It is reported as a sale.

Yes, if it is fully depreciated, you will have a taxable gain.  "Fully depreciated" means that for tax purposes, your 'purchase price' (Basis) is $0.  So the full amount of the sale is a gain.

Thanks for the response. I've spend so long on the phone with TurboTax today trying to sort out an issue that seems to be an inability of the software to deal with what should be accurate info—entering the original cost and depreciation over the years. It gives me a huge profit since the limited use this year before the sale brings my basis down to next to nothing.

I'm wondering if I can just change the cost and the prior depreciation to 0, leaving the only profit as the sale portion with no depreciation recapture. It feels very uncomfortable but there doesn't seem to be another way to get through this without errors that stop me from being able to file.

Just enter it as a conversion to personal use  and not a sale then you don't need to deal with this any longer. 

If the vehicle had personal use also, the program is not set up to report that and you can NOT report it in the vehicle section.  You would need to either manually do some calculations and enter it in the "Sale of Business Property" section, or go to a tax professional.