When a car is repossessed how long does the credit union have before they can sell it and how long do they have to give you to pay the past due balance?

It depends on the laws in your state. What state are you in?? The previous answer was right on the money. It all depends on the state. For instance, in AZ, there is a 10 day cure period. If you don't get right with the lender in those 10 days, they can sell the vehicle. It also may depend on your contract that you signed. The state may have no cure period but your contract may say that there is a 15 day period. Check your state laws and your finance agreement.