Security Alarm goes off every time I open the door
So I have a 2008 Ranger that I bought not too long ago. Everything was working great (like a 2008 should) until one day when I unlocked my doors the alarm went off. I could not shut it off for the longest time and it did it every time. I found the reset switch just under near the brake pedal ad I was able to shut it off. The truck didn't come with remote key fobs so I was just using the key to get it. Right now however I need to lock my doors manually to avoid the alarm going off when I come back to the truck. I'm 21 and almost done university so I can't right now take it in to the garage. Truck is still under warranty maybe it is covered? It is the factory alarm. Please help!
2008 Ranger Sport - 3.0L V6
Mods so far - tinted windows, K&N drop-in, removed side-steps