WARNING: This page is about a different car, the 2013 RAM 3500 HD and 2013 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Clean Air Tube To Air Cleaner Housing, Make Up Air Hose & Grommets
Courtesy of CHRYSLER GROUP, LLC
Disconnect the make up air hose (3).
Remove clean air tube from air cleaner housing (2).
Pull the air cleaner housing straight upward to disengage it from the grommets (1).