brake Lexus GS430 2006 Scheduled Maintenance Guide / LEXUS 2006 GS430/GS300 FROM JAN. 2005 PROD. OWNER'S MANUAL (OM30649U)

IMPORTANT INFORMATION ABOUT YOUR LEXUS
iii
Event data recorder
Your vehicle has computers that monitor and control certain
aspects of your vehicle. These computers assist in driving and
maintaining optimal vehicle performance. Besides storing
data useful for troubleshooting, there is a system to record data
in a crash or a near car crash event. This is called an Event
Data Recorder (EDR).
The SRS airbag sensor assembly contains the EDR. In a
crash or a near car crash event, this device may record some
or all of the following information:
 Engine speed
 Whether the brake pedal was applied or not
 Vehicle speed
 To what extent the accelerator pedal was depressed
 Position of the transmission selector lever
 Whether the driver and front passenger wore the seat belts
or not
 Driver’s seat position
 Front passenger’s occupant classification
 SRS airbag deployment data
 SRS airbag system diagnostic data If your vehicle is equipped with a vehicle stability control (VSC)
system,
its Electronic Control Unit (ECU) may contain another
EDR. There are a variety of driving situations which include
activating the VSC under wh ich the VSC EDR will record
certain information. The VSC EDR may record some or all of
the following information:
 Behavior of the vehicle
 Steering wheel angle
 Vehicle speed
 To what extent the accelerator pedal was depressed
 To what extent the brake pedal was applied
 To what extent the ECU controlled the condition of the 4
wheels
 Vehicle stability control system diagnostic data
The information above is intended to be used for the purpose
of improving vehicle safety performance. Unlike general data
recorders, the EDR does not record sound data such as
conversation between passengers.

IMPORTANT INFORMATION ABOUT YOUR LEXUS
v
Accessories, spare parts and modification of
your Lexus
A wide variety of non−genuine spare parts and accessories for
Lexus vehicles are currently available in the market. You
should know that Toyota does not warrant these products and
is not responsible for their performance, repair, or
replacement, or for any damage they may cause to, or adverse
effect they may have on, your Lexus vehicle.
This vehicle should not be modified with non −genuine Lexus
products. Modification with non −genuine Lexus products
could af fect its performance, safety or durability, and may even
violate governmental regulations. In addition, damage or
performance problems resulting from the modification may not
be covered under warranty.
Spark ignition system of your Lexus
The spark ignition system in your Lexus meets all
requirements of the Canadian Interference− Causing
Equipment Standard.
Installation of a mobile twoway radio system
As the installation of a mobile two −way radio system in your
vehicle could affect electronic systems such as the multiport
fuel injection system/sequential multiport fuel injection system,
cruise control system, dynamic radar cruise control system,
anti− lock brake system, SRS airbag system and seat belt
pretensioner system, be sure to check with your Lexus dealer
for precautionary measures or special instructions regarding
installation.
Tires and loading on your Lexus
Underinflated or overinflated tire pressure and the
excess load may result in the deterioration of steering
ability and braking ability, leading to an accident. Check
the tire inflation pressure periodically and be sure to
keep the load limits given in this Owner’s Manual. For
details about tire inflation pressure and load limits, see
page 539 and 456.
Scrapping of your Lexus
The SRS airbag and seat belt pretensioner devices in your
Lexus contain explosive c hemicals. If the vehicle is scrapped
with the airbags and seat belt pretensioners left as they are,
this may cause an accident such as fire. Be sure to have the
systems of the SRS airbag and seat belt pretensioner removed
and disposed of by a qualified service shop or by your Lexus
dealer before you scrap your vehicle.
Leak detection pump
This pump performs fuel evaporation leakage check. This
check is done several hours after the engine is turned off. So
you may hear sound coming from underneath the luggage
compartment for several minutes. It does not indicate a
malfunction.

