Hi I am new to this site. I just recently bought my first Mustang and I gotta say, i love it. Such a great car to own. It is a 2008 V6 and its pretty nice.
Well i haven't had any issues with it until today, I was driving when I hear the car lock and unlock twice in a row. I though nothing of it, then i notice that the alarm was armed for some reason. I tapped the dashboard and the alarm went off while i was driving. i had to press the unlock button on my remote to stop it.
I got home and forgot about it. I decided to go to the store, i turn on the car, put it in drive, then i hear the auto locks work then the beep of when you lock the car with the keyless remote, then a blinking blue light under my steering wheel,
well i tapped the dashboard and the alarm went off, the only way to turn it off was by hitting the unlock button on the keyless remote.
so i park the car turn it off, turn it on put it on drive, auto locks go off and the alarm once again is active.
ive been searching around but havent found answers so i decided to deactive the autolock which seems to do the trick, i drove and no alarm went off.
Does anyone know what casues this problem with the auto lock?
the blinking light that comes on, underneath it theres a button, if that helps for something. Thanks for the help!

 

I honestly would start with checking the wiring of the alarm. Wires may be broken or just crossed.

 

Being that you hit the dash and the alarm goes off tells me more than likely you have a short in the wiring.