Does anyone know WHERE to put in the vehicle 179 deduction for a business in Turbo Tax self-employed? My vehicle qualifies.

I purchased a vehicle in 2017 specifically for business. The vehicle qualifies, it is over 6000 pounds and I use it 50% for business. The 179 deduction should apply. I just can't figure out WHERE in Turbo Tax Self-employed I put it. If anyone can please help..