Owners/service Manual problems of the 2014 GMC Sierra 1500

The large 8" intellilink radio screen in this truck has separate brightness control from the rest of the dash lights, including the instrument panel. Due to it's size and colored background, the lcd radio screen is much brighter than the rest of the interior lights. The fact that the system has no night scheme, meaning it doesn't shift to a mostly black background at night makes this problem even worse. While it is possible to lower the brightness using a dash-mounted dimmer switch, the dimmer must be lowered to minimum in order to get the radio screen to be a comfortable brightness level for night driving. At this point, the instrument cluster lights are so dim as to be extremely difficult to see and as a result require much more time and effort to read speed information. The only way to completely turn off the radio screen is to go through several menus into settings and manually turn off the screen. Not only is this a dangerous distraction while driving but if any vehicle setting such as radio volume, or hvac controls are adjusted, the screen automatically turns back on and the process must be repeated. I have contacted gm several times about this issue due to its distracting nature when driving at night and have been told repeatedly that the system is "operating as designed. " I feel this is a safety issue since the bright light in the cab ruins night vision while also distracting the driver's eyes from the road. My recommendation is for a software update for the intellilink/radio system to be designed to add a brightness setting in the system menu to allow driver's to set the radio screen brightness independently of the instrument cluster lights and to also program a "night mode" color scheme that would shift from the blue illuminated background used in the daytime to something that is mostly black.