warning lights LEXUS LS430 2006 Owners Manual

TABLE OF CONTENTSIndex
1-1. Key information .............................. 2Keys ......................................................... 2
1-2. Opening, closing and locking 
the doors and trunk ..................... 5
Smart access system......................... 5
Wireless remote control ............... 12
Doors..................................................... 15
Trunk...................................................... 19
1-3. Adjustable components ............ 22 Front seats .......................................... 22
Rear seats ........................................... 23
Driving position memory 
system ............................................... 25
Rear seat position memory 
system ............................................... 29
Head restraints.................................. 31
Seat belts ............................................ 34
Steering wheel.................................. 40
Auto anti-glare mirror................... 42
Side mirrors ....................................... 43
1-4. Opening and closing the 
windows and moon roof .......... 45
Power windows................................ 45
Moon roof .......................................... 48 1-5. Opening the fuel tank cap ......... 51
Opening the fuel tank cap............ 51
1-6. Theft deterrent system............... 54 Engine immobilizer system ......... 54
Alarm.................................................... 55
Theft prevention labels 
(U.S.A.Only) .................................. 57
1-7. Safety information ...................... 58 Correct driving posture .............. 58
SRS airbags ....................................... 60
Child restraint system
................... 73
Installing child restraints ............... 76
2-1. Driving procedures..................... 86 Driving the vehicle .......................... 86
Starting the engine ......................... 94
Automatic transmission................ 98
Turn signal lever.............................. 101
Parking brake ................................. 102
2-2. Instrument cluster ..................... 103 Gauges and meters ..................... 103
Indicators and warning lights ... 105
Multi-information display........... 107
1Before driving
2When driving

2When driving
85
2-1. Driving procedures ................. 86Driving the vehicle ...................... 86
Starting the engine ...................... 94
Automatic transmission ............ 98
Turn signal lever ............................ 101
Parking brake .............................. 102
2-2. Instrument cluster .................. 103 Gauges and meters .................. 103
Indicators and warning 
lights ............................................. 105
Multi-information display ........ 107
2-3. Operating the headlight and 
windshield wipers .................. 110
Headlight switch .......................... 110
Fog light switch ............................. 113
Windshield wipers and 
washer ........................................... 114
Headlight cleaner switch.......... 117 2-4. Using other driving

systems ..................................... 118
Lexus park assist system ........... 118
Rear view monitor system....... 123
Cruise control .............................. 126
Dynamic radar/ laser cruise 
control .......................................... 129
Electronically modulated air 
suspension.................................. 138
Driver assist systems ................. 140
Pre-collision system 
(if equipped) .............................. 143
2-5. Driving information ................ 145 Cargo & luggage ....................... 145
Vehicle load limits....................... 148
Winter driving tips...................... 149
Trailer Towing ............................... 152
Dinghy towing.............................. 160

105
2-2. Instrument cluster
2
When driving
Indicators and warning lights
The indicator and warning lights in the instrument cluster inform the driver of
the operating state of the vehicle.
■ Indicators
Informs the driver of the operating state of the vehicle’s various sys -
tems.
Turn signal indicator 
( P.
1 0 1 ) Fog light indicator

( P.1 1 0 )
Headlight high beam
indicator ( P.
1 1 0 )ECT SNOW indicator

( P.9 8 )
Headlight indicator
(U.S.A) ( P.
1 1 0 )ECT PWR indicator 
(P.9 8 )
Tail light indicator
(Canada) ( P.
1 1 0 )Cruise control indicator

( P.1 2 6 )
Shift position indicator 
(  P.
9 8 ) TRAC OFF indicator

( P.1 4 0 )
“S” mode indicator 
( P.
9 8 ) Slip indicator

( P. 1 4 0 )
Shift range position
indicator ( P.
9 8 )AFS OFF indicator

( P. 1 1 0 )
Damping mode 
indicator ( P.
1 3 8 )

106
2-2. Instrument cluster
CAUTION
■If a safety system warning light does not come on
Should a safety system light such as ABS, TR
AC OFF or the airbag warning light
not come on when you start the engine, th is could mean that these systems are not
available to help protect you in an accident, which could result in death or serious
injury. Have the vehicle inspected by your Lexus dealer immediately if this occurs.
■ Warning lights
Warning lights inform the driver of a malfunction in the indicated vehi -
cle’s systems. (
P. 328 )
* These lights turn on when the ignition sw itch is turned to ON to indicate that
a system check is being performed. Th ey will turn off after the engine is
started on, or after a few seconds.
There may be a malfunction in a system if a
light does not come on, or if the
lights do not turn off. Have the vehicle inspected by your Lexus dealer.
*
(U.S.A)
(U.S.A) (Canada) (U.S.A) (Canada)
(Canada)

328
5-2. Steps to take in an emergency
If a warning light turns on...
If the brake system warning light comes on, stop the vehicle immediately.
The following warning indicates a possible problem in the brake system.
Continuing to drive the vehicle may be dangerous. 
Immediately stop the vehicl e in a safe place and contact y
our Lexus
dealer.
* Parking brake engaged warning buzzer:
A buzzer will sound if the vehicle is driv en at a speed of approximately 3 mph (5
km/h) or more.
Calmly perform the following actions if any of the warning lights turn on or
flash. If a light turns on or flashes, but then turns off, this does not necessarily
indicate a malfunction in the system.
Warning lightsWarning light/Details
(U.S.A)
(Canada)
Brake system warning light (Warning buzzer)*
• Low brake fluid
• Malfunction in the brake booster system This light also comes on when the parking brake
is not released. If the light turns off after the
parking brake is fully released the system is
operating normally.

