2006 Lexus GS430 key battery

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.

OCCUPANT RESTRAINT SYSTEMS
203
Conditions for memorized position activation

Engine switch in “IG−ON” mode and selector lever in ”P”
position, with the vehicle stopped.
 Engine switch in “OFF” mode and within 30 seconds of
opening driver’s door.
The memorized position can be activated, except for the tilt
and telescopic steering.
If any driving position memory switch is pushed while one of
the memorized driving position profiles is being activated, the
operation will stop.
To activate the system, push the desired button (“1”, “2” or \
“3”)
again.
The driving position memory control system cannot be
operated while the vehicle is moving.
If the vehicle’s battery is disconnected, the computer’s
memory will be erased and the memorized positions will have
to be set again.
CAUTION
 Do not start the vehicle while the adjustments are
being made.
 Take care not to select the wrong button, or the seat
could strike the rear passenger or hit your body
against the steering wheel. If this happens, you can
stop the movement by pressing another driving
position memory switch.
MEMORY RECALL FUNCTION
You can recall the memorized position using the entry
function or wireless remote control.
If you unlock the door using the entry function or wireless
remote control, the memorized seat position is recalled when
the driver’s door is opened. The memorized steering wheel
position will be recalled when you push the engine switch.
This function can be used after setting by the following
procedure.
Setting the driving position onto the electronic key
The driver’s door must be closed with the engine switch turned
off.
1. Push and hold the previously memorized driving position
button “1”, “2” or “3”.
2. While depressing the button above, push and hold the
“LOCK” or “UNLOCK” button on the electronic key until a beep
sounds.
If you wish to set other driv ing position, repeat the above
procedure. The previous setting will be erased and the new
position will be set.
Resetting the driving position on the electronic key
The driver’s door must be closed with the engine switch turned
off.
1. Push and hold the “SET” button.
2. Push and hold the “LOCK” or “UNLOCK” button on the
electronic key until two beeps sound.

STARTING AND DRIVING
357
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.
5. Unlock the door with the
mechanical key and bring the
electronic key into the vehicle.
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6. 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.
7. 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.
Stopping the engine
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If you press the engine switch while the selector lever is
in “P” and the engine is running, regardless of brake pedal
position, the engine will be turned off.
With the transmission not in “P”, the engine switch is selected
in “ACC” mode.
If, in an emergency, you must turn the engine off while the
vehicle is moving, press the engine switch for more than 3
seconds. At this time, “ACC” mode is selected.
Several hours after the engine is turned off, you may hear a
sound coming from underneath the luggage compartment for
several minutes. This is normal operation and does not
indicate a malfunction. (See page vi.)

IN CASE OF AN EMERGENCY
468
IF YOUR ENGINE STALLS WHILEDRIVING
If your engine stalls while driving . . .
1. Reduce your speed gradually, keeping a straight line. Move
cautiously off the road to a safe place.
2. Turn on your emergency flashers.
3. Turn the engine switch off, and try starting the engine again.
If the engine will not start, see ”If your vehicle will not start”\
.
CAUTION
If the engine is not running, the power assist for the
brakes and steering will not work, so steering and
braking will be much harder than usual.
IF YOUR VEHICLE WILL NOT START
(a) Simple checks
Before making these checks, make sure you have followed the
correct starting procedure instructions in ”Operating the
engine switch” on page 348 and that you have sufficient fuel.
Since your vehicle is equipped with the engine immobilizer,
also check whether the other keys will start the engine. If they
work, your electronic key may be broken. Have the key
checked at your Lexus dealer. If none of your keys work, there
may be a malfunction in the engine immobilizer. Call your
Lexus dealer. See ”Keys” on page 8.
If the engine is not turning over or is turning over too
slowly
1. Check that the battery terminals are tight and clean.
2. If the battery terminals are O.K., switch on the interior light.
3. If the light is out, dim or goes out when the starter is cranked,
the battery is discharged. You may try jump starting. See ”(c)
Jump starting” for further instruction.
4. If the engine does not start even after the battery has been
recharged or replaced, see “(d) Starting the engine after a
battery discharge” on page 472.
If the light is O.K., but the engine still will not start, it needs
adjustment or repair. Call a Lexus dealer, Roadside
Assistance or Customer Service Assistance. (See
”Foreword”.)