You can install our site as a web app on your iOS device by utilizing the Add to Home Screen feature in Safari. Please see this thread for more details on this.
Note: This feature may not be available in some browsers.
Also just updatep tesla app from iphone and then vent feature totally disappaered! So I dont know how that can be happen.They added defrost option instead of Vent.
I received my M3RWD last week at Bay Area , I visited sunnyvale and santa clara service centers yesterday for the same venting issue but noone can figure out for the solution yet !They pushed out for Oct 26 service appointment!