1998 Lexus ES300 maintenance

STARTING AND DRIVING133

Keep your engine in good running order. Malfunctions in the engine
electrical system, electronic ignition system/distributor ignition
system or fuel system could cause an extremely high three±way
catalytic converter/warm up three±way catalytic converter
temperature.
 If the engine becomes difficult to start or stalls frequently, take your
vehicle in for a check±up as soon as possible. Remember, your Lexus
dealer knows your vehicle and its three±way catalytic converter/warm
up three±way catalytic converter system best.
 To ensure that the three±way catalytic converter /warm up three±way
catalytic converter and the entire emission control system operate
properly, your vehicle must receive the periodic inspections required
by the Lexus Maintenance Schedule. For scheduled maintenance
information, refer to the separate ºOwner's Manual Supplement/
Maintenance Scheduleº.
ENGINE EXHAUST CAUTION
CAUTION
Avoid inhaling the engine exhaust. It contains carbon
monoxide, which is a colorless and odorless gas. It can
cause unconsciousness or even death.
 Make sure the exhaust system has no holes or loose
connections. The system should be checked from time to
time. If you hit something, or notice a change in the sound
of the exhaust, have the system checked immediately.
 Do not run the engine in a garage or enclosed area except
for the time needed to drive the vehicle in or out. The
exhaust gases cannot escape, making this a particularly
dangerous situation.
 Do not remain for a long time in a parked vehicle with the
engine running. If it is unavoidable, however, do so only in
an unconfined area and adjust the heating or cooling
system to force outside air into the vehicle.
 Keep the trunk lid closed while driving. An open or
unsealed trunk lid may cause exhaust gases to be drawn
into the vehicle. If you must drive with the trunk lid open
to accommodate a large object, close the windows, open all
the dashboard vents and have the heating or cooling system
deliver fresh air into the vehicle by turning the fan to high
speed with the air intake control button in the OUTSIDE
AIR mode.

DRIVING TIPS
156
Brakes and safety chains
Lexus recommends trailers with brakes that conform to any
applicable federal and state/provincial regulations.
 A safety chain must always be used between the towing vehicle and the
trailer. Leave sufficient slack in the chain for turns. The chain should
cross under the trailer tongue to prevent the tongue from dropping to
the ground in case it becomes damaged or separated. For correct
safety chain procedures, follow the hitch or trailer manufacturer's
recommendations.
CAUTION
 If the total trailer weight exceeds 450 kg (1000 lb.), trailer
brakes are required.
 Never tap into your vehicle's hydraulic system as it will
lower its braking effectiveness.
 Never tow a trailer without using a safety chain securely
attached to both the trailer and the vehicle. If damage
occurs to the coupling unit or hitch ball, there is possible
danger of the trailer wandering over into another lane.
Tires
Ensure that your vehicle's tires are properly inflated. Adjust the tire
pressure to the recommended cold tire pressure indicated below:
Tire pressure, kPa (kgf/cm
2 or bar, psi)
Front 220 (2.2, 32)
Rear 220 (2.2, 32)
 The trailer tires should be inflated to the pressure recommended by the
trailer manufacturer in respect to the total trailer weight.
Trailer lights
Trailer lights must comply with federal, state/provincial and local
regulations. See your local recreational vehicle dealer or rental agency for
the correct type of wiring and relays for your trailer. Check for correct
operation of the turn signals and stop lights e ach time you hitch up. Direct
splicing may damage your vehicle's electrical system and cause a
malfunction of your lights.
Break±in schedule
 Lexus recommends that you do not tow a trailer with a new vehicle or a
vehicle with any new power train component (engine, transmission,
differential, wheel bearing, etc.) for the first 800 km (500 miles) of driving.
Maintenance
If you tow a trailer, your vehicle will require more frequent maintenance
due to the additional load. For this information, please refer to the
scheduled maintenance information in the ºOwner's Manual Supplement/
Maintenance Scheduleº.
 Retighten all fixing bolts of the towing ball and bracket after
approximately 1000 km (600 miles) of trailer driving.
Pre±towing safety check
Check that your vehicle remains level when a loaded or unloaded trailer is
hitched. Do not drive if the vehicle has an abnormal nose±up or
nose±down condition, and check for improper tongue load, overload, worn
suspension or other possible causes.
 Make sure the trailer cargo is securely loaded so that it cannot shift.
 Check that your rear view mirrors conform to any federal, state/provincial
or local regulation. If they do not, install required rear view mirrors\
appropriate for towing purposes.

DRIVING TIPS
160

Keep your vehicle tuned±up and in top shape. A dirty air cleaner,
improper valve clearance, dirty plugs, dirty oil and grease, brakes not
adjusted, etc. all lower engine performance and contribute to poor fuel
economy. For longer life of all parts and lower operating costs, keep all
maintenance work on schedule, and if you often drive under severe
conditions, see that your vehicle receives more frequent maintenance. (For
scheduled maintenance information, please refer to the separate ºOwner's
Manual Supplement/Maintenance Scheduleº.)
CAUTION
Never turn off the engine to coast down hills. Your power
steering and brake booster will not function without the
engine running. Also, the emission control system operates
properly only when the engine is running.

SECTION 5
179
MAINTENANCE
Maintenance requirements180
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General maintenance 181
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Does your vehicle need repairing? 184
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For scheduled maintenance information, please refer to the separate
ºOwner's Manual Supplement/ Maintenance Scheduleº.

MAINTENANCE
180
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, Owner's
Manual Supplement 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 the ºOwner's Manual
Supplement/Maintenance Scheduleº are those required to be serviced at
regular intervals. For details of your maintenance schedule, read the separate ºOwner's Manual
Supplement/Maintenance Scheduleº.
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 r epair
establishment or individual without invalidating this warranty. See
Owner's Guide, Owner's Manual Supplement or Warranty Booklet for
complete warranty information.
Where to go for service?
Lexus technicians are well±trained specialists and are kept up to date wit\
h 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.

MAINTENANCE181
Your copy of the repair order is proof that all required maintenance has bee\
n
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 perfor\
med 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, Owner's Manual
Supplement 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 207 for additional
information.
Tire surface
Check the tires carefully for cuts, damage or excessive wear. See page 208
for additional information.
Wheel nuts
When checking the tires, make sure to check the nuts for looseness. Tighten\
them if necessary.

MAINTENANCE
182
Tire rotation
Rotate the tires every 12000 km (7500 miles). See page 208 for additional
information.
Fluid leaks
Check underneath for leaking fuel, oil, water or other fluid after the vehicl\
e
has been parked for a while. If you smell fuel fumes or notice any leak, h\
ave
the cause found and corrected immediately.
Doors and engine hood
Check
that all doors, including trunk lid, operate smoothly and all latches lo\
ck
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 o\
ther
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. 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 operat\
e
properly and smoothly. Make sure the belt webbing is not cut, frayed, worn
or damaged.

MAINTENANCE183
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 one side when appl\
ied.
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 ºParkº mechanism
Check the lock release button of the selector lever for proper and smooth
operation. On a safe incline, check that your vehicle is held securely with the
selector lever in ºPº 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 227 for additional
information.
Engine coolant level
Make sure the coolant level is between the ºFULLº and ºLOWº line\
s on the
see±through reservoir when the engine is cold. See page 201 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 219 for additional
information.
Brake fluid level
Make sure the brake fluid level is correct. See page 205 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 198 for additional information.