Legally, that would have to happen through legislation so that would be unlikely to happen.
That is unfortunate because car debt, up to a certain amount, should be forgiven. Between stagnant wages, unaffordable housing and decades of underinvestment in mass transit, most Americans need a car to get to work. In a more functioning country, you’d be able to live near work, take good mass transit, make a good wage, not have student debt and not pay much or anything out of pocket for healthcare. Then you could buy a car with cash or not because the mass transit is so good.
Medical debt should be forgiven as a sort of reparations for the American state’s inability to deliver a low or no cost, at point of service healthcare system. Credit card debt is a symptom of stagnant wages, forgive whichever part was used to meet basic living expenses. Parts of people’s mortgage that exceed one third of their income should go away because mortgages over a third of your income are a sign of bad housing policies.
We really need to ask why so many Americans are in so much debt.