Anyone know what this symbol means?

 

 

Do you have an owners manual? Looks like an anti theft alarm.

 

No, I got the car used and didn't get an owner's manual .This is only happening when I lock my doors. I only have one key and no keyfobs so I usually use the power locks to lock the doors and this is when that symbol shows up .

 

You should buy an owners manual so you know for sure. They usually can be found on ebay.