Yes, it can. If you file a bankruptcy under chapter 13, you may be able to lower your vehicle payments depending on several factors. The interest rate, the balance, the amount of time you have had the vehicle, any other debt attached to the vehicle, the maturity date, and the value of the vehicle. It is very important to note that if there are co debtors that are not filing jointly with you, the co debtor will not enjoy the benefit of the bankruptcy. Not everyone can lower their car payments in bankruptcy, and not all the factors apply to everyone. There may be other factors to consider as well, this is just a general answer, as every single case is different. Speak with a bankruptcy attorney if you are interested in filing a chapter 13 case.