No, you cannot unmarry an Accessport from a vehicle without having physical access to that specific car. The process requires the Accessport to be connected to the car's OBD-II port to communicate directly with the Engine Control Unit (ECU) and restore the original factory tune. This is a fundamental security feature designed by Cobb Tuning to prevent the unauthorized transfer of tuned ECUs and to protect their intellectual property.
When an Accessport is "married" to a vehicle, it stores a unique identifier from that car's ECU. Unmarrying it involves using the Accessport's menu to select "Uninstall," which guides you through flashing the stock tune back onto the ECU. Only after this process is complete does the Accessport become unlocked for use on another vehicle. If you attempt to use a married Accessport on a different car, it will simply display an error message.
If you no longer have the car—perhaps you sold it or it was totaled—your options are limited. Your first step should always be to contact the new owner and politely explain the situation. They may be willing to cooperate, as having the Accessport still married can sometimes cause issues for them, like preventing a dealership from performing certain updates. If that fails, you must contact Cobb Tuning's support directly. They are the only entity with the ability to reset the device, and this typically requires proof of purchase for both the Accessport and the vehicle, and often involves a fee.
| Scenario | Possibility of Unmarrying | Required Action | Key Consideration |
|---|
| You have the car | Yes, guaranteed. | Use the "Uninstall" function via the OBD-II port. | The car must start and run to complete the process. |
| Sold the car, new owner is cooperative | Yes, possible. | Coordinate a time for the new owner to allow you to unmarry it. | This is the simplest solution if communication is successful. |
| Sold the car, new owner is uncooperative | No, not directly. | You must contact Cobb Tuning support with documentation. | Cobb's intervention is not guaranteed and usually incurs a fee. |
| Car was totaled or stolen | No, not directly. | Contact Cobb Tuning with insurance/police report as proof. | This is often the most compelling case for Cobb to assist. |
