The problem is that the key fob is not recognized by the car. I replaced the battery on the key fob but did nothing. I can't open the car with the remote or the button in the handle so I have to use the mechanical key. When I try to turn on the car, sometimes it is like the car doesn't recognize the key, other times says that the key is invalid and after 5 or 10 times it works. At the beginning the problem happened one time a month but now the problem is going worse.

Very annoying and sometimes even embarrassing. Tried more than one Key fob but the car intermittently doesn't sense that the Keyfob is on my person. This even occurs if it's loose inside my car with me.