In TurboTax Online, click the pencil to the right of the Vehicle that was marked as sold.
Remove the date of sale and uncheck I stopped using this vehicle.
However, you should cycle through the vehicle questions to make sure that all references to the vehicle sale have been removed.
At the screen Sales price, remove the Sales price and Expense of Sale amounts.

I immediately Review to make sure that all traces of the vehicle sale have been removed from the software.
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