My business partner was riding in the passenger seat and he said, " come on now, stop f...ing with me." Within seconds he and I were sweating. The AC was on but the passenger side was blowing air that was the same temp as the coolant. Around 180 would be my guess. I put my hand in front of the vent and it was like grabbing a hot radiator cap. It burnt. The driver side was blowing cold. Dual climate was off, so I turned the passenger side down. No change. Middle of March in south Texas. Major inconvenience to say the least. Was told a flap had gotten stuck in the duct. Didn't cost anything to fix. Never recurred.