For detailed information, refer to the description given in each Section\
.
PICTORIAL INDEX
xPage
1
Power window switches 37, 57
. . . . . . . . . . . . . . . . . . .
2 Driving position memory switches 198
. . . . . . . . . . .
3 Window lock switch 58
. . . . . . . . . . . . . . . . . . . . . . . . . .
4 Door lock switch 37
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5 Side vents 268
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6 Engine switch 342
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7 Automatic air conditioning controls 254
. . . . . . . . . .
8 Audio system 274
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9 Clock 103 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
.
10 Center vents 268
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11 Outside temperature display 106
. . . . . . . . . . . . . . . . .
12 Touch screen 215
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Navigation system display (See the separate
“Navigation System Owner’s Manual”)
13 Security indicator light 40
. . . . . . . . . . . . . . . . . . . . . . .
14 Rear window and outside rear view
mirror defogger switch 56 . . . . . . . . . . . . . . . . . . . . . . .
15 Front passenger’s seat belt reminder light 76 . . . . .
16 Emergency flasher switch 60
. . . . . . . . . . . . . . . . . . . . Page
17 Glove box
110
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18 Trunk lid opener main switch 126
. . . . . . . . . . . . . . . .
19 Tire selector switch 442
. . . . . . . . . . . . . . . . . . . . . . . . .
20 Cigarette lighter 107
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
21 Cupholders 115
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22 Seat heater switches or Seat ventilator/heater
switches 61, 63 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
23 Traction control system off switch
(Twowheel drive models only) 419 . . . . . . . . . . . . . .
24 Driving pattern selector switch 353
. . . . . . . . . . . . . . .
25 Damping mode select switch
(GS430 only) 417 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
26 Coin box 116
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
27 Ashtray 107
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
28 Automatic transmission selector lever 353 . . . . . . .
29 Tire pressure warning system reset switch 440 . . . .
30 Hood lock release lever 124
. . . . . . . . . . . . . . . . . . . . .
31 Parking brake pedal 352
. . . . . . . . . . . . . . . . . . . . . . . . .
32 Switch box xix
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

For detailed information, refer to the description given in each Section\
.
PICTORIAL INDEX
xiiPage
1
Power window switches 37, 57
. . . . . . . . . . . . . . . . . . .
2 Driving position memory switches 198
. . . . . . . . . . .
3 Window lock switch 58
. . . . . . . . . . . . . . . . . . . . . . . . . .
4 Door lock switch 37
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5 Side vents 268
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6 Engine switch 342
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7 Automatic air conditioning controls 254
. . . . . . . . . .
8 Audio system 274
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9 Clock 103 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
.
10 Center vents 268
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11 Outside temperature display 106
. . . . . . . . . . . . . . . . .
12 Touch screen 215
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13 Security indicator light 40
. . . . . . . . . . . . . . . . . . . . . . .
14 Rear window and outside rear view
mirror defogger switch 56 . . . . . . . . . . . . . . . . . . . . . . .
15 Front passenger’s seat belt reminder light 76 . . . . .
16 Emergency flasher switch 60
. . . . . . . . . . . . . . . . . . . . Page
17 Glove box
110
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18 Trunk lid opener main switch 126
. . . . . . . . . . . . . . . .
19 Tire selector switch 442
. . . . . . . . . . . . . . . . . . . . . . . . .
20 Cigarette lighter 107
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
21 Cupholders 115
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22 Seat heater switches or Seat ventilator/heater
switches 61, 63 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
23 Traction control system off switch
(Twowheel drive models only) 419 . . . . . . . . . . . . . .
24 Driving pattern selector switch 353
. . . . . . . . . . . . . . .
25 Damping mode select switch
(GS430 only) 417 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
26 Coin box 116
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
27 Ashtray 107
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
28 Automatic transmission selector lever 353 . . . . . . .
29 Tire pressure warning system reset switch 440 . . . .
30 Hood lock release lever 124
. . . . . . . . . . . . . . . . . . . . .
31 Parking brake pedal 352
. . . . . . . . . . . . . . . . . . . . . . . . .
32 Switch box xix
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

