Any chance you have dual zone HVAC and the passenger side was set at or almost all the way to full cold?During the summer, i usually have the temp set at 70 to 71 with the blower at 2 bars when I drive in a tshirt and shorts.
it was cold for the first time in NY (30s) and I set the temp to 72 but the vents were blowing cold air? it wasnt until 75 did I feel some warmth in the air. is this normal? I had a long sleeve shirt on with no jacket when I was driving and 72 was too cold for comfort. I usually complain about being too hot.
thx
K