Hi,
This is a coding issue for sure but struggling to know the correct coding, wonder if anyone had similar.
Put something in initially via ODB11 I bought a few years ago but some of the coding is a bit gray so got some VCDS help....

Seems like with the below added to 5F - it does finally show the parking as I've seen correctly on other units! Beeps and all.

Its just an initial message Optical Parking System (OPS) currently not available or similar, you press ok and it just comes up with parking lines anyway and they work - show proximity to objects.
So 99% there but would be nice if I knew which bit was the answer to 100% success removing that error?
Pretty sure sensors and all work because it was beeping before attempting to resolve the visual stuff plus have seen logging and its showing values on each sensor confirming they work. It also confirms the system picks up reverse gear status etc.

From https://forums.ross-tech.com/index.php?threads/32203/ (For 5F coding):-
"VW Up 2012 - RVC and PDC retrofit - nothing on the display

Adaptions are not good I think:

ENG122227-ENG117496-Car_Function_Adaptations_Gen2-menu_display_pdc,activated ,60

ENG122227-ENG117500-Car_Function_Adaptations_Gen2-menu_display_pdc_after_disclaimer,activated ,60 - set to NOT activated

ENG122227-ENG117497-Car_Function_Adaptations_Gen2-menu_display_pdc_clamp_15_off,activated ,60 - set to NOT activated

ENG122227-ENG117498-Car_Function_Adaptations_Gen2-menu_display_pdc_over_threshold_high,activated ,60

ENG122227-ENG117499-Car_Function_Adaptations_Gen2-menu_display_pdc_standstill,activated ,60 - set to NOT activated

ENG122229-ENG117710-Car_Function_List_BAP_Gen2-parking_assist_0x0A,not activated ,64 - set to ACTIVATED

ENG122229-ENG117711-Car_Function_List_BAP_Gen2-parking_assist_0x0A_msg_bus,not activated ,64 - set Terminal 15

Test reset radio and let us know!"

the supply voltage of the control unit is KL15 or KL30?

I'm not sure....but the OPS issue seems to have resolved itself overnight!
I think I tried a reset of info system but on stop/start from key since today no more alerts - seems all good.
Thank you