flat tire LEXUS LS430 2006 Owners Manual

TABLE OF CONTENTS
1Before drivingAdjusting and operating features such as door locks, mir-
rors, and steering column.
2When drivingDriving, stopping and safe-driving information.
3Interior featuresAir conditioning and audio systems, as well as other 
interior features for a comfortable driving experience.
4Maintenance
and careCleaning and protecting your vehicle, performing do-it-
yourself maintenance, and maintenance information.
5When trouble
arisesWhat to do if the vehicle needs to be towed, gets a flat tire,
or is involved in an accident.
6Vehicle 
specificationsDetailed vehicle information.
7For US ownersReporting safety defects for US owners
IndexAlphabetical listing of information contained in this 
manual.

TABLE OF CONTENTSIndex
Refreshing rear seat 
switches ......................................... 222
Coat hooks ..................................... 223
Floor mats........................................ 224
Sunshades ....................................... 225
Trunk features................................ 227
Garage door opener .................. 232
Compass (vehicles without 
navigation syst em)
................... 238
4-1. Maintenance and care............ 244 Cleaning and protecting the 
vehicle exterior .......................... 244
Cleaning and protecting the 
vehicle interior............................ 247
4-2. Maintenance ............................. 250 Maintenance requ irements
.... 250
General maintenance ................ 252
Emission inspection and 
maintenance (I/M) 
programs....................................... 255
4-3. Do-it-yourself 
maintenance ........................... 256
Do-it-yourself service 
precautions .................................. 256
Hood................................................. 260
Positioning the jack ...................... 261
Engine compartment.................. 262 Tires ................................................... 278
Tire inflation pressure................ 283
Wheels.............................................. 287
Air conditioning filters............... 289
Wireless remote control

battery ............................................ 295
Blade fuses ..................................... 298
Cartridge fuses ............................ 309
Headlight aim.................................... 311
Light bulbs ........................................ 313
5-1. Essential information .............. 320 If your vehicle needs to be 
towed............................................. 320
If you think something is 
wrong ............................................. 324
Fuel pump shut off system ........ 325
Event data recorder .................... 326
5-2. Steps to take in an 
emergency .............................. 328
If a warning light turns on... ...... 328
If a warning message 
appears.......................................... 334
If you have a flat tire..................... 347
If the engine will not start ......... 353
If the transmission selector 
lever cannot be shifted 
from P............................................. 354
If you lose your keys ................... 355
4Maintenance and care
5When trouble arises

Doors P.15
Rear window defogger
P.170
Trunk P.227
Tire
Rotation
Replacement
Inflation pressure
Information
P.278
P.347
P.283
P.376
Turn signal light (rear)
P.101
If equipped

93
2-1. Driving procedures
2
When driving
NOTICE
■Avoiding damage to vehicle parts
●Do not turn the steering wheel fully in either direction and hold it there for a long
time. Doing so may damage the power steering pump.
●When driving over bumps in the road, drive as slowly as possible to avoid damag-
ing the wheels, underside of the vehicle, etc.
■If you hear a squealing or scraping no ise (brake pad wear limit indicators)
Have your Lexus dealer check and replace the brake pads as soon as possible.
Exp
ensive rotor damage can result if the pads are not replaced when needed.
■If a malfunction is detected while driving
A flat or damaged tire may c
ause the following situations. Hold the steering wheel
firmly and gradually press the brak e pedal to slow down the vehicle.
• It may be difficult to control your vehicle.
• The vehicle will make abnormal sounds.
• The vehicle will behave abnormally.
Replace a flat tire with a new one. ( P.
3 4 7 )

154
2-5. Driving information
■Before towing
●Ensure that your vehicle’s tires are properly inflated. (P.283 )
●Trailer tires should be inflated according to the trailer manufacturer’s recom -
mendation.
●All trailer lights must work to be legal.
●Confirm all lights work each time you connect them.
●Check that your vehicle remains level when a loaded or unloaded trailer is
hitched. Do not drive if the vehicle is not level, and check for improper tongue
load, overloading, worn suspension, or other possible causes.
●Make sure the trailer cargo is securely loaded.
●Check that your rear view mirrors conform to any federal, state/provincial or
local regulations. If they do not, instal l rear view mirrors appropriate for towing
purposes.
■Break-in schedule
Lexus recommends that you do not use a new vehicle or a vehicle with any new
p

ower train components (engine, transmissi on, differential, wheel bearing, etc.) to
tow a trailer for the first 500 miles (800 km) of driving.
■Maintenance
●If you tow a trailer, your vehicle will require more frequent maintenance due to
the additional load. (see “Owner’s Manual Supplement/ Scheduled Mainte -
nance”)
●Retighten the fixing bolts of the towing ball and bracket after approximately
600 miles (1000 km) of trailer towing.

