How long does it take for the bank to write off a vehicle if they are unable repossess it?

There is no set amount of time that it takes for a bank to write off a vehicle if they are unable to repossess it. The timeline for this process can vary depending on the specific circumstances of the case, such as the laws and regulations in the relevant jurisdiction, the policies and procedures of the bank, and the value of the vehicle in question. In some cases, a bank may attempt to repossess a vehicle multiple times before ultimately writing it off as a loss. It's important to consult with the relevant bank or financial institution to understand their specific policies and procedures for dealing with vehicles that cannot be repossessed.