lexus LS400 1995 Air Conditioning and Audio / 1995 LS400: MAINTENANCE

SECTION 5
177
MAINTENANCE
Maintenance requirements178 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General maintenance179 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Does your vehicle need repairing?182 . . . . . . . . . . . . . . . . . . . . . . . . .
Scheduled maintenance182 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

MAINTENANCE
178
MAINTENANCE REQUIREMENTS
Your Lexus vehicle has been designed to have fewer
maintenance requirements with longer service intervals to
save both your time and money. However, each regular
maintenance as well as day−to−day care is more important
than ever before to ensure smooth, trouble−free, safe, and
economical driving.
It is the owner’s responsibility to make sure the specified
maintenance, including general maintenance services, is
performed. Note that both the new vehicle and emission
control system warranties specify that proper maintenance
and care must be performed. See the Owner’s Guide or
Warranty Booklet for complete warranty information.
General maintenance
General maintenance items are those day−to−day care
practices that are important to your vehicle for proper
operation. It is the owner’s responsibility to ensure that the
general maintenance items are performed regularly
These checks or inspections can be done either by yourself or
your Lexus dealer.
Scheduled maintenance
The scheduled maintenance items listed in this part are those
required servicing at regular intervals.However, under severe driving conditions, a separate
maintenance schedule that requires more frequent
maintenance service should be practiced
It is recommended that any replacement parts used for
maintenance or for the repair of the emission control
system be Lexus supplied.
The owner may elect to use non−Lexus supplied parts for
replacement purposes without invalidating the emission
control system warranty. However, use of replacement
parts which are not of equivalent quality may impair the
effectiveness of the emission control systems.
You may also elect to have maintenance, replacement, or
repair of the emission control devices and system
performed by any automotive repair establishment or
individual without invalidating this warranty. See Owner’s
Guide or Warranty Booklet for complete warranty
information.
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 − reliably and economically.

MAINTENANCE
179 Your copy of the repair order is proof that all required
maintenance has been performed for warranty coverage. And
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 your Owner’s Guide or Warranty Booklet 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 where adequate ventilation can
be obtained if you run the engine.
Vehicle exterior
Items listed below should be performed from time to time,
unless otherwise specified.
Tire pressure
Check the pressure with a gauge every two weeks, or at least
once a month and adjust as shown on the tire pressure label.
See page 212 for additional information.
Tire surface
Check the tires carefully for cuts, damage or excessive wear.
See page 214 for additional information.
Wheel nuts
When checking the tires, make sure to check the nuts for
looseness. Tighten them if necessary.

MAINTENANCE
180Tire rotation
Rotate the tires every 12000 km (7500 miles). See page 213
for additional information.
Fluid leaks
Check underneath for leaking fuel, oil, water or other fluid after
the vehicle has been parked for a while. If you smell fuel fumes
or notice any leak, have the cause found and corrected
immediately.
Doors and engine hood
Check that all doors, including trunk lid, operate smoothly and
all latches lock securely. Make sure the engine hood
secondary latch secures the hood when the primary latch is
released.
Vehicle interior
Items listed below should be checked regularly, e.g. while
performing periodic services, cleaning the vehicle, etc.
Lights
Make sure the headlight, stop lights, tail lights, turn signal
lights, and other lights are working. Check headlight aim.
Service reminder indicators and warning buzzers
Check that all service reminder indicators and warning
buzzers function properly.Steering wheel
Check that it has the specified freeplay. Be alert for changes
in steering condition, such as hard steering, excessive
freeplay or strange noise.
Seats
Check that all front seat controls such as seat adjusters,
seatback recliner, etc. operate smoothly and that all latches
lock securely in any position. Check that the head restraints
move up and down smoothly and that the locks hold securely
in any latched position.
Seat belts
Check that the seat belt system such as buckles, retractors
and anchors operate properly and smoothly. Make sure the
belt webbing is not cut, frayed, worn or damaged.
Accelerator pedal
Check the pedal for smooth operation and uneven pedal effort
or catching.
Brake pedal
Check the pedal for smooth operation and the proper
clearance and freeplay. Check the brake booster function.
Brakes
At a safe place, check that the brakes do not pull to ore side
when applied.

