So, I finally got myself a Gap tool, don't know why I have waited so long!

I wanted to check out the CCF function and as my car (MY 16 HSE) has LDW the hardware for it is installed.

After and the making the change, the options appeared in the menu and the icons appeared in the Speedo and HUD.

However, both showing mph

I have reset the CCF to MPH and then back to K/ph, but still the icons are in MPH.

Note,

The system actually works, and signs are read, but when exceeding the limit, no alert is sounded.