I just purchased a 2020 Sierra Denali and I have a concern that I have noticed. The two buttons, (+/-) that adjust the brightness of the dash gauges and navigation screen, do not seem to work during the day time. When I try to adjust the dash brightness around dusk it will not work until the headlights come on automatically, but also even when I manually turn on the headlights I cannot change the brightness of the instrument panel. Is this a normal setting or is there something wrong? I have been told that some newer vehicles have automated brightness displays that will not let you change it based on the time of day, so I am hoping that is not the case.