I bought a 2003 V-70 quite a few year ago that only opened and locked through the key fob. The key fit in the door lock but did not turn. This past winter, my daughter, who has driven this vehicle to college and to her post graduation job for the past 4 years, reported that she was having trouble with the key-less entry system. She replaced the battery in the fob and that worked for about a month but the system is on the fritz again. We switched vehicles for the time being, and now I have to get the lock to work one way or the other (preferably both). I am not really sure just where to start with the key-less system. I have noticed that the red light on top of the dash does not illuminate, but an not sure if it blinks only when the vehicle is locked.Any thought about where to start with this system?