Thanks very much Nigel, cheers, MarkOnly in parking mode, and then only if sitting in the sun over midday on a hot day such as we have had recently. Then it may shut down to protect itself. They never have an issue while driving, and never get damaged by heat. Parking mode now records at FHD resolution to keep the heat down, you only get 4K while driving, but that is good for long parking mode record times anyway.