Alarm button no workin, whn i press it, lights up bt no sound,

Every car brand and model has its procedure to stop the flashing light and alarm sounding.
But still the common procedure is Make sure boot and bonnet are closed properly.

It can also be a switch, but check your alarm by locking yourself inside the car, and then press the close button on the key 2 times repeatedly until the lock control on the door doesn't make anything. Then open the door by pushing the lever or open the hood . If the horn sounds and the lights blink your alarm is ok , if only the lights blink you should take it to dealer. You can stop the hazard lights and horn sound by pressing the unlock button on the key.

Factory alarms rarely false alert, maybe someone did tamper with the car and ran off before you saw him. The one thing that will often trip alarms is a bad battery in the car, have it tested. Your car may have an add-on alarm in which case anything goofy can happen. It's odd that you had to hit the panic button to shut the alarm off, but if it functions normally otherwise it's unlikely to need a new battery. Is it at all possible that you hit the panic button and that caused the alarm to sound? If it was in your purse or pocket maybe it got pressed in which case it might be normal for you to have to hit panic again to turn it off.

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Check owners manual to find out which fuse goes to the transmission/overdrive controls, then check and/or replace the fuse.

Battery Constant 12v+ Positive Wire (+): Black/Yellow
Battery Constant 12v+ Positive Wire Location: Ignition Switch Harness

Starter Positive Wire (+): Blue/Red
Starter Positive Wire Location: Ignition Switch Harness

Ignition Positive Wire (+): Red
Ignition Positive Wire Location: Ignition Switch Harness

Accessory Positive Wire (+): Red/Yellow
Accessory Positive Wire Location: Ignition Switch Harness

Parking Light Positive Wire (+): Red
Parking Light Positive Wire Location: Low In Drivers Kick Panel

Power Door Lock Negative Wire (-): Add Actuator. This vehicle uses a central door locking system. When connecting a keyless entry, you will need to add a door lock actuator and some units will also require (2) extra relays.
Power Door Lock Negative Wire Location: To Drivers Door Only

Power Door Unlock Negative Wire (-): Add Actuator. This vehicle uses a central door locking system. When connecting a keyless entry, you will need to add a door lock actuator and some units will also require (2) extra relays.
Power Door Unlock Negative Wire Location: To Drivers Door Only

Door Trigger Negative Wire (-): Red/White
Door Trigger Negative Wire Location: In Black Plug, Above Hood Release

Domelight Supervision Wire: Use Door Trigger, Requires Relay
Domelight Supervision Wire Location: N/A

Horn Negative Wire (-): Red/Green
Horn Negative Wire Location: At Steering Column Harness

Tachometer Wire Negative Wire (-): Black/Blue
Tachometer Wire Negative Wire Location: At ECM, Under Drivers Side Dash

Brake Light Positive Wire (+): White/Black
Brake Light Positive Wire Location: At Switch Above Brake Pedal

CODE ALARM SYSTEM

Used on:
Impreza 1996-2001
Legacy 1995-1999
Forester 1998-2000

Battery GP-23A

Lock: Left button will lock all doors. Double chirp indicates locked.
Unlock: Right button will unlock driver's door only. Hold unlock button app 6 seconds, it will unlock all doors including rear gate. Single chirp indicated unlock.
If the car chirps or lights flash 4x the alarm was triggered.
Panic. Press both buttons to activate emergency honk and flashing lights.
Valet mode: With optional alarm onlyPress the red alarm button on the left of the steering wheel. The light will quickly double flash. To re-set back to normal mode, press the red alarm light button again

Battery failed and lights flashing?
Parking lights will flash when the vehicle's battery is disconnected and reconnected.
To stop lights from flashing, either:
Press remote transmitter "UNLOCK" button once OR turn the ignition switch to the "ON" position and press programming button for one second (see below).
The vehicle interior (courtesy) light and door open warning light (DOOR AJAR indicator) will then illuminate for 60 seconds when the ignition is turned off, or until the doors are locked with the remote transmitter. Yes, the dashboard instrument panel lights will flash when the parking lights flash.

Programming or Overriding the Alarm when you have lost the remote
Open driver's door.
Turn ignition key to 'On'
Press and *hold programming button* in (see diagram, button under dashboard)
After 15 seconds the the door locks will cycle 3 times. Do not release Programming button.
Press lock (left) button the remotes to be programmed. The door locks will cycle one time. Exit programming mode by releasing Programming button under dashboard and turning key to off.

Code Alarm Programming Button is under dashboard on the kick panel by the driver's left knee, left of the steering column. If you can't find it, it might still be tucked up in the wiring harness higher up in that same general area. The botton is recessed in a plastic ring (see diagram).
This button must be pressed while programming remotes or if the battery was disconnected and the lights are flashing.

just connect the terminals,and wait till the alarm stops(30secs)then UNLOCK/HOLD KEY OVER 30 secs,windows go down.then lock/hold key over,windows go up.then press remote unlock button for 30 secs,you have just reset the alarm system/central locking/window comfort facility.....has to be done EVERY time you disconnect battery........

You need to find the black push button called the valet button. That is the overide. Get in the car turn the key to IGN as the alarm is going off and then you have either 5 or 10 seconds to push that button once and then 2-5 seconds later the alarm is shut off. To put the car into valet mode which means no alarm at all you put the key to IGN push that button once then pull key out at which point the blue light should turn solid blue.

Or option two is you open a door and hit the lock, then unlock, then lock button again on the remote and the blue led will be solid which means no crazy alarm.

ok sounds like you need to reset you alarm system.disconnect the batterie anf reconnect 2 times should cause your comp alarm to reset.

check fuse for low beam, then possibly both low beam globes. they could have blown.
the key remote may need reprograming into system try put key in ignition in on position then press remote buttons a couple of times then try if no good need to go to dealer to be programed into system again or it needs repairing/replacing.

It sounds like the car's security system is going off. Is there a key fob to lock/unlock doors and turn on alarm? If there is, connect battery, and immediately press alarm/unlock button to turn alarm off.
I have a truck with an aftermarket alarm system installed by the previous owner, my battery died, and when I hooked up a new one the alarm went off, and it took a while before I hit the key fob button, but it stopped it. Let me know if this works for u.

sounds like you have an aftermarket alarm not factory most of these alarma are equipped with a starter interupt that will not vehicle start. when connecting the battery ist is normal for the alarm to sound some alarms may not sound if ignition is on while connecting battery, however this is not reccomended. after connecting battery and alarm sounds you should be able to turn it off with trasmitter, if you do not have one then you will need to put key in ignition turn it on and look under the dash for a valet switch or togle switch this may override the alarm and let car start if you cannot locate this you can alway locate the alarm box under dash and unplug it as last resort most alarm defaults will let the car start when this is done. hope this helps