GMC AIR CONDITIONER NO AIR

My 2011 Acadia Is Not Blowing Any Heat Or A/c In The Rear, The Front Works Fine What Could This Be?

Recently, When I Try To Turn The A/c Selector To The Dash Or "face Only" Position - There Is No Air Flow Until I Turn The Compressor "off...

When Set To Off, Their Is A Noise(clicking, Whining) Sound. There Have Been Times When I Don't Have The Unit On And It Still Makes A...

I Noticed The Vents In The Back Seat Weren't Blowing As Cold And Little By Little It Stopped Being Cold And Not Too Soon After That The...

When I Turn The A/c On, I Can Hear The Rear A/c Blowing But Nothing Comes Out Of The Front. Whereas I Used To Hear The Front Blowing Air...

So, It Seems That It Sometimes Is Cold Air Mixed With Hot Air Blowing From Fee, Defrosters, But Not The Face Vents And It Switches To...

This Is Intermittent Issue When I Am Switch Off The A/c And Engine And Then Locks The Car By Remote Keys In Parking And Come Back After 1 Or...