Do you have to pay the whole vehicle off if it is repossessed?
Once a car has been repossessed, you as the owner of the vehicle have the obligation to repay any amount still owed on the loan. Once a car is repossessed, it is often sold in a repossessed cars auction by the finance company. The amount which the car was sold for will be deducted from the total loan amount and then the difference will be owed by yourself. So yes you would have to pay the whole vehicle off if it was repossessed.
After you pay off a vehicle when it was repossessed can a lender refuse to return it unless you pay off other unpaid debts that you have with the same lender?
Yes, it can be repossessed. If you owe money on a vehicle and do not have a clear title of the car - In reality, this car is not yours until the debt is paid. The car is collateral until your pay the loan off. If the car was repossessed, the personal contents like the car seat must be given back to you.