ambient

I have an 01 park ave ultra. Hud and headlights are always in night mode when driving. In park with the car running, I can turn it back to daytime mode by moving twilight sentinel slider on dash to off, but it goes back to night mode once I shift out of park. Is this the twilight sensor? It...

Let me start by saying, the freon is full (tried to fill it), the compressor does work, etc. All indications lead me to believe it (whatever "it" is) just needs some sort of reset. I'm just hoping someone can point me in the right direction. Thanks in advance. I recently bought a 2017 Buick...