2006 LEXUS LS430 flat tire

338
5-2. Steps to take in an emergency
Warning message and lightDetailsCorrection procedures
(flashes)
Open moon roof warn-
ing
If the driver's door is
opened with the igni-
tion switch turned off
and the moon roof is
opened.
Close the moon roof
when you leave your
vehicle.
Parking brake warning
(Warning buzzer)*1
Indicates that the
parking brake is not
released.Release the parking
brake.
Low tire pressure
warning
Tire inflation pressure
is low.Adjust the tire inflation to
the specified pressure.
Low washer fluid warn -
ing
Washer fluid level is
low.Fill the washer fluid tank.
Air conditioning filter
warning
Indicates that the air
conditioning filter is
clogged enough to
require replacement.Change the air condi-
tioning filter.

342
5-2. Steps to take in an emergency
■Resetting the tire pressure warning data
After adjusting the tire inflation pressur
e, be sure to initialize the data. (P. 2 7 9 )
If the message remains on, the system may have malfunctioned. Have the vehicle
inspected b
y your Lexus dealer as soon as possible
■The tire pressure warning system may not function properly in the following con -
ditions
●Tires other than the sp ecified sizes are used, or if tires of different sizes or tread
pattern are mixed, or the degree of tread wear is very different among the
installed tires.
●A compact spare tire, snow tires, or tire chains are used.
●The tire inflation pressure is excessively higher than specified, or tire inflation
pressure suddenly drops due to buresting or other causes.
●Driving on slippery road surfaces such as rough or frozen roads.
●Driving under 19 mph (30 km/h) or above 62 mph (100 km/h), or less than 5
minutes drive.
●Initialization was not performed correctly after replacing or rotating tires or
wheels.
●The outside temperature is below 32 °F (0 °C) or above 104 °F(40 °C).
CAUTION
■When the low tire pressure warning message appears
Avoid abrupt maneuvering and braking. If th
e vehicle’s tires have deteriorated, you
could lose control of the vehicle, resulting in death or serious injury.

5
When trouble arises
347
5-2. Steps to take in an emergency
If you have a flat tire
Remove the flat tire and replace it with the spare provided.
■Before jacking the vehicle
●Stop the vehicle on a hard, flat surface.
●Set the parking brake.
●Set the transmission selector lever in P.
●Stop the engine.
●Turn on the emergency flashers.
■ Location of spar
e tire jack and jacking position
Tire jack position Spare tire
Tire jack
Tool box Jack handle

348
5-2. Steps to take in an emergency
Replacing a flat tire
Chock the tires.
Slightly loosen the wheel nuts (one
turn).
Wheel
chocks
Flat tireWheel chock positions
Front tire
Left-
hand
sideBehind the rear
right-hand side
tire
Right-
hand
sideBehind the rear
left-hand side tire
Rear tire
Left-
hand
sideIn front of the
front right-hand
side tire
Right-
hand
sideIn front of the
front left-hand
side tire
Wheel nut 
wrench

5
When trouble arises
351
5-2. Steps to take in an emergency
Firmly tighten each nut two or
three times in the order shown in
the illustration.Tightening torque: 
76 f t
•lbf (105 N•m, 10.5 kgf•m)
Place the center ornament from the removed tire on the tire
installed on the vehicle.
Center ornaments cannot be installed on the spare tire.
Stow the flat tire, tire jack and all
tools.
Check the following when stowing
the tire jack and tire. • The tire jack should be firmly secur
ed in the carrier.
• The tire should be secured with the
bolt.

352
5-2. Steps to take in an emergency
CAUTION
■Using the tire jack
Improper use of the tire jack may lead to death or injuries due to the vehicle sud-
denly falling off the jack. 
Observe the following precautions to prevent accidents.
• Do not use the tire jack for any purpose other than replacing tires or installing and
removing tire chains.
• Only use the tire jack that comes with this vehicle for replacing a flat tire. 
Do not use this tire jack on other vehicl
es, and do not use other tire jacks for
replacing tires on this vehicle.
• Always check that the tire jack is securely set to the jack point.
• Do not raise the vehicle while someone is in it.
• When raising the vehicle, do not put an object on or under the jack.
• Do not raise the vehicle to a height greate r than
that required to replace the tire.
• Do not put any part of your body under the vehicle supported by a jack.
• Do not start or run the engine while your vehicle is supported by the jack.
• Use a jack stand if it is necessary to get under the vehicle.
• Take particular care when lowering the vehicle to ensure that no one working on or
near the vehicle may be injured.
■Replacing a flat tire
Observe the following precautions to reduce
the risk of death or serious injury.
• Never use oil or grease on the wheel bolts or wheel nuts. 
The oil or grease can cause the wheel nuts to loosen, causing a serious accident.
R
emove any oil or grease on the wheel bolts or wheel nuts.
• Have the wheel nuts tightene d with a tor
que wrench to 76 f t•lbf (105 N•m, 10.5
kgf
•m) as soon as possible after changing wheels. 
Failure to follow these pre-cautions could cause, the wheel nuts to loosen and the
w
heels may fall off, which could lead to an accident causing death or serious injury.
NOTICE
■Do not drive the vehicle with a flat tire.
Do not continue driving with a flat tire. 
Driving even a short distance can damage a tire and wheel beyond repair.

370
6-1. Specifications
Tires and wheels (Type A)
Tires and wheels (Type B)
Ti r e s i z eP225/55R17 95H
Tire inflation pressure
(Recommended cold 
tire inflation pressure)
Driving in normal conditions
32 psi (220 kPa, 2.2 kgf/cm2 or bar)
Driving in high speeds above 100 mph (160
km/
h) 
(in countries where such speeds are permitted
b

y law)
Add 3 psi (20 kPa, 0.2 kgf/cm
2 or bar) to
the front tires and rear tires. Never exceed
the maximum cold tire inflation pressure
molded on the tire sidewall.
Wheel size17  7 1 /2 JJ
Wheel nut torque76 f t•lbf. (103 N•m, 10.5 kgf•m)
Ti r e s i z e245/45R18 96W
Tire inflation pressure
(Recommended cold 
tire inflation pressure)
Driving in normal conditions
33 psi (230 kPa, 2.3 kgf/cm2 or bar)
Driving in high speeds above 100 mph (160
km/
h) 
(in countries where such speeds are permitted
b
y law)
Add 6 psi (40 kPa, 0.4 kgf/cm
2 or bar) to
the front tires and rear tires. Never exceed
the maximum cold tire inflation pressure
molded on the tire sidewall.
Wheel size18  7 1 /2 JJ
Wheel nut torque76 f t•lbf. (103 N•m, 10.5 kgf•m)

371
6-1. Specifications
6
Vehicle specifications
Tires and wheels (Type C)
Ti r e s i z eP245/45R18 96V
Tire inflation pressure
(Recommended cold 
tire inflation pressure)
Driving in normal conditions
33 psi (230 kPa, 2.3 kgf/cm2 or bar)
Driving in high speeds above 100 mph (160
km/
h) 
(in countries where such speeds are permitted
b

y law)
Add 6 psi (40 kPa, 0.4 kgf/cm
2 or bar) to
the front tires and rear tires. Never exceed
the maximum cold tire inflation pressure
molded on the tire sidewall.
Wheel size18  7 1 /2 JJ
Wheel nut torque76 f t•lbf. (103 N•m, 10.5 kgf•m)