2006 Lexus GS430 parking brake

GAUGES, METERS AND SERVICE REMINDER INDICATORS
74
CAUTION
To reduce the chance of injury in case of an accident or
a sudden stop, keep the switch box closed when not in
use while driving.
G13106
The light sensitive optitron meter sensor is located under the
high mounted stoplight.
NOTICE
Do not apply window tint or a sticker on the rear
window. Otherwise the light sensitive optitron meter
may not operate properly.
 If snow, mud, frost or the like is attached to the rear
window just behind the sensor, remove it soon, or the
light sensitive optitron meter may not operate
properly.
SERVICE REMINDER INDICATORS AND WARNING BUZZERS
IF THIS INDICATOR OR
BUZZER COMES ON ...DO THIS.
(a)or
(Red indicator and buzzer)If parking brake is off,
stop immediately and
contact Lexus dealer.
(b)
(Yellow indicator)
Take vehicle to Lexus
dealer. If brake
system warning light
(red) is also on, stop
immediately and
contact Lexus dealer.
(c)
(Indicator and buzzer)
Fasten driver’s seat
belt.
(d)WG5Fasten front
passenger’s seat belt.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
76IF THIS INDICATOR OR
BUZZER COMES ON ...
DO THIS.
(p)Key reminder
buzzerTurn off the engine
switch.
(a) Brake System Warning Light (red) and Buzzer
This light comes on in the following cases when the engine
switch is selected in “IG −ON” mode.
 When the parking brake is applied ...
GS430—This light comes on fo r a few seconds when the
engine is started even after the parking brake is released.
GS300—This light comes on fo r a few seconds when the
engine switch is selected in “IG −ON” mode even after the
parking brake is released.
If you drive your vehicle without releasing the parking brake,
the buzzer sounds and the message “PARK BRAKE” appears
on the multi −information display.
 When the brake fluid level is low ...
CAUTION
It is dangerous to continue driving normally when the
brake fluid level is low.
Have your vehicle checked at your Lexus dealer in the
following case:
The light does not come on even if the parking brake is
applied when the engine is started.
 The light does not come on even if the engine is started with
the parking brake released.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
77
A warning light turning on briefly during operation does not
indicate a problem.
CAUTION
If either of the following conditions occurs, immediately
stop your
vehicle at a safe place and contact your Lexus
dealer.
 The light does not turn off even after the parking
brake is released while the engine is running.
In this case, the brakes may not work properly and
your stopping distance will become longer. Depress
the brake pedal firmly and bring the vehicle to an
immediate stop.
 The brake system warning light remains on together
with the “ABS” warning light.
In this case, not only the antilock brake system will
fail but also the vehicle will become extremely
unstable during braking.
GS430 only—Any of the following conditions may occur,
but do not indicate the malfunction:
The light may stay on for about 60 seconds after the engine
is started. It is normal if it turns off after a while.
 Depressing the brake pedal repeatedly may turn on the
warning light and buzzer. It is normal if the light turns off and
the buzzer stops sounding after a few seconds. 
You may hear a small sound in the engine compartment
after the engine is started or the brake pedal is depressed
repeatedly. This is a pump pulsating sound of the brake
system, and it is not a malfunction.
(b) Brake System Warning Light (yellow)
The light comes on when the engine switch is selected in
“IG−ON” mode.
GS430—If the engine is started, and the traction control
system, vehicle stability control system and hill −start assist
control system work properly, the light turns off after a few
seconds. Thereafter, if any part of the system malfunctions,
the light comes on again.
GS300—If the engine switch is selected in “IG −ON” mode, and
the traction control system, vehicle stability control system and
hill −start assist control system work properly, the light turns off
after a few seconds. Thereafter, if any part of the system
malfunctions, the light comes on again.
Although it is no problem to continue driving, have your vehicle
checked by your Lexus dealer as soon as possible.
(c) Driver’s Seat Belt Reminder Light and Buzzer
The light and buzzer act as a reminder to have the driver buckle
up the seat belt.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
83
How to check all the service reminder
indicators
(except the low fuel level warning light):
1. Apply the parking brake.
2. Open the door.
The following service reminder indicator should come on. It
goes off when you close the door completely.
3. Select the engine switch in “IG−ON” mode.
The following service reminder indicators should come on.

