light LEXUS LS430 2006 Workshop Manual

134
2-4. Using other driving systems
■Certifications for the millimeter wave radar laser sensor/ laser radar sensor
(U.S.A.)
●Millimeter wave radar sensor
FCC WARNING: 
Changes or modifications not expressly approved by the party responsible for
com
pliance could void the user’s authority to operate the equipment. 
FCC RF exposure information: 
This device complies with the FCC RF exposure requirements.
●Laser radar sensor 
This product is a class I laser product complied with 21 C.F.R part 1040.10 and
10
40.11.
■Certifications for the millimeter wave radar laser sensor/ laser radar sensor
(Canada)
Millimeter wave radar sensor 
Operation is subject to the following two conditions;
1. this device may not c
ause interference, and
2. this device must accept any interference r
eceived, including interference that
may cause undesired operation of the device.
■If the master warning light comes on and a warning message appears on the
multi-information display
If a system malfunction occurs when the dyn
amic radar/laser cruise control is on or
in the “RADAR READY” mode, the master warning light comes on, the “CRUISE”
indicator light flashes, a warning tone so unds, and “Check Cruise System” is dis-
played. ( P.334 )

138
2-4. Using other driving systems
Electronically modulated air suspension
The vehicle adjusts the action of the shock absorbers and maintains vehicle
height automatically in response to driving conditions to help provide
enhanced driving comfort and vehicle control.
■ Vehicle height adjustment
Vehicle’s height is maintained at the se lected le
vel regardless of the num-
ber of occupants and luggage weight.
High
Normal
■ D
amping mode selection
You can select the damping mo de of the shock absorbers.
Sport
Indicator light comes on.
Normal
1
2
1
2

139
2-4. Using other driving systems
2
When driving
■High mode
●This mode is suitable for driving on gravel or bumpy roads.
●“Height Hi” appears on multi-information display when the high mode selected.
●The vehicle adjusts its height between high and normal depending on driving
conditions.
●The damping mode is set slightly firmer in the high mode so you may feel more
road vibration compared to the normal mode. This is not a malfunction.
■Normal mode
●This mode suitable for driving on roads with a normal surface.
●The height remains at normal height at all driving speeds.

141
2-4. Using other driving systems
2
When driving
To disable VSC and TRAC
If the vehicle gets stuck in fresh snow or mud, VSC and TRAC may
reduce power from the engine to the wheels. You may need to turn VSC
and TRAC off to enable you to rock the vehicle in order to free the vehi-
cle.
Push the button to turn off VSC
and TRAC.
The TRAC OFF indicator light
turns on.
Push the button again to turn the
sy
stem back on.
1
■Operating sounds and vibrations caus ed by the ABS, VSC & TRAC systems
●A sound may be heard from the engine compartment when the engine is
started or just after the vehicle begins to move. This sound does not indicate that
a malfunction has occurred in any of these systems.
●Any of the following conditions may occur when the ABS, VSC and TRAC sys -
tems are operating. None of these indicates that a malfunction has occurred.
• A sound may be heard.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard after the vehicle comes to a stop.
• The brake pedal may pulsate slightly while the ABS is activated.
• The brake pedal may move forward slightly after the ABS is activated.
■Failure warning for VSC or TRAC system
If an error in the VSC or TRAC systems is
detected, the master warning light and
TRAC OFF indicator light comes on, a warning tone sounds. (P.334 )

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.

144
2-4. Using other driving systems
CAUTION
■Pre-collision system limitations
●The Pre-Collision System is designed to help reduce the crash speed and dam-
age in certain frontal collisions only. It is not a collision avoidance system and is
no
t a substitute for safe and attentive driving. System effectiveness depends on
many factors, such as speed, dr iver input and road conditions.
●The sensor is able to detect objects in front of the vehicle within 10 degrees on
either side. If the object is out of range, or there is little to no millimeter wave
reflection, the sensor will not detect the object.
●Even if the system is operative in a collisio n, unless the seat belts are worn and the
brake pedal is depressed, the pre-collision seat belts and brake assist system will
operate.
■Failure Warning
If an error is detected, the master warn i
ng light comes on, a warning tone sounds
and the following warning message appears on the multi-information display.
(  P.334 )

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.

