My 2011 Insignia (Elite Cdti auto hatchback) has started doing it again. It did it before, then corrected itself, now it's back. It starts with a brake light bulb warning, followed by an indicators warning. The indicators stop working and the green arrow on the display flashes unusually quickly. The heater stops issuing heat and the central locking becomes inactive. No click or clonk or flashing indicator when either fob or internal buttons are pressed, That's it I think although there might be other things that don't work, that I haven't yet discovered. Has anyone ever had something similar. I guess it's going to require a diagnostic session. The fob won't lock or unlock the doors but it will turn the internal light on, fold and unfold the mirrors and open/close the windows.

Sounds very much like a fault Body Control Module (BCM) but check all power and earth leads on the vehicle first