Replace and Program Control Module or Reprogram Control Module
WARNING: This page is about a different car, the 2021 GMC Sierra 3500 HD and 2021 GMC Sierra 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
This ECU does not require SPS programming or any setup procedures with the scan tool.
Refer to Running Board Description for information on enabling the assist step and the learn procedure.