Once you checkout and payment is processed, we create a unique Customer Account and your part enters the programming department. As soon as our highly trained technicians complete the project your part is packaged and shipped using your desired shipping method. Once you receive your new control module, you can use the included prepaid shipping label to send us your old module. When we receive your old part your 12 Month Warranty begins. If you have any questions or concerns do not hesitate to contact our customer service department.