The problem with the manual, at least as far as display brightness is concerned, is that it doesn't tell you that you need to have the lights switched on to adjust the night-time setting or that there are two seperate settings for light-on and lights-off.mikeb wrote: ↑Sat Sep 28, 2019 1:33 pm I hope this will help C5 Aircross owners;
http://service.citroen.com/ACddb/modele ... _en-GB.pdf
full handbook with all the usual details.....
It took me a while to find the answer.