MAINTENANCE
181 Parking brake
Check that the pedal has the proper travel and that, on a safe
incline, your vehicle is held securely with only the parking
brake applied.
Automatic transmission “Park” mechanism
On a safe incline, check that your vehicle is held securely with
the selector lever in “P” position and all brakes released.
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 229 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 cool.
See page 205 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 224 for additional information.
Brake fluid level
Make sure the brake fluid level is correct. See page 210 for
additional information.Engine oil level
Check the level on the dipstick with the engine turned off and
the vehicle parked on a level spot. See page 203 for additional
information.
Power steering fluid level
Check the level on the dipstick. The level should be in the
“HOT” or “COLD” range depending on the fluid temperature.
See page 211 for additional information.
Exhaust system
Look for cracks, holes and loose supports. If you notice any
change in the sound of the exhaust or smell exhaust fumes,
have the cause located and corrected immediately. (See
engine exhaust cautions in Section 3−1.)

MAINTENANCE
182
DOES YOUR VEHICLE NEED
REPAIRING?
Be on the alert for changes in performance and sounds, and
visual tip−offs that indicate service is needed. Some important
clues are:

Engine missing, stumbling, or pinging

Appreciable loss of power

Strange engine noises

A fluid leak under the vehicle (However, water dripping from
the air conditioning after use is normal.)

Change in exhaust sound (This may indicate a dangerous
carbon monoxide leak. Drive with the windows open and
have the exhaust system checked immediately.)

Flat−looking tires, excessive tire squeal when cornering,
uneven tire wear

Vehicle pulls to one side when driving straight on a level
road

Strange noises related to suspension movement

Loss of brake effectiveness, spongy feeling brake pedal,
pedal almost touches floors, vehicle pulls to one side when
braking

Engine coolant temperature continually higher than normal
If you notice any of these clues, take your vehicle to your Lexus
dealer as soon as possible. It probably needs adjustment or
repair.
CAUTION
Do not continue driving with the vehicle unchecked. It
could result in serious vehicle damage and possibly
personal injury.
SCHEDULED MAINTENANCE
Driving conditions under which you mainly operate your
vehicle determine which maintenance schedule you
follow.
In order to ensure smooth, trouble−free, safe and economical
driving, Lexus provides two maintenance schedules to be
selected according to your driving conditions: schedules A and
B. The instructions on which schedule to follow are given on
the next page.
The service interval for scheduled maintenance is
determined by the odometer reading or the time interval,
whichever comes first, shown in the schedule.
The maintenance service beyond the last period should
be performed at the same intervals.
The service interval of each item can be obtained from the
maintenance schedule.

MAINTENANCE
183
Which schedule to follow?
If you mainly operate your vehicle under one or more of the
severe conditions below:

Towing a trailer, using a camper or car top carrier

Operating on dusty, rough, muddy or salt−spread roads

Repeated short trips less than 8 km (5 miles) and outside
temperatures remain below freezing

Extensive idling and / or low speed driving for long distances
such as police, taxi or door−to−door delivery useIf you mainly operate your vehicle under:
CONDITIONS OTHER THAN THOSE LISTED ON THE LEFT
Follow SCHEDULE A
Follow SCHEDULE B

MAINTENANCE
184SCHEDULE A
Maintenance operations:
A = Check and adjust as necessary; I = Inspect and correct or replace as necessary; R = Replace, change or lubricate.
Service interval
(Use odometer reading or
months. whichever comes first.)Maintenance services beyond 96,000 km (60,000 miles) should continue to be performed at the same intervals shown for each maintenance schedule.Km x 1,0001.66121824303642485460667278849096MonthsMiles x 1,00013.757.511.251518.7522.526.253033.7537.541.254548.7552.556.2560ENGINE COMPONENTS AND EMISSION CONTROL SYSTEMSTiming beltSee note (1)Valve clearanceAA: Every 72 monthsDrive belt See notes (2)II: See note (2)Engine oil and oil filterRRRRRRRRRRRRRRRRR: Every 6 monthsEngine coolant See note (3)RR: See note (3)Exhaust pipes and mountingsIIIII: Every 24 months
Air cleaner filterSee note (4)IIIIIIIRIIIIIIIRI: Every 6 months
R: Every 36 months
Fuel lines and connections See note (5)III: Every 36 monthsFuel tank cap gasketRR: Every 72 monthsSpark plugsRR: Every 72 monthsCharcoal canister See note (6)II: Every 72 months
Maintenance services indicated by a star () or asterisk () are required under the terms of the Emission Control Systems Warranty. See Owner’s Guide or Warranty
Booklet for complete warranty information.
 For vehicles sold in California, Massachusetts, New York, New Jersey. Connecticut, Pennsylvania, Vermont, Rhode Island and New Hampshire only
 For vehicles sold outside California, Massachusetts, New York. New Jersey, Connecticut, Pennsylvania. Vermont, Rhode Island and New Hampshire
NOTE:
(1) If you operate your vehicle under conditions of extensive idling and / or low speed driving for a long distance such as police, taxi or door to door delivery use, replace
every 96,000 km (60,000 miles). If not applicable, follow schedule B.
(2) After 96,000 km (60,000 miles) or 72 month, inspect every 12,000 kin (7,500 miles) or 12 months.
(3) After 72,000 kin (45.000 miles) or 36 months, replace every 48,000 km (30,000 miles) or 24 months.
(4) Applicable when operating mainly on dusty road. It not applicable, follow schedule B.
(5) Includes inspection of vapor vent system.
(6) Non−maintenance item except for California, Massachusetts, New York. New Jersey, Connecticut. Pennsylvania, Vermont, Rhode Island and New Hampshire.

