I have a 2018 sedan and recently noticed that the drivers side vents are blowing warm air while the passenger side is ice cold. It’s driving me crazy especially with this weather. I tried playing with the dual zone settings but that didn’t help at all. Been searching online to understand if this is a complex electrical problem or something simpler and found a detailed guide on fixing automotive climate control issues that explained it could be a faulty blend door actuator. That sounds like it might be beyond my DIY skills but at least I have a better idea of what to tell the mechanic instead of just sounding clueless. Anyone dealt with this repair before and know roughly what it costs?