The instructions provided by TurboTax to this question cannot be implemented because the options do not appear on the screen.
You have to go to Step 2 in the FILE section.
HOW TO CHANGE OR ENTER BANKING INFORMATION FOR REFUND
https://ttlc.intuit.com/turbotax-support/en-us/help-article/tax-refund/change-transferred-direct-deposit-information/L77NCbU6D_US_en_US?uid=m6tuh572
You cannot change banking information while your return is in pending, nor can you change it after the return is accepted. The IRS does not allow it.
You can update your bank account in the FILE section of the return.
If you continue to have an issue Contact the TurboTax Support Phone Number