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

IN CASE OF AN EMERGENCY
477
Use the jack only for lifting your vehicle during
wheel changing.
 Do not raise the vehicle with someone in the
vehicle.
 When raising the vehicle, do not put an object
on or under the jack.
 Raise the vehicle only high enough to remove
and change the tire.
NOTICE
Do not use liquid sealants for a flat tire as tire
pressure sensors will be damaged.
 Do not continue driving with a deflated tire.
Driving even a short distance can damage a tire
beyond repair.
 When the tires must be repaired and replaced,
have them repaired and replaced by your Lexus
dealer or an authorized tire dealer. The tire
pressure warning valves and transmitters will
be affected by the installation or removal of
tires.
 When the tires must be replaced, replace the
grommets for tire pressure warning vales and
transmitters as well.
Compact spare tire
G40025
The compact spare tire is designed for temporary
emergency use only.
The compact spare tire is identified by the distinctive
wording “TEMPORARY USE ONLY” molded into the
side wall of the tire.
To keep the compact spare tire noticeable, do not hide
the wheel by a wheel cover or such.
The compact spare tire saves space in your luggage
compartment, and its lighter weight helps to improve fuel
economy and permits easier installation in case of a flat
tire.

IN CASE OF AN EMERGENCY
478
The compact spare tire is not equipped with the tire
pressure warning valve and transmitter. If a tire goes
flat, the warning light will not turn off even though the flat
tire is replaced with the spare tire. Replace the spare tire
with the repaired tire and adjust the proper tire inflation
pressure. The tire pressure warning light will turn off
after a few minutes.
The compact spare tire can be used many times, if
necessary. It has tread life of up to 4800 km (3000 miles)
depending on road conditions and your driving habits.
When tread wear indicators appear on the tire, replace
the tire. (See “Checking and replacing tires” on page
563.)CAUTION
 The compact spare tire was designed especially
for your Lexus. Do not use it on any other
vehicle.
 Do not use more than one compact spare tire at
the same time.
 The pressure for the compact spare tire must be
420 kPa (4.3 kgf/cm
2, 4.2 bar, 60 psi).
 Do not exceed 80 km/h (50 mph) when driving
with the compact spare tire.
 Replace the compact spare tire with the
standard tire as soon as possible.
 Avoid sudden acceleration, sudden
deceleration and sharp turns with the compact
spare tire.

IN CASE OF AN EMERGENCY
479
NOTICE
Your ground clearance is reduced when the
compact spare tire is installed so avoid driving
over obstacles and drive slowly on rough,
unpaved roads and speed bumps. Also, do not
attempt to go through an automatic car wash as
the vehicle may get caught, resulting in damage.
Access to spare tire
G40003
1. Pull up the deck board.

IN CASE OF AN EMERGENCY
480
G40004
2. Lift up the back side of the board and secure the
board by hooking the lever at the top of the trunk lid
opening as shown.
Make sure the board is secured and does not fall down.
G40005
When closing the board, replace the hook also in its
original position as shown.
NOTICE
If you close the trunk lid with the board hooked,
the hook may be damaged.

IN CASE OF AN EMERGENCY
481
G40023
 1Wrench
2Towing eyelet (for emergency towing)
3Jack handle
4Screwdriver
5Spare tire
6Wrenches
7Pliers
8Jack
3. Get the jack, wrench and spare tire.
To prepare yourself for an emergency, you should
familiarize yourself with the use of the jack and each tool,
and their storage locations.
G40006
 1 Joint
2 When removing the jack, turn the joint by hand in the ”contract” direction until the jack is free.
3 When storing, turn the joint by hand in the”expand” direction until the jack is firmly secured
to prevent it from flying forward during a collision
or sudden braking.

IN CASE OF AN EMERGENCY
482
G40024
To remove the spare tire:
1Remove the luggage tray.
2Loosen the bolt and remove it.
When storing the spare tire, place it with the outer side
of the wheel facing up. Then bolt the tire in place and
install the luggage tool box to prevent the tire from flying
forward during a collision or sudden braking.
G40007
4. Block the wheel diagonally opposite the flat tire to
keep the vehicle from rolling when it is jacked up.
When blocking the wheel, place a wheel block in front of
one of the front wheels or behind one of the rear wheels.

IN CASE OF AN EMERGENCY
483
G40008
5. Loosen all the wheel nuts.
Always loosen the wheel nuts before raising the vehicle.
Turn the wheel nuts counterclockwise to loosen them.
To get maximum leverage, fit the wrench to the nut so
that the handle is on the right side, as shown above.
Grab the wrench near the end of the handle and pull up
on the handle. Be careful that the wrench does not slip
off the nut.
Do not remove the nuts yet − just unscrew them about
one−half turn.
CAUTION
Never use oil or grease on the bolts or nuts. The
nuts may loosen and the wheels may fall off, which
could cause a serious accident.
G40009
6. Position the jack at the jack points as shown.
Make sure the jack is positioned on a level and solid
surface.

IN CASE OF AN EMERGENCY
484
G40010
7. After making sure no one is in the vehicle, raise it
high enough so that the spare tire can be installed.
Allow for the fact that you need more ground clearance
when putting on the spare tire than when removing the
flat tire.
To raise the vehicle, insert the jack handle into the jack
(it is a loose fit) and turn it clockwise. As the jack touches
the vehicle and begins to lift, double −check that it is
properly positioned.
CAUTION
Never get under the vehicle when the vehicle is
supported by the jack alone.
G40011
8. Remove the wheel nuts and remove the flat tire.
Lift the flat tire straight off and put it aside.

IN CASE OF AN EMERGENCY
485
G40012
Before putting on the wheel, remove any corrosion on
the mounting surfaces with a wire brush or such.
Installation of wheels without good metal−to− metal
contact at the mounting surface can cause wheel nuts to
loosen and eventually cause a wheel to come off while
driving.
G40013
9. Reinstall all the wheel nuts finger tight.
Align the holes in the wheel with the bolts. Then lift up
the wheel and get at least the top bolt started through its
hole. Wiggle the tire and press it back over the other
bolts.
Reinstall the wheel nuts and tighten them as much as
you can by hand. Press the tire back and see if you can
tighten them more.
CAUTION
Never use oil or grease on the bolts or nuts. Doing
so may lead to overtightening the nuts and
damaging the bolts. The nuts may loosen and the
wheels may fall off, which could cause a serious
accident. If there is oil or grease on any bolt or nut,
clean it.

IN CASE OF AN EMERGENCY
486
G40014
10. Lower the vehicle completely and tighten the
wheel nuts.
Turn the jack handle counterclockwise to lower the
vehicle.
Use only the wheel nut wrench to tighten the nuts. Do
not use other tools or any additional leverage other than
your hands, such as a hammer, pipe or your foot. Make
sure the wrench is securely engaged over the nut.
Tighten each nut a little at a time in the order shown.
Repeat the process until all the nuts are tight.
CAUTION
 When lowering the vehicle, make sure all
portions of your body and all other persons
around will not be injured as the vehicle is
lowered to the ground.
 Have the wheel nuts tightened with torque
wrench to 103 N·m (10.5 kgf·m, 76 ft·lbf.), as
soon as possible after changing wheels.
Otherwise, the nuts may loosen and the wheels
may fall off, which could cause a serious
accident.
 Do not attach a heavily damaged plastic wheel
ornament. It may fly off the wheel and cause
accidents while the vehicle is moving.