CHEVROLET TAILGATE OPEN

My Rear Lift Gate Doesn't Open Automatically Anymore. It Stops About 1/3 Of The Way Up And Closes Again. When I Open It Manually I Have To...

Have Not Been Able To Open Tail Gate For Years, Then All Of A Sudden I Can Open It, Then I Cannot, Then I Can. What Is The Problem Here?

I Am Unable To Open The Tail Gate On My Tahoe. When I Use My Keyless Entry To Unlock It Does Not Unlock The Back. There Is No Place To...