OK. I have an 05 coupe and for some reason all of the sudden my alarm is giving me trouble. When I first get in my car the fobs work fine and I can even use the remote start and it works. if I drive the car to the store or anywhere just about and get out, shut it off and go in when I come back out my fobs wont unlock the door and when I use the key to unlock the door the alarm just stays going off. It has happens to me every time I drive the car now.. Driving down the road with the alarm going off definitely gets you some strange looks like you stole your own car lol. I have changed the batteries in the fobs just to make sure that that wasn't my issue. It happens regardless which remote I am using. I was at the dealer getting it checked out and it happened there. the tech used the key in the door and turned a few times each way to turn the alarm off but soon as he opened the door again it started going off again. I have no idea what keeps causing this or how to fix it. Any and all help is MUCH APPRECIATED!!!

 

Who installed it.

 

It was already on the car when I bought it. I assumed it was the factory alarm and remote start. I have to hit the lock button 3times for the remote start to start the car and that works until I take the car for a drive then the remote no longer works.