Section 179 deduction for business truck

In August of 2024 I purchased a 2021 truck with a gross weight over 6000 lbs. and a bed over 6.5 long.  Turbotax isn't prompting me with a way to enter this as a section 179 deductible asset.  I usually use the mileage deduction, but read that this isn't allowed so I tried using the actual expense method instead.  Still no luck.  What am I missing here?