By that I mean close the account, stop ALL auto-drafts (And auto-deposits, if any) and take your business to another bank (I recommend a credit union) then they CANNOT rob your account.
Then at your bank DO NOT set up auto-drafts, but instead send them checks each payment, that forces them to create a paper-trail for each payment, and also YOU have a record of payments they cannot "Vanish".
It's a Lot of work, and they'll try hard to deny you closing their account, BUT DESPITE THEIR BULLSH1T THEY CANNOT LEGALY STOP YOU
Hint, drain the account FIRST, or they'll demand you leave some in for them to steal, leave a buck (Or so) and don't look back when you go, Expect them to "Forget" and pretend the auto drafts were NOT stopped, the play that game (According to the hundreds of reports here)
The way to stop that is to call them (Ask for the head Cashier at your branch when you do) a few days BEFORE the next car payment is due, REMIND them No auto-draft, and MAKE them send a statement to your home, and RECORD the call.
They're extremely inept, or deceitful whenever it will profit them and hurt YOU, but never err in YOUR favor.
Forget "Class action" all that means is Lawyers get rich, and You don't