MAINTENANCE
185 SCHEDULE A
Maintenance operations:
A = Check and adjust as necessary; I = Inspect and correct or replace as necessary; R = Replace, change or lubricate
Service interval
(Use odometer reading or
months, whichever comes first.)Maintenance services beyond 96,000 km (60,000 miles) should continue to be performed at the same intervals shown for each maintenance schedule.km x 1,0001.66121024303642485460667278849096MonthsMiles x I,00013.757.511.251518.1522.526.253033.7537.541.254548.7552.556.2560CHASSIS AND BODYBrake linings and drumsIIIIIIIII: Every 12 monthsBrake pads and discsIIIIIIIII: Every 12 monthsBrake fluidIIRIRR: Every 36 monthsBrake line pipes and hosesIIIII: Every 24 monthsSteering linkageIIIIIIIII: Every 17 monthsSRS airbagsAfter inspection at 10 years, inspect every 2yearsSteering gear box See note (7)IIIIII: Every 24 monthsBall joints and dust coversIIIIIIIII: Every 12 monthsAutomatic transmission and differentialIRRRRR: Every 24 months
Bolts and nuts on chassis and body
See note (8)IIIIIIIIII: Every 12 months
Body inspection (paint, corrosion)IIIIIIIIII: Every 12 months
Air conditioning filterIIIRIIIRIIIRIIIRI: Every 6 months
R: Every 24 months
ROAD TESTIIIIIIIIII: Every 12 months
NOTE:
(7) Inspect the steering gear housing for ca leakage only
(8) Applicable when operating mainly on rough and / or muddy roads. If not, follow schedule B.

MAINTENANCE
186SCHEDULE B
Maintenance operations:
A = Check and adjust as necessary; I = Inspect and correct or replace as necessary; R = Replace, change or lubricate.
Service interval
(Use odometer reading or
months, Whichever comes first.)Maintenance services beyond 96,000 km (60,000 miles) should continue to be performed at the same intervals shown for each maintenance schedule.km x 1,0001.61224364860728496MonthsMiles x 1,00017.51522.53037.54552.560ENGINE COMPONENTS AND EMISSION CONTROL SYSTEMSTiming beltReplace every 150,000 km (90,000 miles).Valve clearanceAA: Every 72 monthsDrive belt Sec note (1)II: See note (1)Engine oil and oil filterRRRRRRRRR: Every 12 monthsEngine coolant See note (2)RR: See note (2)Exhaust pipes and mountingsIII: Every 36 monthsAir cleaner filterRRR: Every 36 monthsFuel lines and connections See note (3)III: Every 36 monthsFuel tank cap gasketRR: Every 72 monthsSpark plugsRR: Every 72 monthsCharcoal Canister See note (4)Il: Every 72 months
Maintenance services indicated by a star () or asterisk () are required under the terms of the Emission Control Systems Warranty. See Owner’s Guide or Warranty
Booklet for complete warranty information.
 For vehicles sold in California. Massachusetts, New York. New Jersey, Connecticut, Pennsylvania, Vermont, Rhode Island and New Hampshire only
 For vehicles sold outside California, Massachusetts. New York, New Jersey, Connecticut. Pennsylvania, Vermont, Rhode Island and New Hampshire
NOTE:
(1) After 96,000 km (60,000 miles) or 72 months, inspect every 12,000 km (75,000 miles) or 12 months.
(2) After 72,000 km (115,000 miles) or 36 months, replace every 48,000 km (30,000 miles) or 24 months.
(3) Includes inspection of vapor vent system.
(4) Non−maintenance item except for California, Massachusetts, New York, New Jersey, Connecticut, Pennsylvania, Vermont, Rhode Island and New Hampshire.