicle where you may be exposed to flying or
falling material, fluid spray, etc.

Be extremely cautious when working on the battery.
It contains poisonous and corrosive sulfuric acid.
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INTRODUCTION
320
NOTICE

Remember that battery and ignition cables carry high
currents or voltages. Be careful of accidentally causing a short circuit.

Add only ªT oyota Super Long Life Coolantº or similar
high quality ethylene glycol based non±silicate, non± amine, non±nitrite, and non±borate coolant withlong±life hybrid organic acid technology to fill theradiator. ªToyota Super Long Life Coolantº is a mix-ture of 50% coolant and 50% deionized water (for the
U.S.A.) or 55% coolant and 45% deionized water (forCanada).

If you spill some of the coolant, be sure to wash it offwith water to prevent it from damaging the parts orpaint.

Before closing the engine hood, check to see that you
have not forgotten any tools, rags, etc.

Do not drive with the air cleaner removed, or excessive engine wear could result. Also backfiringcould cause a fire in the engine compartment.

Do not overfill automatic transmission fluid, or thetransmission could be damaged.

Be careful not to scratch the glass surface with thewiper frame.
PARTS AND TOOLS
Here is a list of parts and tools you will need to perform
do±it±yourself maintenance. Remember all Lexus parts are
designed in metric sizes, so your tools must be metric.
CHECKING THE ENGINE OIL LEVEL
Parts (if level is low):

ªToyota Genuine Motor Oilº or equivalent
Oil grade: API grade SL ªEnergy±Conservingº or ILSAC
multigrade engine oil. For recommended oil viscosity, see page 335.
Tools:

Rag or paper towel

Funnel (only for adding oil)
CHECKING THE ENGINE COOLANT LEVEL
Parts (if level is low):

ªToyota Super Long Life Coolantº or similar high quality
ethylene glycol based non±silicate, non±amine, non±nitrite,
and non±borate coolant with long±life hybrid organic acid technology.
ªToyota Super Long Life Coolantº is a mixture of 50%
coolant and 50% deionized water (for the U.S.A.) or 55% coolant and 45% deionized water (for Canada).
Tools:

Funnel (only for adding coolant)
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INTRODUCTION
321
CHECKING BRAKE FLUID
Parts (if level is low):

FMVSS No. 116 DOT 3 or SAE J1703 brake fluid
Tools:

Funnel (only for adding fluid)
CHECKING POWER STEERING FLUID
Parts (if level is low):

Automatic transmission fluid DEXRON
II or III
Tools:

Rag or paper towel

Funnel (only for adding fluid)
CHECKING BATTERY CONDITION
Tools:

Warm water

Baking soda

Grease

Conventional wrench (for terminal clamp bolts)
CHECKING AND REPLACING THE BLADE
TYPE FUSES
Parts (if replacement is necessary):

Fuse with same amperage rating as original
CHECKING THE CARTRIDGE TYPE FUSES
Parts (if replacement is necessary):

Genuine Lexus fuse or equivalent with same amperage
rating as original
ADDING WASHER FLUID
Parts:

Water

Washer fluid containing antifreeze (for winter use)
Tools:

Funnel
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ENGINE
328± COOLING SYSTEM
Capacity
7.5 L (7.9 qt., 6.6 lmp.qt.)
Coolant typeªToyota Super Long Life Coolantº or similar high quality ethylene glyco\
l
based non±silicate, non±amine, non±nitrite, and non±borate c\
oolant 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.
NOTE:
ªToyota Super Long Life Coolantº is used in your Lexus vehicle at facto\
ry fill. In order to avoid technical problems, only use ªToyota
Super Long Life Coolantº 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 combin\
ation of low
phosphates and organic acids.) Do not use plain water alone. Please con\
tact your Lexus dealer for further details.
± FUEL
Fuel type
Unleaded gasoline only
Octane rating91 (Research octane number 96) or higher
± IGNITION SYSTEMSpark plug ± Make DENSO ± Gap
SK16R±P11
1.1 mm (0.043 in.)
± ELECTRICAL SYSTEM
Battery ± Open voltage at 20 C (68F):
Charging rates
12.7 V Fully charged
12.3 V Half charged
11.9 V Discharged
[Voltage that is checked 20 minutes after the key is removed with all the
lights turned off]
5A max.
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CHASSIS
363
Tire related termMeaning
Normal occupant weight68 kg (150 lb.) times the number of occupants specified in the second \
column of
Table 1 that follows.
Production options weight
the combined weight of those installed regular production options weighi\
ng over
2.3 kg (5 lb.) in excess of those standard items which they replace, n\
ot previously
considered in curb weight or accessory weight, including heavy duty brak\
es, ride
levelers, roof rack, heavy duty battery, and special trim
Vehicle capacity weight
(Total load capacity)the rated cargo and luggage load plus 68 kg (150 lb.) times the vehicl\
e's
designated seating capacity
Intended outboard
sidewall
(a) the sidewall that contains a whitewall, bears white lettering or bearsmanufacturer, brand, and/or model name molding that is higher or deeper than
the same molding on the other sidewall of the tire, or
(b) the outward facing sidewall of an asymmetrical tire that has a particula\
r side that must always face outward when mounted on a vehicle.
Occupant distributiondistribution of occupants in a vehicle as specified in the third column \
of Table 1 that
follows.
Rima metal support for a tire or a tire and tube assembly upon which the ti\
re beads are
seated
Rim diameter
(Wheel diameter)nominal diameter of the bead seat
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SECTION 6 ± 4
375
SERVICE PROCEDURES AND
SPECIFICATIONS
Electrical components
Specifications376
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking battery condition 380
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . . . .
Battery recharging precautions 382
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . .
Checking and replacing the blade type fuses 383
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . .
Checking the cartridge type fuses 385
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . .
Adding washer fluid 386
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Checking the headlight aim 387
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . . . .
Replacing light bulbs 388
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. . . . . . . . . . . . . . . . . . . . . . . . . .
04 06.30

ELECTRICAL COMPONENTS
380
CHECKING BATTERY CONDITION
Precautions
CAUTION
BATTERY PRECAUTIONS
The battery produces flammable and explosive
hydrogen gas.
Do not cause a spark by contacting the battery
terminals with tools.
 Do not smoke or light a match near the battery.
The electrolyte contains poisonous and corrosive
sulfuric acid.
 Avoid contact with eyes, skin or clothes.
 Never inhale or swallow electrolyte.
 Wear protective safety glasses when working near
the battery.
 Keep children away from the battery.
EMERGENCY MEASURES
 If electrolyte gets in your eyes, flush your eyes with
clean water immediately and get immediate medical
attention. If possible, continue to apply water with a
sponge or cloth while traveling to the medical office.
If electrolyte gets on your skin, thoroughly wash the
contacted area. If you feel a pain or burn, get medical
attention immediately.
 If electrolyte gets on your clothes, there is a
possibility of its soaking through to your skin, so
immediately take off the exposed clothing and follow
the procedure above, if necessary.
 If you accidentally swallow electrolyte, drink a large
quantity of water or milk. Follow with milk of
magnesia, beaten raw egg or vegetable oil. Then go
immediately for emergency help.
04 06.30