Remote lock and arm acting up
 

Some times when I press the button on the remote the horn will make the 1 beep but nothing will happen. If I hit the button again it does 1 beep and the system arms and the door locks. I think its the cold. Its not a very common prob, maybe once a few days. Today it took like 3-4 tries to get it to lock. But today was a much colder day. It was below zero with wind chills of -20 or below. I don't think the security module is failing as its not going off randomly like I heard it does when its dying. The car is just acting funny in this severe cold. None of this started happening until temps started droping below 20.

Any comments on this? Is something failing or is just the cold?