The day after I bought my car the alarm starts going off a little after I lock it. I've had all of the doors open and shut them including the trunk and hood. I just bought a keyless remote, but I totally forgot that you need 2 blade keys to program it so it doesn't work yet. Do you think that this problem will stop with locking the car from the remote. And also if its a bad sensor what kind of cost am I looking at?

 

Did you leave a window open or the sunroof? With the motion sensor on even a slight gust of wind will trigger the alarm.

 

Nope, everythings all sealed up, i've also tried turning that off when i get out and a red triangle lights up by my fog light buttons.

 

Anyone?