For detailed information, refer to the description given in each Section\
.
PICTORIAL INDEX
xivPage
1
Tachometer 69
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 Headlight high beam indicator light 47
. . . . . . . . . . .
3 Turn signal indicator light 47
. . . . . . . . . . . . . . . . . . . .
4 Headlight indicator light 44
. . . . . . . . . . . . . . . . . . . . . .
5 Slip indicator light 418, 420
. . . . . . . . . . . . . . . . . . . . . .
6 Fog light indicator light 48
. . . . . . . . . . . . . . . . . . . . . . .
7 Driver’s seat belt reminder light 75
. . . . . . . . . . . . . . .
8 SRS warning light 76
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
9 Open door warning light 79
. . . . . . . . . . . . . . . . . . . . . .
10 Automatic transmission indicator lights 353 . . . . . .
11 Fuel gauge 68
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12 Fuel filler door indicator 128
. . . . . . . . . . . . . . . . . . . . .
13 Low fuel level warning light 80
. . . . . . . . . . . . . . . . . . .
14 Engine coolant temperature gauge 68
. . . . . . . . . . . .
15 Discharge warning light 77
. . . . . . . . . . . . . . . . . . . . . .
16 Brake system warning light (yellow) 75
. . . . . . . . . . . Page
17 Malfunction indicator lamp
77
. . . . . . . . . . . . . . . . . . .
18 Adaptive frontlighting system off
indicator light 46 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
19 Antilock brake system warning light 78
. . . . . . . . . .
20 Precollision system warning light 80
. . . . . . . . . . . .
21 Brake system warning light (red) 74
. . . . . . . . . . . . . .
22 Master warning light 78
. . . . . . . . . . . . . . . . . . . . . . . . .
23 Electric power steering system warning light 80 . .
24 Multiinformation display 82
. . . . . . . . . . . . . . . . . . . . .
25 Odometer and trip meter 70
. . . . . . . . . . . . . . . . . . . . .
26 Low tire pressure warning light 79
. . . . . . . . . . . . . . .
27 Intuitive parking assist indicator light 366
. . . . . . . .
28 Snow mode indicator light 364
. . . . . . . . . . . . . . . . . . .
29 Cruise control indicator light 392
. . . . . . . . . . . . . . . .
30 Power mode indicator light 364
. . . . . . . . . . . . . . . . . .
31 Damping mode indicator light 417
. . . . . . . . . . . . . . . .

For detailed information, refer to the description given in each Section\
.
PICTORIAL INDEX
xviPage
1
Tachometer 69
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 Headlight high beam indicator light 47
. . . . . . . . . . .
3 Turn signal indicator light 47
. . . . . . . . . . . . . . . . . . . .
4 Tail light indicator light 44
. . . . . . . . . . . . . . . . . . . . . . .
5 Slip indicator light 418, 420
. . . . . . . . . . . . . . . . . . . . . .
6 Fog light indicator light 48
. . . . . . . . . . . . . . . . . . . . . . .
7 Driver’s seat belt reminder light 75
. . . . . . . . . . . . . . .
8 SRS warning light 76
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
9 Open door warning light 79
. . . . . . . . . . . . . . . . . . . . . .
10 Automatic transmission indicator lights 353 . . . . . .
11 Fuel gauge 68
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12 Fuel filler door indicator 128
. . . . . . . . . . . . . . . . . . . . .
13 Low fuel level warning light 80
. . . . . . . . . . . . . . . . . . .
14 Engine coolant temperature gauge 68
. . . . . . . . . . . .
15 Discharge warning light 77
. . . . . . . . . . . . . . . . . . . . . .
16 Brake system warning light (yellow) 75
. . . . . . . . . . . Page
17 Malfunction indicator lamp
77
. . . . . . . . . . . . . . . . . . .
18 Adaptive frontlighting system off
indicator light 46 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
19 Antilock brake system warning light 78
. . . . . . . . . .
20 Precollision system warning light 80
. . . . . . . . . . . .
21 Brake system warning light (red) 74
. . . . . . . . . . . . . .
22 Master warning light 78
. . . . . . . . . . . . . . . . . . . . . . . . .
23 Electric power steering system warning light 80 . .
24 Multiinformation display 82
. . . . . . . . . . . . . . . . . . . . .
25 Odometer and trip meter 70
. . . . . . . . . . . . . . . . . . . . .
26 Low tire pressure warning light 79
. . . . . . . . . . . . . . .
27 Intuitive parking assist indicator light 366
. . . . . . . .
28 Snow mode indicator light 364
. . . . . . . . . . . . . . . . . . .
29 Cruise control indicator light 392
. . . . . . . . . . . . . . . .
30 Power mode indicator light 364
. . . . . . . . . . . . . . . . . .
31 Damping mode indicator light 417
. . . . . . . . . . . . . . . .

