Valet switch location

There was not a factory installed alarm for this car, any "toyota" security system would have been instaled at the dealer or the regional distribution port depending on what region the car was originally sold from. Do you have a remote for the system? Also check for a red valet button on the dash that can be toggled on/off. The port systems are also known for toggle switches located on the driver kick panel or under the driver dash. If you don't have a remote and manually unlocking the car from closed driver door will not disable the system you will have to locate the toggle/valet switch.

If this is a real factory alarm, you can adjust the alarm settings by following the instructions in the owners manual. To get an owners manual, go to the Chevrolet Owners website and sign up (it's free). You'll need your VIN. http://www.gm.com/gmownercenter/chevrolet/

The siren is merely the part of the alarm that gives you an audible alert when you arm, disarm the alarm. It also alerts you to intrusion and tampering. The siren does not arm itself and lock you out.
Locate your valet switch and turn the ignition on, press and hold the valet switch, count to five and release. the unit will be in valet at this point. Locate the model number and report back for the instructions to disable the passive arming.

I am assuming that you want to disable the system temporarily by putting it in valet mode. You will need to locate the valet button; they are usually installed under the dash within reach of the driver. The button should be black and about 1/2" in diameter.
Pressing and holding the button for 3 seconds while the alarm is disarmed will put the system into valet mode. The system will turn the LED light on steady and chirp the siren to indicate that valet mode has been activated. To exit valet mode, press and release the button. The LED will turn off and the siren will chirp to indicate that you have exited valet mode.

The included link is for the manual, see page 8.
http://www.caralarm.com/manuals/K-9/K9-Mundial-ss.pdf

Although you did not mention the type of alarm, usually the process for manaully disarming an alarm is: key on, press and release valet switch. The valet switch should be a push button located near the drivers kick panel (where your left foot would rest when driving) or, for newer alarm models,the valet switch is incorporated into the LED light or the antenna.

Look for some sort of toggle switch associated with the alarm system. (something small similar to this [http://www.mouser.com/images/ckcomponents/lrg/7000_toggle_series_new_SPL.jpg]) They call this a valet switch and it's located somewhere hidden and out of the way - usually under the dash - but still in an accessible spot. This basically disables the alarm. Typically, you'd turn the key on (but engine off) then flip the switch. This will put the car into valet mode and basically disable it. There is also usually some sort of LED light associated with the system - again typically blinking when the system is armed - but it will be solid once in valet mode. The clicking you are hearing is the relay that is triggering things. I'm assuming someone got tired of the alarm sounding and got rid of the siren it or clipped the wires to it - hence why your only hearing the clicking and seeing the light flash.

look for the switch under the dash board open door alarm will go off turn the key on and press and hold valet switch intil alarm go off call me for more questions at 520-882-8979

Ok, try this.
Put the key in the ignition, and turn forward
all the way just before cranking. Then within
5 seconds, press and hold in the valet/overide
button, found under the dash area in most cases,
until the installed LED (the blinking light)
in your dash area comes on solid.
(Your valet switch might be the toggle (on/off) type.
in this case, key on, flip switch in oposite direction,
key off.)

This should be valet. This overides
the starter kill relay in the alarm harness,
and returns the car back to disarmed mode.

The only thing that will work now on your system,
is the keyless entry if installed.

Just Repeat these steps to rearm your system.

First you have to know where the valet switch is located. When you locate the switch turn ignition to on position ans flip the switch. the led light for the alarm should stay on STEADY (with out flashing).

Hi there. As far as the valet/overide button, it's a hidden
device-switch, a little spring loaded micro button,
red or black possibly and is probably down under
the dash area, near your knee/leg. In some
remote start/alarm combos, the antenna on the window
glass will also have an override/valet button.
Older sytems will have a flip type toggle switch.

When you locate the button or switch,
turn on the ignition key, press and hold
in the button until the alarm chirps 1 time
(for toggle types, key on, flip switch in the
opposite direction, then key off). This should over ride the system. You would get a single chirp to confirm from the siren.
The LED (light emiting diode) light in the dash
should also go on solid. This is valet/overide/reset.
This should correct any issues like starter disable,
or anti-hijack. Your keyless entry, if installed,
will still be operable. The have it inspected for the
falsing issues you are experience at a local shop.
You would repeat the same steps to toggle back into user mode.