1. Gather Information:
- Remove the radio from the vehicle if it's not already out.
- Locate the serial number sticker on the radio. It's usually on the side or back of the radio and starts with a "C." Note down this serial number.
2. Contact the Dealership:
- Contact a GM dealership or authorized service center.
- Provide them with the serial number and relevant vehicle information (year, make, model).
- They may provide you with an unlock code or instructions on how to unlock the radio.
- Search for a reputable third-party online service that offers GM radio unlocking.
- Enter the serial number and relevant information on their website.
- Pay the unlock fee if applicable.
- Follow their instructions to receive and enter the unlock code.
- Search online for a suitable radio unlock tool or device that's compatible with GM/Delphi radios.
- Follow the instructions provided by the unlock tool manufacturer.
- The tool may connect to your radio via a cable or OBD-II port and potentially provide an unlock code or automated unlock functionality.
- Please ensure you're dealing with a reputable source or website if using a third-party unlock service or radio unlock tool, as some may be untrustworthy or provide malware.
- If the radio is not unlocking despite the correct code, there may be a different issue or problem with the radio itself, and you may need to consult a qualified electronics repair professional.
