Where is Vehicle basis located on the tax form and how can I update the amount?

[CatinaT1]

The vehicle basis will not appear on any form. The vehicle basis is generally the amount you paid for the vehicle plus any fees, the cost of registration, and taxes.

For what purpose are you entering this information? Are you self-employed and have a business use vehicle? I'm including an article for more information: Business Use of Vehicles - TurboTax Tax Tips & Videos - Intuit