How do I handle converting my car to 100% personal use after July 31 when I only recorded mileage and took no depreciation? Car was completely paid for when I started.

I did not sell the car to the business, I just used it to get to my students. I think I already said I did not depreciate it. I actually received it as an inheritance as part of my deceased father's estate in 2013, and started the business in 2014. The software is leading me to think the IRS wants to recapture part of the depreciation and I do not know how to get around that.