Recapture of Sec 179 and depreciation

Help !  I bought a truck in 1/1985 and used it 60% in my farm business. Claimed Sec. 179 deduction the first year and ACRS depreciation the remaining 3 years. The truck is totally depreciated. In 2018 decided NOT to use it in my business (requires too many repairs).

 

Tried to report it on TurboTax as non-use, but it gave me CONFUSING info, for example what MACRS convention did I use. I used ACRS originally!  What would be the answer? 

 

The truck's info was inputted years ago. How come TurboTax cannot determine that the truck is fully depreciated, etc?  How do I specifically report it on TurboTax and do I have to recapture ALL the Sec. 179 deduction and depreciation?

 

Please reply as soon as you can. Thanks