In most cases, a court order is required for the repossession of a vehicle, even if the vehicle is not in a driveway. Additionally, the lender or creditor must provide a written notice to the borrower (owner of the vehicle) in advance, stating that they intend to repossess the vehicle and the reasons for the repossession (e.g., default on loan payments). The notice must also specify the date and time of the intended repossession.
In some states, a creditor or lender may be allowed to repossess a vehicle without a court order if the vehicle is in a public place or on public property, such as a street or parking lot. However, this typically requires the lender or creditor to first obtain a repossession order from a law enforcement agency or court.
In any case, without a court order, it would typically not be lawful to repossess a car from a private property, such as a driveway. If someone attempts to repossess your car without a valid court order or in violation of the law, you should immediately contact law enforcement or an attorney to protect your rights.