I have a 2015 Nissan rogue SV and I was sitting in my car blasting the heat outside of work one morning. I turned off my car to go in and when I went outside to go home later that night, the vents were blowing winter air, despite both thermostats being set to 90 degrees. I realized that the two passenger dash vents blow heat, so I just shut off every other vent and warm up my car twice as long in the mornings, but does anyone know what this is and how I can fix it?