1999 LEXUS SC300 wheel

IN CASE OF AN EMERGENCY
2969. After
changing the wheel, check the air pr essure of the
replaced tire. Stow all the tools, jack and flat tire securely.
If the pressure of the replaced tire is low, drive slowly to the
nearest service station and fill to the correct pressure.
Do not forget to reinstall the tire valve cap as dirt and moisture
could get into the valve core and possible cause air leakage.
If the cap is missing, put a new one on as soon as possible.
This is the same procedure for changing or rotating your tires.
CAUTION
Before driving, make sure all the tools, jack and flat tire are
securely in place in their storage location to reduce the
possibility of personal injury during a collision or sudden
braking.

IN CASE OF AN EMERGENCY
297
IF YOUR VEHICLE NEEDS TOBE TOWED
If towing is necessary, we recommend you to have it done
by your Lexus dealer or a commercial tow truck service.
In consultation with them, have your vehicle towed using
either (a) or (b).
(a) Towing with a wheel lift type truck
(b) Using a flat bed truck
(c) Never tow with a sling type truck
Only when you cannot receive a towing service from a
Lexus dealer or commercial tow truck service, tow your
vehicle car efully in accordance with the instructions given
in º(d) Emergency towingº on page 303.
Proper equipment will help ensure that your vehicle is not
damaged while being towed. Commercial operators are
generally aware of the state/provincial and local laws
pertaining to towing.
Your vehicle can be damaged if it is towed incorrectly.
Although most operators know the correct procedure, it is
possible to make a mistake. To avoid damage to your vehicle,
make sure the following few precautions are observed. If
necessary, show this page to the tow truck driver.
TOWING PRECAUTIONS:
Use a safety chain system for all towing, and abide by the
state/provincial and local laws. The wheels and axle on the ground must be in good condition. If they are damaged, use
a towing dolly.

IN CASE OF AN EMERGENCY
298
(a) Towing with a wheel lift type truck

From front
Use a towing dolly under the rear wheels.
NOTICE
Never tow a vehicle with an automatic transmission from
the front with rear wheels on the ground, as this may
cause serious damage to the transmission.

From rear

IN CASE OF AN EMERGENCY
299
Place the ignition key in the ºACCº position.
NOTICE

Do not tow with the key removed or in the ºLOCKº
position, as the steering lock mechanism is not strong
enough to hold the front wheels straight.

When lifting wheels, take care to ensure adequate
ground clearance for towing at the opposite end of the
raised vehicle. Otherwise, the bumper and/or
underbody of the towed vehicle will be damaged
during towing.
(b) Using a flat bed truck

IN CASE OF AN EMERGENCY
304If towing is necessary, we recommend you to have it done
by your Lexus dealer or a commercial tow truck service.
If towing service is not available in an emergency, your
vehicle may be temporarily towed by a cable or chain
secured to the emergency towing eyelet. Use extreme
caution when towing the vehicle.
A driver must be in the vehicle to steer it and operate the
brakes.
Towing in this manner may be done only on hard±surfaced
roads
for a short distance and at low speeds. Also, the wheels,
axles, drive train, steering and brakes must all be in good
condition.

MAINTENANCE
312
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 363 for additional information.
Tire surface
Check the tires carefully for cuts, damage or excessive wear.
See page 365 for additional information.
Wheel nuts
When checking the tires, make sure to check the nuts for
looseness. Tighten them if necessary. Tire rotation
Rotate the tires every 12000 km (7500 miles). See page 365
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.

MAINTENANCE
313
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. 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 s uch 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 ef fort
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 applied.
Parking brake
Check that the lever 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
On a safe incline, check that your vehicle is held securely with
the selector lever in ºPº position and all brakes released.

SECTION 6 ± 3
353
SERVICE PROCEDURES AND
SPECIFICATIONS
Chassis
Specifications (SC400) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
355
Specifications (SC300) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
357
Checking brake fluid. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
359
Checking power steering fluid . . . . . . . . . . . . . . . . . . . . . . . .
361
Checking tire pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
363
Rotating tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. .
365
Checking and replacing tires . . . . . . . . . . . . . . . . . . . . . . . . . .
365
Installing snow tires and chains . . . . . . . . . . . . . . . . . . . . . . .
369
Replacing wheels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
372
Aluminum wheel precautions . . . . . . . . . . . . . . . . . . . . . . . . .
372
Suspension and chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .