In general, a lender can come onto a borrower's property to repossess a vehicle only if they have a valid court order or if the borrower has specifically authorized them to do so in writing. However, the specific laws regarding repossession can vary depending on the state and the terms of the loan agreement.
Therefore, it is always best to consult with a lawyer to get the most up-to-date and accurate information about your rights and options in the event of a repossession.