Vehicle impoundment is when a vehicle is seized and transported to an impound yard where it is stored until legally claimed
The impound yard keeps your vehicle behind a locked gate, and the property impounded in the yard is generally under tight security. If you do not take care of the underlying reason for the impoundment, they can hold your car indefinitely while you continue to incur expensive impound charges.
At some point, according to the laws in your particular state, the impound yard will be able to sell your vehicle at auction and, with the proceeds received from the sale, pay your impound fees and any other government liens that have been levied against your car.