Thank you for your interest in the product. Consumables such as batteries are to be covered by the buyer. While we check things like button feel and lamp illumination, we cannot guarantee complete functionality. We cannot respond to questions or complaints regarding the reset method. The vehicle name in the title may differ from the actual vehicle. We cannot accept complaints such as "It didn't work with the listed vehicle model." Please confirm before purchasing. Used items are non-refundable and non-returnable. Due to being a used item, we cannot guarantee perfect operation. If we have the same type or model in stock, we may be able to provide a replacement. Please contact us via message. If you are sensitive to imperfections or seek perfection, please purchase a new item from a dealer. Please purchase after understanding the above conditions.