2006 LEXUS LS430 snow chains

142
2-4. Using other driving systems
CAUTION
Any of the following conditions may result in-an accident which could cause death
or serious injury:
■The ABS may not operate effectively when:
●The limits of tire gripping performance have been exceeded.
●If the vehicle hydroplanes while driving at high speed while the road is wet or
slick.
■Stopping distance when the ABS is activated will exceed that of normal condi -
tions
The ABS is not designed to shorten the v
ehicle’s stopping distance. Always main -
tain a safe distance between you and the vehicle in front of you, particularly in the
fo
llowing situations.
• When driving on dirt, gravel or snow-covered roads
• When driving with tire chains
• When driving over bumps in the road
• When driving over roads with potholes or uneven roads
• When towing a trailer
■TRAC may not operate effectively when:
Directional control and power may not be ac hi
evable while driving on slippery road
surfaces, even if the TRAC system is operating. 
Do not drive the vehicle in conditions where control and power may be lost.
■When the slip indicator flashe s and a warning buzzer sounds
This situation occurs immediately before VSC is activated. Always drive carefully.
R
eckless driving may cause an at the recommended level. 
Exercise particular care when an indicator light flashes and a buzzer sounds.
■Replacing tires
Ensure that all tires are the same size an d
brand, have the same tread pattern, and
that the level of tire pressure is at the recommended level. 
The ABS and VSC systems may not operate no rmal
ly if different tires are installed
to the vehicle. 
Contact your Lexus dealer for further info rmati
on when replacing tires or wheels.

149
2-5. Driving information
2
When driving
Winter driving tips
Carry out the necessary preparations and inspections before driving the
vehicle in winter. Always drive the vehicle in a manner appropriate for the
prevailing weather and roadway conditions.
■ Pre-winter preparations
●Use fluids appropriate to the p revailing outside temperatures.
• Engine oil
• Engine coolant
• Washer fluid
●Inspect the level and specific gravity of battery electrolyte.
●Have the vehicle fitted with four sno w tires or purchase a set of tire
chains for the rear tires.
Ensure that all tires are the same si
ze and brand, and that chains
match the size of the tires.
■ Befor
e driving the vehicle
Perform the following steps acco r
ding to the driving conditions.
●Do not forcibly try to open a window or move a wiper that has fro-
zen. Pour some warm water over the frozen area to melt the ice. 
Wipe away the water immediately to pr
event it from freezing.
●To ensure proper operation of the climate control system fan,
remove any snow that has accumulated on the air inlet vents in front
of the windshield.
●Remove any ice that has accumulated on the vehicle chassis.
●Periodically check for and remove any excess ice or snow that may
accumulate in the wheel well or brakes.

150
2-5. Driving information
Regulations on the use of snow chains
●Regulations regarding the use of tire chains vary according to location
and type of road. Alwa ys check local regulations before installing
chains.
●Use SAE Class “S” type radial tire chains, with the exception of radial
cable chains or V-bar type chains.
• Install the chains on the rear tires.
• Refer to the explanation that comes with the tir
e chains for installa-
tion instructions.
●Retighten chains after driving 1 /4 - 1 /2 mile (0.5 - 1.0 km).
■If the chains are installed
The tire pressure warning system may not operate properly.
■Tire chain installation
Observe the following installation, removal and care precautions.
• Install and remove tire chains in a safe location.
• Install tire chains on the rear tires only. Do not install tire chains on front tir
es.
• Install the tire chains on rear tires as tightly as possible. Retighten chains af
ter driving 1 /4 - 1 /2 mile (0.5 - 1.0 km).
• Install tire chains following the inst ructions pr
ovided with the chains.
■When driving the vehicle
Accelerate the vehicle slowly and driv e at a reduced speed suitable to
road conditions.
■ When parking the v
ehicle
The parking brake may freeze up, prev enting it fr
om being released.,
Place the selector lever in P and park the vehicle without applying the
parking brake.

151
2-5. Driving information
2
When driving
CAUTION
■Driving with snow tires
Observe the following precautions to reduce the risk of accidents. 
Failing to do so may result in a loss of vehicle control and cause death or serious
injur
y.
• Use tires of the specified size.
• Maintain the recommended level of air pressure.
• Do not drive in excess of 72 mph (120 km/h), regardless of the type of snow tir
es being used.
• Use snow tires on all, not just some wheels.
■Driving with tire chains
Observe the following precautions to reduce the risk of accidents. 
Failing to do so may result in to the vehicle being unable to be driven safely and a
p
ossible accident which may cause death or serious injury.
• Do not drive in excess of the speed limit specified for the tire chains being
used, or 30 mph (50 km/h), whichever is lower.
• Avoid driving on bumpy road s
urfaces or through potholes.
• Avoid sudden turns and braking, as us e of chains may a
dversely affect vehi-
cle handling.
• Slow down sufficiently before entering a curve to ensure that vehicle con -
trol is maintained.

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.

398
Alphabetical index
Sub key............................................................2
Sun shade (moon roof) .......................... 48
Sun shades Rear power sunshade ..................... 225
Manual sunshade .............................. 225
Sun visors ................................................ 208
Switch ECT pattern select ............................... 99
Fog light switch ....................................... 113
Ignition switch......................................... 94
Light switches ......................................... 110
Power door lock switch ...................... 15
Power window switch ........................ 45
Window lock switch ........................... 45
Tachometer .............................................. 103
Tail lights Wattage.................................................. 372
Theft deterrent system Alarm .......................................................... 55
Engine immobilizer 
system ..................................................... 54
Theft prevention labels .......................... 57
Tire inflation pressure ......................... 283
Tires Chains ...................................................... 150
Checking ............................................... 278
If you have a flat tire .......................... 347
Inflation pressure................................ 283
Information............................................ 376
Replacing ............................................... 347
Rotating tires ........................................ 278
Size ........................................................... 370
Snow tires ................................................. 151
Tools ........................................................... 347Total load capacity ................................
148
Towing Dinghy towing ...................................... 160
Emergency towing ............................. 321
Trailer towing ........................................ 152
TRAC (traction control) Traction control.................................... 140
Warning message ............................ 334
Trip meter ................................................ 103
Trunk Cool box ................................................ 229
Opener ....................................................... 19
Trunk-lid closer ...................................... 20
Trunk storage extension ................ 228
Trunk light Wattage .................................................. 372
Turn signal lights Replacing light bulbs ......................... 314
Switch .......................................................... 101
Wattage .................................................. 372
Under-dash lights Wattage .................................................. 372
Vanity lights Vanity lights.......................................... 209
Wattage .................................................. 372
Vanity mirrors ........................................ 209
Vehicle identification number......... 365
Vehicle load capacity .......................... 148
VSC (Vehicle Stability Control) Vehicle stability control.................... 140
Warning message ............................ 334
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