heat

Anyone have a whistle from their vents on high blower setting with the system set to feet and upper vents? Only happens when on 5 and up blower motor speed. It’s ridiculously loud, but I’ve never had the air on high enough to notice it till this morning. Does on recirculate, outside air...

Am I crazy or is it impossible to have the climate control mode set to defrost and dash vents at the same time. The buttons on the sync display simply wont allow it. There is no issue setting defrost and floor to run simultaneously. Can anyone confirm? Lariat with dual zone climate. I want my...