2006 LEXUS LS430 ignition

336
5-2. Steps to take in an emergency
Warning message and lightDetails
Electronically modulated air suspension warning
Indicates a malfunction in the electronically
modulated air suspension system. The system
is not functioning while the warning message is
displayed. However, you can continue driving
until you reach a Lexus dealer.
Lexus park assist system warning
A sensor is malfunctioning or a cable is broken.
Th
e system is not functioning while the warning
message is displayed. However, you can con -
tinue driving until you reach a Lexus dealer.
• The faulty sonar is indicated on the graphic information display.
and
(flashes)
Dynamic radar/ laser cruise control system
warning
Indicates a malfunction in the dynamic radar/
laser cruise control system or the cruise control
system. Stop your vehicle in a safe place, turn
the ignition switch off and then on again to reset
the system. If settings cannot be made or the
same warning appears again, the system may
have malfunctioned. You may continue driving,
however contact your Lexus dealer.
Pre-collision safety system warning
Indicates a malfunction in the pre-collision
safety
system. The system is not functioning
while the warning message is displayed. How -
ever, you can continue driving until you reach a
Lex
us dealer.

5
When trouble arises
339
5-2. Steps to take in an emergency
Warning message and lightDetailsCorrection procedures
Steering lock warning
This message comes
on when you push
the ignition switch or
insert the smart key,
and hold the switch
or key in the "LOCK"
position for more
than 3 seconds.Turn the ignition switch
from "LOCK" to "ACC"
while moving the steer-
ing wheel slightly left to
rig
ht. ( P.94
)
Lexus park assist sys-
tem warning
Foreign matter (ice,
snow, mud, etc.,) has
adhered to the sonar.Remove the foreign mat -
ter or deice the sonar.
(The faulty sonar is indi -
cated on the graphic
information display
.)

344
5-2. Steps to take in an emergency
Smart access system failure warnings
To prevent incorrect operation, your Lexus is equipped with alarms inside
and outside, as well as warning messa ges in the multi-information display,
to alert you to problems involving the smart access system.
Inside alarmOutside alarmMulti-information displayCausesCorrection
procedures
BuzzerNoneNone
A door is
opened with -
out turning OFF
the ignition
switch.
Close the door
or turn off the
ignition switch
None
Beep
(two sec-
onds)
None
An attempt is
made to lock
the door(s)
while the mas-
ter key is still in
the vehicle or
the ignition
switch is ON.Shift to P range.
None
Beep
(ten sec-
onds)
None
An attempt is
made to lock a
door that is ajar,
or lock the mas-
ter key in the
trunk.
Bring the mas -
ter key to the
vehicle.
BeepNone
A door is
opened with-
out turning off
the ignition
switch and with
the transmission
selector lever in
a position other
than P.Turn the igni-
tion switch to
"L
OCK" posi -
tion or bring the
master k
ey to
the vehicle.

5
When trouble arises
345
5-2. Steps to take in an emergency
One
buzzerNone(shown for about 5 sec-
onds)
The master key
is not in the
vehicle when
the ignition
switch is
pushed while in
the LOCK posi-
tion.
Bring the mas-
ter key to the
vehicle.
One
buzzer3 beeps
A door is
opened and
closed while the
master key is
not in the vehi-
cle with the
ignition switch
in the ACC or
ON position.
Bring the mas-
ter key to the
vehicle.
BeepBeep
&
appear alternately
The driver has
exited the vehi -
cle and closed
the door with-
out turning off
the ignition
switch when the
selector lever is
in a position
other than P.
Shift to P range
or bring the
master key to
the vehicle.
Inside alarmOutside alarmMulti-information displayCausesCorrection
procedures

5
When trouble arises
353
5-2. Steps to take in an emergency
If the engine will not start
If the engine will not start, even though correct starting procedures are being
followed (P.94), consider each of the following points. 
Contact your Lexus dealer if the problem cannot be repaired, or if repair pro -
cedures are unknown.
■ The engine will not start even wh en the starter motor operates nor-
mally
One of the following may be the cause of the problem.
• There may not be sufficient fuel in the vehicle’s tank. 
Add fuel to the vehicle.
• The engine may be flooded. 
Try to restart the engine once mor
e following correct starting
procedures (
P. 94 ). Hold the ignition switch in the START posi -
tion for a slightly longer period (u p to a maximum of 15 seconds).
■ The star
ter motor turns over slowly , the interior lights and headlights
are dim, or the horn does not sound or sounds at a low volume.
One of the following may be the cause of the problem.
• The battery may be discharged. (
P.356 )
• The battery terminal connectio ns may be loose or corr
oded.
■ The star
ter motor does not turn over, the interior lights and head-
lights do not turn on, or the horn does not sound.
One of the following may be the cause of the problem.
• One or both of the battery terminals may be disconnected.
• The battery may be discharged. (
P.356 )
• There may be a malfunction in the engine immobilizer system.  (
P.54)

354
5-2. Steps to take in an emergency
If the transmission selector lever cannot be shifted from P
If the transmission selector lever cannot be shifted with your foot on the
brake, there may be a problem with the shift lock system (a system to prevent
accidental operation of the selector lever). Have the vehicle inspected by
your Lexus dealer immediately.

The following steps may be used as an
emergency measure to ensure the
selector lever can be shifted.
Set the parking brake.
Turn the ignition switch to ACC.
Depress the brake pedal.
Pry the cover up with a flat head
s
crewdriver or equivalent.
Insert your finger, the sc rewd
river
or equivalent into the hole to push
down the shift lock override but -
ton. You can shift the selector lever
while pushing the button.

367
6-1. Specifications
6
Vehicle specifications
Cooling system
Ignition system
Capacity10.0 qt. (9.5 L, 8.4 lmp.qt.)
Coolant type
Use either of the following.
• “Toyota Super Long Life Coolant”
• Similar high quality ethylene glycol based non-silicat
e, non-amine, non-nitrite, and
non-borate coolant with long-life hybrid
organic acid technology
Do not use plain water alone.
Spark plug
-MakeDENSOSK20R11
NGKIFR6A11
- Gap0.043 in. (1.1 mm)
NOTICE
■Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not
adjust gap when tuning engine.

385
6-2. Owner’s customize
6
Vehicle specifications
ItemFunctionDefaultsettingAfter
customization
Automatic light
control system 
(  P.110
)
Ambient light sensor sensitivityCan be set to desired level
Time period before lights turn off (if
a door is opened and closed, and
ignition switch is in ACC or
LOCK)
30 seconds
OFF
60 seconds
90 seconds
Po w e r 
windows 
(  P.45
)
Integrated door lock operationONOFF
Integrated wireless remote con -
trol operationONOFF
Moon roof
(  P.48
)
Integrated door lock operationONOFF
Integrated open/close operation
with door keyONOFF
Integrated wireless remote con -
trol operationONOFF
Integrated open/close operation
with wireless remote controlONOFF
Illumination
(  P.198
)
Operation when the doors are
unlockedONOFF
Time period before lights turn off15 seconds7. 5 s e c o n d s
30 seconds
Steering column 
(  P.40
)Automatic tilt-away functionONOFF
Alarm 
(  P.55
)
Operation indicator light (turn sig -
nal light)ONOFF
Wireless remote control theft
deterrent buzzerONOFF