or
(red)
or
or

(yellow)
WG10
WG6 WG7 WG8
The following service reminder indicators go off after a few
seconds.
WG6
WG8 WG10
GS300 only—The above and following service reminder
indicators go off after a few seconds.
(yellow)

or
The following service reminder indicator goes off after about 6
seconds.
The lights other than the slip indicator light may stay on for
about 60 seconds after the engine is started. It is normal if they
go out after a while.
If any service reminder indicator or warning buzzer does not
function as described above, have it checked by your Lexus
dealer as soon as possible.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
87
Trunk Open Warning
G13007
When any door, hood or trunk is open with the engine
switch in “IGON” mode, a message appears to let you
know which door, the hood or trunk is open. If you
continue driving in this condition, the master warning
light flashes and a warning tone sounds when the vehicle
speed exceeds 5 km/h (3 mph).
If any of the above warning messages appears, stop your
vehicle and close the door, hood or trunk securely.
 Moon Roof Warning
G13013
If the driver’s door is opened with the engine switch
turned off and the moon roof opened, the master warning
light flashes, a warning tone sounds and the above
message appears.
When you leave your vehicle, be sure to close the moon roof.
Parking Brake Release Warning
G13009
If you start driving with the parking brake applied, the
master warning light flashes, a warning tone sounds and
the above message appears when the vehicle speed
exceeds 5 km/h (3 mph).
If the above warning message appears, stop your vehicle and
release the parking brake.
 Headlight Leveling System Failure Warning
G13010
If there is a problem in the automatic headlight leveling
system, the master warning light comes on, a warning
tone sounds and the above message appears.
If the above warning message appears, have your vehicle
checked by your Lexus dealer as soon as possible.

TOUCH SCREEN
221
Initial screen
G18001
When you select the engine switch in “ACC” or “IG −ON” mode,
the initial screen appears and the system begins operating.
After a few seconds, the initial screen disappears.
CAUTION
When the vehicle is stopped with the engine running,
always apply the parking brake for safety.
Touch switch operation
This system is operated mainly by the switches on the screen.
To prevent damage to the screen, lightly touch switches on the
screen with your finger. When you touch a switch on the
screen, a beep sounds.
Do not use objects other than your finger to touch the screen.
INFORMATION
 If the system does not respond to a touch of a switch,
move your finger away from the screen and then
touch it again.
 You cannot operate dimmed switches.
 Wipe off fingerprints on the surface of the display
using a glass cleaning cloth.
 The displayed image may become darker and moving
images may be slightly distorted when the display is
cold.
 When you look at the screen through polarized
material such as polarized sunglasses, the screen
may be dark and hard to see. If so, change the angle
of the screen or take off your sunglasses.

AUDIO
313
DVD player operation (For a Mark Levinson
brand audio system)
The DVD player can play audio CDs, DVD video discs and
video CDs.
For appropriate discs for this paper, see “Audio system
operating hints” on page 339.
For safety reasons, you can enjoy DVD video discs and video
CDs only when the vehicle is completely stopped with the
engine switch in “ACC” or “IG−ON” mode and the parking
brake applied. While you are driving, you can hear audio alone
even in the DVD video or video CD mode.
The DVD player can play the discs labeled as shown below. (a) Inserting or ejecting discs
The engine switch must be in “ACC” or “IG
−ON” mode.
Your automatic changer can store up to 6 discs.
G22048
 Setting a single disc:
1. Push the “LOAD” button briefly.
The green indicators at both ends of the slot start blinking and
“WAIT” appears on the display. After the blinking indicators
stay on and the “WAIT” changes to the “LOAD”, the DVD door
opens.

SECTION 3 – 1
345
STARTING AND DRIVING
Starting and driving
Three−way catalytic converters346
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine exhaust caution 347
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating the engine switch 348
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parking brake 358
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . .
Automatic transmission 359
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electronic throttle control system 371
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Intuitive parking assist 372
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear view monitor system 395
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cruise control 398
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . .
Dynamic radar cruise control 401
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adaptive variable suspension system 424
. . . . . . . . . . . . . . . . . . . . . . .
Traction control system 424
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vehicle stability control system 427
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hill −start assist control system 429
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Variable gear ratio steering system 431
. . . . . . . . . . . . . . . . . . . . . . . . .
Vehicle dynamics integrated management 432
. . . . . . . . . . . . . . . . . . .
Brake system 433
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . .
Brake pad wear limit indicators 438
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electric power steering system 438
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tire pressure warning system 440
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pre−collision system 449
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\