You need to open a return or start one if you haven’t already. Then you will see the “Account Settings” option at the bottom of the left side menu.

Alternatively, you can sign into the TurboTax Account Manager. Choose “Sign in & security” from the left side menu. There you can change your security options, like your password.

thank you.  I finally figured that out.  This option should be available as soon as you sign in