Hello. I'm driving 2011 Astra j with bi-xenon lights and auto control of the lights. Sometimes even in bright sunny day the lights still remains on and the HUD display stays in night mode. Have found that most of the J's have this issue and didnt bother so much. But lately the things became stranger. The HUD display switches to day mode but the lights remain on. Can this be a faulty sensor? Any help will be highly appreciated.