If you are on a joint-loan for a car that is being paid by someone else late can you reverse any adverse actions to your credit score by showing 12 months of bank statements to show you didnt own it?

If you are on a joint-loan for a car that is being paid by someone else late can you reverse any adverse actions to your credit score by showing 12 months of bank statements to show you didnt own it?
And by "own it" I mean that the car is not in your possession.