2006 Lexus GS430 check engine

GAUGES, METERS AND SERVICE REMINDER INDICATORS
92
Tire Pressure Warning
G13025
When the low tire inflation pressure is detected while
driving, the tire pressure warning light and master
warning light come on, and the above message appears.
Adjusting the tire inflation pressure will turn off the warning
message. If the message remains on, have your vehicle
checked by your Lexus dealer.
G13024
This message indicates the tire pressure warning system is
initialized. After replacing the tires or wheels, adjust all 4 tires
to specified tire inflation pressure and initialize the tire pressure
warning system. To initialize the system, start the engine and
push the tire pressure warning reset switch for longer than 3
seconds with the vehicle stopped. The above message
appears.
G13026
If there is a problem in the tire pressure warning system,
the tire pressure warning light blinks and master warning
light comes on, and the above message appears.
The tire pressure warning light system is not working properly.
In this case, it is probable that a tire pressure warning valve and
transmitter is malfunctioning or the system is experiencing
signal interference. In the case of signal interference, the
warning message will turn off when the interference ends. If
the tire pressure warning light blinks and master warning light
comes on, and the above message appears frequently, have
your vehicle checked by your Lexus dealer.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
94
G13017
If the steering lock is malfunctioning, the master warning
light comes on, the engine switch indicator light blinks
amber and the above message appears.
The engine will not start in this case. Contact your Lexus
dealer as soon as possible.
G13018
If the steering lock is not unlocked due to the load applied
to the steering wheel when pushing the engine switch, the
master warning light comes on, the engine switch
indicator light blinks green and the above message
appears.
The engine will not start in this case. To start the engine, push
the engine switch again while turning the steering wheel in
either direction.
Intuitive Parking Assist Warning
G13077
If icicles, snowflakes or mud gets on the ultrasonic
sensors of the intuitive parking assist when it is on, the
above message appears and the vehicle symbol and
indicator bars continue flashing until the suspected
sensor is cleaned.
Remove the foreign matter or deice the sensor, the intuitive
parking assist returns to normal.
G13076
If the ultrasonic sensor of the intuitive parking assist is
malfunctioning or a sensor cable is broken when it is on,
the malfunctioning sensor flashes, 2 beeps sound 5 times
and the above message appears.
The flashing sensor is disabled, but other sensors work
properly. Have your vehicle checked by your Lexus dealer as
soon as possible.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
96In the above conditions, press the control lever upward in the
“+ RES” direction and release it. The dynamic radar cruise
control will be restored, however, even after the weather
clears, if the setting operation cannot be performed or if the
warning message still appears, the system might have
malfunctioned. Although it is no problem to continue driving,
contact your Lexus dealer.
G13075
If the system malfunction is detected when dynamic radar
cruise control is in the “RADAR READY” mode or
operating, the master warning light comes on and the
“CRUISE” indicator light flashes. At this time a warning
tone sounds and the above message appears.
If this message appears, stop your vehicle in
a safe place, turn
the engine switch off, and then restart it to reset the system.
If the setting still cannot be made or the same message
appears again, the system might have malfunctioned.
Although it is no problem to continue driving, contact your
Lexus dealer.
NOTICE
While you are cruising with the dynamic radar cruise
control on, if the master warning light comes on, the
“CRUISE” indicator light flashes, “CHECK CRUISE
SYSTEM” appears on the multiinformation display and
the warning tone sounds, turn the engine switch off and
then on again. If the function is cancelled again after
setting or if settings cannot be made, the dynamic radar
cruise control system may be malfunctioning.
Although it is no problem to continue driving, have your
vehicle checked by your Lexus dealer.

EXTERIOR EQUIPMENT
138To open the moon roof:
Turn the key in the unlocking
direction and hold it.
After the door is unlocked, the moon roof begins to open. To
stop in the middle, return the key.
Jam protection function
If something gets caught into the roof opening during closing
operation, the moon roof stops and is open.
If the moon roof receives a strong impact, this function may
work even if nothing is caught.
If the battery is disconnected or run down
The moon roof may not operate automatically and the jam
protection function will not function correctly after you
reconnect, replace or recharge the battery. In any of these
cases, you should normalize the moon roof.
To normalize the moon roof, push and hold the “UP” button until
the moon roof tilts all the way up and then down a little
automatically.
Make sure the moon roof opens and closes automatically. If
the moon roof cannot be operated properly, have it checked by
your Lexus dealer.
CAUTION
To avoid serious personal injury, you must do the
following.
 While the vehicle is moving, always keep the heads,
hands and o ther parts of the bodies of all occupants
away from the roof opening. Otherwise, they could
be seriously injured if the vehicle stops suddenly or
if the vehicle is involved in an accident.
 Before you close the moon roof, always make sure
there is nobody around the moon roof. You must also
make sure nobody places his or her head, hands and
other parts of the body in the roof opening. If
someone’s neck, head or hands get caught in the
closing roof, it could result in death or serious injury.
When anyone closes the moon roof, first make sure
it is safe to do so.
 Be sure to turn the engine switch to “OFF” mode
when you leave your vehicle.
 Never leave anyone (particularly a small child) alone
in your vehicle, especially when the engine switch is
on. Otherwise, he/she could use the moon roof
switches and get trapped in the roof opening.
Unattended persons (particularly a small child) can
be involved in a serious accident.
 Never sit on top of the vehicle around the roof
opening.

