Air only comes out dashboard vents no defrost or floor

Hello, Dave here, contributing to RepairPal and providing expert advice since 2010. No, unfortunately, the mode door cannot be manually moved without disassembly and access. And, if you move it, it could move back when commanded by the climate control system -- even if you don't know it's going to do that. You're going to need to diagnose and resolve the concern properly - once and for all. Reach out to a shop near you -- https://repairpal.com/auto-repair-near-me Click the link or call us at 877-913-1554. We'll gladly find you a certified RepairPal shop in your area.