If TurboTax is displaying that someone else can claim you on their tax return, and this is not true, it can easily be changed by following the steps below:
When logged into TurboTax Online:
1.) On the left-hand side navigation bar, click My Info
2.) On the line with your name, click Edit
3.) Scroll down to Section 3: A few other things we need to know
4.) Click No for the question Someone else can claim me as a dependent on their tax return