The Garmin 1000 Automatic Flight Control System (AFCS) panel in the Cirrus SR22 has no back-lighting when the rest of the instrument panels are illuminated at night.
This makes it almost impossible to do night IFR flights as it not easy to quickly find the AP, FD, HDG, NAV, etc buttons. The entire set of buttons on the AFCS panel are affected. Every other panel in the cockpit is lit OK. I’m sure this is a very simple fix. This issue existed both before and after the UK World Update.
I haven’t checked any other G1000 equipped aircraft so I don’t know whether the same problem exists in any of other ones.