AIR CONDITIONING
274
G21016
Side vents (driver’s side)
G21064
Side vents (front passenger’s side)
G21017
Rear vents
If air flow control is not satisfactory, check the center
vents, side vents and rear vents. They may be opened or
closed as shown.
When outside temperature is low like a winter season, air flow
temperature from the center vents, side vents and rear vents
may not be warmed up enough for a while until the engine
coolant temperature becomes high enough.
If air flow from the center vents, side vents and rear vents is not
satisfactory, air flow direction can be changed manually by
adjusting the vents fin direction or the vents may be closed.

AUDIO
306
CD player operation
(a) Inserting or ejecting CDs
The engine switch must be in “ACC” or “IG−ON” mode.
Your automatic changer can store up to 6 discs.
G22022
 Setting a single CD:
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 CD door
opens. 2. Insert only one disc while the CD door is open.
You can set a disc at the lowest empty disc number.
After insertion, the set disc is automatically loaded.
If the label faces downward, the disc cannot be played. In this
case, “CD CHECK” appears on the display.
If you need to insert the next disc, repeat the same procedure
to insert another disc.

Setting all the discs:
1. Push the “LOAD” button until you hear a beep.
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 CD door
opens.
2. Insert only one disc while the CD door is open.
The CD door closes and “WAIT” appears again.
3. Insert the next disc after the “WAIT” changes to the
“LOAD” and the CD door opens.
4. Repeat this procedure until you insert all the discs.
To cancel the operation, push the “LOAD” or “DISC” button.
If you do not insert the discs within 15 seconds after pushing
the “LOAD” button and “LOAD” is displayed, the operation will
be canceled automatically.

STARTING AND DRIVING
347

Avoid racing the engine.
 Do not pushstart or pullstart your vehicle.
 Do not turn off the engine while the vehicle is moving.
 Keep your engine in good running order.
Malfunctions in the engine electrical system,
electronic ignition system or fuel system could cause
an extremely high threeway catalytic converter
temperature.
 If the engine becomes difficult to start or stalls
frequently, take your vehicle in for a checkup as
soon as possible. Remember, your Lexus dealer
knows your vehicle and its threeway catalytic
converter system best.
 To ensure that the threeway catalytic converter and
the entire emission control system operate properly,
your vehicle must receive the periodic inspections
required by the Lexus Maintenance Schedule. For
scheduled maintenance information, refer to the
“Owner’s Manual Supplement / Scheduled
Maintenance”.
ENGINE EXHAUST CAUTION
CAUTION
Avoid inhaling the engine exhaust. It contains
carbon monoxide, which is a colorless and odorless
gas. It can cause unconsciousness or even death.
 Make sure the exhaust system has no holes or loose
connections. The system should be checked from
time to time. If you hit something, or notice a change
in the sound of the exhaust, have the system checked
immediately.
 Do not run the engine in a garage or enclosed area
except for the time needed to drive the vehicle in or
out. The exhaust gases cannot escape, making this
a particularly dangerous situation.
 Do not remain for a long time in a parked vehicle with
the engine running. If it is unavoidable, however, do
so only in an unconfined area and adjust the heating
or cooling system to force outside air into the vehicle.
 Keep the trunk lid closed while driving. An open or
unsealed trunk lid may cause exhaust gases to be
drawn into the vehicle.

STARTING AND DRIVING
348
To allow proper operation of your vehicle’s
ventilation system, keep the inlet grilles in front of the
windshield clear of snow, leaves, or other
obstructions.
 If you smell exhaust fumes in the vehicle, open the
windows and close the trunk lid to ensure plenty of
fresh air enters the vehicle. If you can smell exhaust
fumes even though th ere are no other vehicles in the
surrounding area, have your vehicle checked by your
Lexus dealer. Continued inhalation of exhaust fumes
can lead to death by gas poisoning.OPERATING THE ENGINE SWITCH
G31030a
 1 Electronic key 2Engine switch
3Automatic transmission selector lever
4Brake pedal