G00105
G00104
Shift while pressing the brake pedal. (Engine
switch must be selected in “IG− ON” mode.)
P:
Parking and engine starting
R: Reverse position
N: Neutral position
D: Normal driving position
(Shifting into overdrive possible)
S: “S” mode driving
+: Upshifting
–: Downshifting
SELECTOR LEVER POSITION
QUICK REFERENCE
3
3. AUTOMATIC TRANSMISSION
OPERATION OF SELECTOR LEVER

KEYS AND DOORS
27
STARTING THE ENGINE WHEN THE ELECTRONIC KEY
BATTERY IS DISCHARGED
If the electronic key battery is discharged, the engine can
be started using the following procedure.
1. Unlock the door with the
mechanical key and bring the
electronic key into the vehicle.
G11038
2. While the brake pedal is depressed, hold the ornament side
of the electronic key about 10 mm (0.4 in.) over the engine
switch as shown.
3. Within 5 seconds of the chime sounding, push the engine
switch with the brake pedal depressed to start the engine.
When you push the engine switch with the brake pedal not
depressed at this time, the engine will not start, but it is possible
to select “ACC”, “IG− ON” and “OFF” mode.
If it is not possible to start the engine or change the mode using
this procedure, contact your Lexus dealer. In addition, we recommend that the electronic key battery be
changed as soon as possible.
For vehicles sold in U.S.A.
FCC ID: NI4TMLF1
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
(1) this device may not cause harmful interference,
and (2) this device must accept any interference re-
ceived, including interference that may cause unde-
sired operation.
CAUTION
Changes or modifications not expressly approved by
the party responsible for compliance could void the
user’s authority to operate the equipment.

KEYS AND DOORS
38
Automatic door locking and unlocking
functions
AUTOMATIC DOOR LOCKING
You can select the following functions:
Locking linked with the shift position
All doors are automatically locked when the selector lever is
moved out of “P” position.
 Locking linked with vehicle speed
All doors are automatically locked when the vehicle speed
goes above about 20 km/h (12 mph).
You can set or cancel the automatic door locking
functions:
Be sure to apply the parking brake when performing the
following operations.
To select the locking linked with the shift position:
1. Close all doors and select the engine switch in “IG −ON”
mode.
2. Shift the selector lever to the “P” position.
3. Within 10 seconds of selecting the engine switch in “IG −ON”
mode, press and hold the driver’s side power door lock switch
in the lock position for 5 seconds and then release.
The doors will be locked and unlocked to indicate that the
function is set.
To cancel the function, do the above operation again. To select the locking linked with the vehicle speed:
1. Close all doors and select the engine switch in “IG
−ON”
mode.
2. Shift the selector lever from “P” to the “N” position.
3. Within 10 seconds of selecting the engine switch in “IG −ON”
mode, press and hold the driver’s side power door lock switch
in the lock position for 5 seconds and then release.
The doors will be locked and unlocked to indicate that the
function is set.
To cancel the function, do the above operation again.

KEYS AND DOORS
39
AUTOMATIC DOOR UNLOCKING
You can select the following functions:

Unlocking linked with the engine switch
All doors are automatically unlocked when the the driver’s door
is opened within 10 seconds after the engine switch is selected
in “ACC” or “OFF” mode.
 Unlocking linked with the shift position
All doors are automatically unlocked when the selector lever
is moved to “P” position.
You can set or cancel the automatic unlocking functions:
Be sure to apply the parking brake when performing the
following operations.
To select the unlocking linked with the engine switch:
1. Close all doors and select the engine switch in “IG −ON”
mode.
2. Shift the selector lever from “P” to the “N” position.
3. Within 10 seconds of selecting the engine switch in “IG −ON”
mode, press and hold the driver’s side power door lock switch
in the unlock position for 5 seconds and then release.
The doors will be locked and unlocked to indicate that the
function is set.
To cancel the function, do the above operation again. To select the unlocking linked with the shift position:
1. Close all doors and select the engine switch in “IG
−ON”
mode.
2. Shift the selector lever to the “P” position.
3. Within 10 seconds of selecting the engine switch in “IG −ON”
mode, press and hold the driver’s side power door lock switch
in the unlock position for 5 seconds and then release.
The doors will be locked and unlocked to indicate that the
function is set.
To cancel the function, do the above operation again.