rtk7

I saw something in the manual about it? Well i havent driven my car as much since i work a lot and i car pool. But my car wouldn't start up right away the other day and the belt is sqeaking when i turn the wheel just a little bit on cold start. The belt all the way at the bottom by the passenger wheel that belt is really loose was wondering if i could tighten it up before i got it changed to fix the problem? any input would be nice.