Jimbo I think your's is faulty. I have 'turned on' my parking mode and accepted the default sensitivity of Medium. Depending on how hard I shut the door it will switch on as your's does but mine keeps recording after the 2 mins. The 2 min recording started by the 'shock' is locked for future reference (in case it was a 'shunt') but the rest is not (as you would expect). Have you tried updating the firmware? It seems ok so far but I only bought a 16GB SD card and they only save about 30 mins of recording before overwriting. Not a major problem. As usual with these things at my age it takes a little while to fully understand everything and I always print the manual. However the defaults are such that you can just use it 'out of the box' once charged and you have downloaded the latest firmware.