5
When trouble arises
329
5-2. Steps to take in an emergency
If the charging system warning light comes on, stop the vehicle immedi-
ately.
The following warnings indicate the pos
sibility of damage to the vehicle
that may lead to an ac cident. Immediately stop the vehicle in a safe place
and contact your Lexus dealer.
Warning lightsWarning light/Details
Discharge warning light
Indicates a malfunction in the vehicle’s charging
system.

330
5-2. Steps to take in an emergency
If the following warning lights come on, have the vehicle inspected
immediately.
Failing to investigate the cause of the following warnings may lead to a
system operating abnormally and possibly cause an accident. 
Have the vehicle inspected by your Lexus dealer immediately.
Warning lightsWarning light/Details
(U.S.A)
(Canada)
Malfunction indicator lamp
Indicates a malfunction in:
• The electronic en gine contr
ol system;
• The electronic throttle control system; or
• The electronic automatic tr
ansmission con-
trol system.
SRS warning light
Indicates a malfunction in:
• The SRS airbag system; or
• The seat belt pretension system.
Automatic headlight leveling system and adaptive
front lighting system
Indicates a malfunction in:
• The automatic head light leveling system; or
• The adaptive front lighting system, if the light
flashes.
(U.S.A)
(Canada)
ABS warning light
Indicates a malfunction in:
• The Anti-lock Braking System ABS; or
• The brake assist system.

5
When trouble arises
331
5-2. Steps to take in an emergency
If the following warning lights come on, have the malfunction repaired
immediately.
After taking the specified steps to correct the suspected problem, check
that the warning light turns off.
Warning lightsWarning light/DetailsCorrection
procedures
Open door warning light 
(Warning buzzer)*1
Indicates that a door is not
fully closed.
Check that all doors
are closed.
Low fuel level warning light
Fuel level 
(Less than approximately 3
gal [12L, 2.6 Imp.gal.])Refuel the vehicle.
Driver’s seat belt reminder
light
(Warning buzzer)
Warns the driver to wear
his/her seat belt.
Wear the seat belt.

5
When trouble arises
333
5-2. Steps to take in an emergency
■If the electronic engine control system warning light remains on while driving
First check the following:
• Check fuel level, if the fuel tank is empty, refuel immediately.
• Check the fuel tank cap is loose tighten it securely.
The light will go off after driving regularly for some time.
If the light does not go off even after several trips, contact your Lexus dealer as soon
a
s possible.
■Front passenger detection sensor an d passenger’s seat belt reminder
●If luggage is placed on the front passenger seat, the front passenger detection
sensor may cause the warning light to flash and a chime to sound, even if a pas -
senger is not sitting in the seat.
●If a cushion is placed on the seat, the sensor may not detect a passenger, and the
warning light may not operate properly.
CAUTION
■If both the ABS and brake system warning lights remain on
Stop your vehicle in a safe place immediately and contact your Lexus dealer. The
v

ehicle will become extremely unstable during braking, and the ABS system may
fail, which could cause an accident resulting in death or serious injury.

392
Alphabetical index
Alphabetical index
A/C .............................................................162
ABS ABS ........................................................... 140
Warning light ....................................... 330
Adaptive front lighting system Adaptive front lighting system ........ 112
Warning light ....................................... 330
Air conditioning system Automatic air conditioning 
system .................................................... 162
Air conditioning filters ..................... 289
Rear air conditioning ......................... 172
Airbags Airbag operating conditions........... 62
Airbag precautions 
for your child ....................................... 66
Airbag warning light ........................ 330
Curtain shield air bag operating 
conditions.............................................. 62
Curtain shield airbag 
precautions .......................................... 66
General airbag precautions ........... 66
Locations of airbags.............................. 61
Modification and disposal 
of airbags................................................ 72
Side airbag 
operating conditions ....................... 62
Side airbag precautions .................... 69
Alarm ............................................................ 55
AM/FM radio........................................... 176
Anti-lock brake system Anti-lock brake system.................... 140
Warning light ....................................... 330
Ashtrays ....................................................... 211
Audio system Antenna .................................................... 176Cassette player ....................................
182
CD changer........................................... 185
Optimal use ............................................. 191
Radio ......................................................... 176
Rear controller...................................... 193
Steering switch ..................................... 195
Auto anti-glare mirror ........................... 42
Automatic air conditioning 
system ......................................................162
Automatic headlight leveling 
system Automatic headlight leveling 
system...................................................... 112
Warning light....................................... 330
Automatic light control 
system .........................................................111
Automatic transmission Automatic transmission .................... 98
Auxiliary boxes ...................................... 205
Back-up lights Replacing light bulbs ......................... 314
Wattage .................................................. 372
Battery Checking................................................ 273
If the battery is discharged ........... 356
Preparing and checking  before winter...................................... 149
Brake Brake assist system ............................ 140
Fluid ........................................................... 270
Parking brake........................................ 102
Warning light/buzzer ..................... 328
Brake lights Wattage .................................................. 372A
B