Electrical issues, center console backlighting

Hello, I have a petrol 2015 (65) 1.2 DIG-T N-TEC Xtronic

I’m having electrical issues. These have started over the past month. The car is used daily.

Multiple times regular

Back lighting of center console is off. So the main media display still works normally and is visible. But all other lighting is off including the air conditioning digital display is off and all orange lighting off behind all button controls including the auto box gearstick back lighting is off. All functionality of all buttons still works normally but lighting doesn’t.

Sometimes the lights work sometimes they don’t. Sometimes when I turn ignition on they work then when I start car they turn off.

Multiple times regular

Sporadic engine warning light (yellow) - P0594 cruise control servo control circuit / open. This stays on for a day or so then turns off then reappears a few days later.

Both of cruise control and speed limiter systems work fine as normal when this light is on.

One time

Power steering light (yellow) - I believe my model has electric power steering.

This stayed on for a day or so then turned off

I have checked the voltage over battery when switched off (12.58v) and alternator reading (14.28v) when engine on. Halfords did battery health check and confirmed battery fine at 94% health.

The car mechanically runs fine. Can anyone help with what to look into next prior to me having to admit defeat and take car to auto electrician