I am having a similar issue with my recently purchased A119 V3. I bought two of these units, running front and back as separate units. Both with hardwired kits, they both have 12V from the lighter socket circuit and ACC wire connected to a circuit that is powered when the cars ignition is on.
The rear camera works as it should, enters parking mode, records when senses motion and will also permanently store files with a G-Sensor movement.
The front camera is on the exact same settings, yet it will not enter parking mode. It is not the motion sensing, as I've tested it with the car facing a wall. If anything, Id expect the rear to have problems as it can see some trees when parked, but the motion sensitivity seems perfect and it doesnt trigger in light wind.
So whats going on here? Obviously some software issue still with V1.03, as it will not enter parking mode. Due to this, I will need to purchase more expensive larger SD cards, because the front will only store 2 hrs of continuous recording, no good for overnight monitoring.