I have an issue similar to another post in this section, it has been happened intermittently during the last couple of months and only seems to be a problem after short journeys, a couple miles or 10 minute drive. When leaving the car and pressing the lock on the remote the car beeps and refuses to lock. I have to wait 30 seconds try again then it will lock. Frustrating as have driven to the dealer a couple of times and can't replicate the problem as journey is 15 miles.