So my FR-V has started playing up when I come to unlock it. The car sounds like it unlocks then immediately locks again. The lights flash several times. Even trying the key hole on the drivers door doesn't work. After a minute or so, the car eventually lets me in. Sometimes it will then lock itself once I'm inside. Very, very strange. The kids have been messing with the locks in the rear recently but I don't know if this is the cause. Any bright ideas as to the cause would be very welcome. I'm dreading it finally refusing to let me in at all once I'm miles from home and stood in a dark car park in the pouring rain. P.s. the spare key doesn't help.