155
2-5. Driving information
2
When driving
CAUTION
■To avoid accident or injury
●The total trailer weight (trailer weight plus the weight of cargo) must not exceed
2000 lb. (907 kg).
●Do not exceed the trailer hitch assembly weight, gross vehicle weight, gross axle
weight and trailer tongue load capacities.
●Never load more weight in the back than in the front of the trailer. About 60% of
the load should be in the front half of the trailer, and the remaining 40% in the
rear.
■Hitches
Trailer hitch assemblies have different weight capacities established by the hitch
ma

nufacturer. Even though the vehicle may be physically capable of towing a
higher weight, the operator must never exceed the maximum weight rating speci -
fied for the trailer hitch.
• If you wish to install a trailer hitch, your Lexus dealer should be consulted.
• Use only a hitch that conforms to the total trailer weight requirement.
• Follow the directions supplied by the hitch manufacturer.
• Lubricate the hitch ball with a light coat of grease.
• Remove the trailer hitch whenever you are not towing a trailer. After r
emoving the hitch, seal any mounting holes in the vehicle body to prevent
entry of any substances into the vehicle.
■When towing a trailer
●If the total trailer weight exceeds 1000 lb . (450 kg), trailer brakes are required.
●Never tap into your vehicle's hydraulic system, as this will lower the vehicle's
braking effectiveness.
●Never tow a trailer without using a safety chain securely attached to both the
trailer and the vehicle. If damage occurs to the coupling unit or hitch ball, there is
danger of the trailer wandering into another lane.

156
2-5. Driving information
Trailer towing tips
Your vehicle will handle differently when towing a trailer. The three main
causes of vehicle-trailer accidents are driver error, excessive speed and
improper trailer loading. Keep these in mind when towing.
• Before starting out, check the tra iler
’s lights and the vehicle-trailer
connections. Recheck after driving a short distance.
• Practice turning, stopping and reversi ng with the tr
ailer attached in an
area away from traffic until you be come accustomed to the feel of the
vehicle.
• Reversing with a trailer attached is dif
ficult and requires practice. Grip
the bottom of the steering wheel and move your hand to the left to
move the trailer to the left. Move yo ur hand to the right to move the
trailer to the right. (This is gene rally opposite to reversing without a
trailer attached.) Avoid sharp or prolonged turning. Have someone
guide you when reversing to redu ce the risk of an accident.
NOTICE
■When installing a trailer hitch
●Use only the position recommended by your Lexus dealer. Do not install the
trailer hitch on the bumper; this may cause body damage.
●Do not use axle-mounted hitches as they can cause damage to the axle housing,
wheel bearings, wheels or tires.
■Brakes
Lexus recommends trailers with brakes that conform to any applicable federal and
sta

te/provincial requlations.
■Do not directly splice trailer lights
Direct splicing may damage your vehicle’s electrical system and cause a malfunc -
tion.

3Interior features
161
3-1. Using the air conditioning 
system and defogger ........... 162
Automatic air conditioning 
control .......................................... 162
Rear window defogger............. 170
Rear air conditioning 
controls ........................................ 172
3-2. Using the audio system .......... 174 Audio system ................................. 174
Operating the radio................... 176
Operating the cassette 
player ............................................ 182
Using the CD changer ............ 185
Optimal use of the audio 
system ............................................ 191
Using the rear controller ......... 193
Using the steering switches.... 195
3-3. Turning on interior lights ...... 198 Interior lights list ......................... 198
3-4. Storage ...................................... 201 Storage features......................... 201 3-5. Other interior features ....... 208
Sun visors ..................................... 208
Vanity mirror and light ............ 209
Clock ............................................... 210
Ashtray............................................. 211
Cigarette lighter ......................... 213
Power outlets................................ 214
Outside temperature display .......................................... 216
Seat heaters .................................. 218
Climate control seat 
switches ..................................... 220
Refreshing rear seat 
switches ...................................... 222
Coat hooks................................... 223
Floor mats ..................................... 224
Sunshades ................................... 225
Trunk features.............................. 227
Garage door opener ............... 232
Compass (vehicles without 
navigation system) ................ 238