Car wont start but the alarm goes on and it never used too

Open the door,when alarm goes off insert key into ignition and alarm should go off and it should start,try that.

Here is a useful link. Go to it, and look for the text, "Disconnect the battery" ... Read the steps to solve your problem!

www.justanswer.com/vw-volkswagon/1y9u8-reset-anti-theft-alarm-system-1995-vw-golf.html

If you don't have the remote then its pretty much useless. I have seen at Pep Boys where they sell replacements for the factory/dealer installed alarms. Or just remove the alarm completely and reconnect everything the way it was.
Without knowing what brand alarm it is a person cannot honestly answer how to disarm it as they all work differently.
If you know a brand and model you may be able to find downloadable instruction on the manufactures web site.

there are many things that can cause stalling a dirty iac (idle air controller) is just 1 of them, clogged fuel filter is another, water in the fuel, clogged air filter, and don't even get me started on alarm systems, especially after market alarms can all cause issues, it could also be a bad mass air flow sensor.i would go least expensive to most expensive, start with cleaning things before replacing them

water is getting into the harness connections for the ECM
use water displacer ( wd-40 or the like ) after a wash or find where the water is affecting and use a spray wax to cover all of the electrical connections

put key in door lock,unlock/hold key over windows will go down....then lock/hold key over,windows will go up,press and hold unlock button on remote for 30 secs,you have just reset the alarm/immobiliser.

i hav same problem chaged battery noticed battery holder was loose so i soldered it very carefully everything works fine xcept remote start alarm just goes off like when you push the panic button not sure what happened dont think i shorted out the circuit board in the fob if engine light is on this car wont start via remote these remotes must b progamed by dealer or pro shop prob using what they call a tech II computer to remote start you hav to press lock button 1st even if car is already locked i figured this out pess and hold lock button then press start alarm dont ring and the car starts.

Well, my mom found a little button underneath the dash board on the drivers side. And I guess its kind of like the reset button. So she pushed it and started the car and it was fine!