4Maintenance and care
243
4-1. Maintenance and care ........ 244
Cleaning and protecting the  vehicle exterior ........................ 244
Cleaning and protecting the  vehicle interior ......................... 247
4-2. Maintenance .......................... 250 Maintenance requirements.. 250
General maintenance............. 252
Emission inspection and 
maintenance (I/M) 
programs.................................... 255 4-3. Do-it-yourself

maintenance ......................... 256
Do-it-yourself service 
precautions .............................. 256
Hood.............................................. 260
Positioning the jack .................... 261
Engine compartment ............... 262
Tires ................................................. 278
Tire inflation pressure .............. 283
Wheels ........................................... 287
Air conditioning filters
............ 289
Wireless remote control  battery ......................................... 295
Blade fuses .................................. 298
Cartridge fuses ......................... 309
Headlight aim................................ 311
Light bulbs ..................................... 313

254
4-2. Maintenance
Vehicle exterior
ItemsCheck points
Door/trunk• Do they operate smoothly?
• Do the locks work properly?
Engine hood• Does the hood latch and lock work properly?
Fluid leaks• Are there any leaks when the vehicle is parked?
Ti r e
• Is the inflation pressure correct? ( P. 2 8 3 )
• Are tire surfaces worn or damaged? ( P. 2 7 8 )
• Do the tires need to be rotated according to the mainte- nance schedule? ( P. 2 7 8 )
• Are the wheel nuts loose?

257
4-3. Do-it-yourself maintenance
4
Maintenance and care
Do-it-yourself maintenancePa r t s a n d t o o l s
Headlight aim 
( P.311)
• Phillips-head screwdriver
Power steering fluid
level
(P. 2 7 2 )
• Automatic transmission fluid DEXRON ll or
lll
• Rag or paper towel
• Funnel (used only for adding power steering fluid)
Radiator and 
condenser 
(P. 2 6 9 )

Tire inflation pressure 
(P. 2 8 3 )
• Tire pressure gauge
• Compressed air source
Wa s h e r f l u i d 
(P. 2 7 7 )
• Washer fluid containing antifreeze 
(for winter use)
• Funnel (used only for adding washer fluid)

280
4-3. Do-it-yourself maintenance
■When to replace your vehicle’s tires
If either of the following occurs, the tire should be replaced:
• Tire damage such as cuts, splits, cracks deep enough to expose the
fabric, or bulges indicating internal damage
• If a tire often goes flat or cannot be pr
operly repaired due to the size
or location of a cut or other damage
If you are not sure, see your Lexus dealer.
■Tire life
Any tire over 6 years old must be checked by a qualified technician even if it has
ne

ver or seldom been used or damage is not obvious.
■If the tread wears down below 0.16 in. (4 mm) on snow tires
The effectiveness of snow tires is lost.
■Tire selection
When replacing a tire, use a tire of the sa me siz
e and construction, and the same or
greater maximum load as the originally installed tires.
Check that the maximum load of the replaced t
ire is greater than 1 /2 of the Gross
Axle Weight Ratings (GAWR) of either the front axle or the rear axle, whichever is
greater. 
As for the maximum load of the tire, see the load limit a
t maximum cold tire inflation
pressure mentioned on the sidewall of the tire. 
As for the Gross Axle Weight Ratings (GAWR), see the Certification Label. 
(  P.283 )

282
4-3. Do-it-yourself maintenance
+
CAUTION
■When inspecting or replacing tires
Observe the following instructions, as failure to do so may cause dangerous han-
dling characteristics resulting in loss of contr
ol and could cause death or serious
injury.
• Do not mix radial, bias belted, or bias-ply tir
es on your vehicle, or use tires other
than the manufacturer’s recommended size.
• Do not mix summer and all season tires on your vehicle.
• Do not use tires other than the manufact ur
er’s designated tires, and never mix
tires or wheels of different size to the originals.
NOTICE
■To prevent malfunction of the tire pressure warning system
Do not push the reset switch without adjusting the tire inflation pressure to the spec-
ified level. Otherwise, the low tire pressure warning may not function correctly.
(  P.334 )
■If tire pressure becomes low while driving
Do not continue driving, your ti r
es and/or wheels may be ruined.