2006 LEXUS LS430 immobilizer

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

1Before driving
1
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 r
estraints ............ 76

54
1-6. Theft deterrent system
Engine immobilizer system
■Conditions that may cause the system to malfunction
●If the grip portion of the key is in contact with a metallic object.
●If the key is in close proximity to or touching a key to the security system (key
with a built-in transponder chip) of another vehicle.
NOTICE
■To prevent damage to the key
The key may be damaged if it is:
•Bent
• Subjected to a strong impact
• Left in direct sunlight
•Wet
• Left in close proximity to objects emitting magnetic fields
• In close proximity to an object that inter
feres with the electromagnetic wave
that is emitted
Keep all keys in a safe place.
The vehicle’s keys have built-in transponder chips that prevent the engine
from starting, if the key has not been previously registered in the vehicle’s on-
board computer.
The indicator light flashes to indi -
cate that the system is operating,
af

ter the ignition switch has been
turned to the Lock position.
Ty p e A
Ty p e B

56
1-6. Theft deterrent system
■Items to check before locking the vehicle
To prevent unintended triggering of the alarm
, check that there is no one in the vehi-
cle and that all windows are clos ed bef
ore locking the vehicle.
■Alarm operation
The alarm will sound if any of the following conditions occur.
• When a locked door or trunk is opened in any way other than using a key or
wir
eless remote control, such as someone exiting the vehicle after the alarm is
activated.
• When the hood is lifted open while the vehicle is locked.
• When the battery is reconnected.
■Sounding an alarm
Manually triggering the alarm will help de ter an
yone from breaking into or damag-
ing your vehicle. (
P. 12 )
■Certifications for the engine immobilizer system (for vehicles sold in U.S.A.)
This device complies with Part 15 of the FCC Rules. 
Operation is subject to the following two co
nditions: (1) This device may not cause
harmful interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation.
■Certifications for the engine immobilizer system (for vehicles sold in Canada)
This device complies with RSS-210 of Indu str
y Canada. Operation is subject to the
following two conditions: 
(1) This device may not cause interference, and (2) this device must accept any
inter

ference, including interference that may cause undesired operation of the
device.
FCC ID: MOZ RI-20BTY 
MADE IN JAPAN
FCC ID: MOZ RI-15HTY 
MADE IN JAPAN

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2-1. Driving procedures
■Starting the engine using the flat key (Standard)Put the key case away when the indicator light goes out. When the light
goes out, this means the engine immobilizer system has turned off.
Start the engine within 10 seconds after the indicator light goes off.
■Leak detection pump
Approximately five hours after the engine is turned off, you may hear sound coming
fr
om underneath the luggage compartment for several minutes. This is normal
operation and does not indicate a malfunction. ( 
For your information)
CAUTION
■When starting the engine
Always start the engine while sitting in the driver’s seat. Do not press the accelera -
tor while starting the engine under any circumstances. 
Doing so may cause an accident resu lting i
n death or serious injury.
Remove the flat key from its case. Insert the
flat key into the ignition switch.
Bring the key case close to the ignition switch
within 10 seconds as indicated by the arrow.

305
4-3. Do-it-yourself maintenance
4
Maintenance and care
■Fuse box in the front passenger’s side kick panel
FuseAmpereCircuit
MPX-IG7. 5
Tilt and telescopic steering, Power door
lock system, Power seat system, Engine
immobilizer system
D S/HTR15Seat heater, Climate control seat system
AIR SUS20Electronically modula ted air suspension
system
D-ACC7. 5Shift lock system, Theft deterrent system
PWR OUTLET15Power outlet
D-CIG15Rear cigarette lighter
OBD7. 5On-board diagnosis system
AM17. 5Starting system
ABS-IG7. 5Vehicle stability control system
D B/ANC5Seat belts
SECURITY7. 5Theft deterrent system
A/C7. 5Air conditioning system
STO P5Stop lights
D RR-IG10Refreshing seat
5
6
7
8
9
10
11
12
13
14
15
16
17
18

306
4-3. Do-it-yourself maintenance
FuseAmpereCircuit
IG230SRS airbag system, Engine immobilizer sys-
tem, Steering lock system, Starting system
HAZ15Emergency flashers
ST R LO C K7. 5Steering lock system
AM27. 5All components in "STA" and "IG2", Start -
ing system
MPX-B17. 5
Power door lock system, Engine immobi -
lizer system, Steering lock system, Front
power seat, Rear power seat
MPX-B37. 5
Tilt and telescopic steering, Headlight
switch, Windshield wiper and washer
switch, Turn signal switch
DOME10
Vanity lights, Outer foot lights, lgnition
switch light, Clock, Gauges and meters,
Interior lights, Personal lights
MPX-B27. 5Gauges and meters, Vehicle stability con -
trol system, Illuminated entry system, TEL
P RR-IG10Refreshing seat
H-LP LVL7. 5Headlight leveling system, Adaptive Front
Lighting System (AFS)
P- I G7. 5Rain sensor, Air conditioning system, Moon
roof, Multi-information display, Clock
P S/HTR15Seat heater, Climate control seat system
P- ACC7. 5
Air conditioning system, Audio system,
Clock, Multi-information display, Illumi -
nated entry system
P- C I G15Front cigarette lighter
RADIO NO.17. 5Audio system
RR DOOR LH20Power door lock system, Power window,
Door closer system, Door courtesy lights
P DOOR25
Power door lock system, Power rear view
mirror control system, Outside rear view
mirror defogger, Door closer system, Door
courtesy lights, Power windows
TEL7. 5Audio system, Navigation system
P B/ANC5Seat belts, Seat belt buckle illumination
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19

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)