Replace and Program ECU or Reprogram ECU
WARNING: This page is about a different car, the 2021 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.
To program a replacement or an existing ECU, perform the following procedure:
NOTE:
- Due to continuous improvements, the on screen selections may vary from instructions below.
- It is recommended to program both the left and right (if programmable) when a programming event is required.
- Some systems only have one programmable Side Object Sensor Module.
- Access the Service Programming System (SPS) and follow the on-screen instructions.
- On the SPS Supported Controllers screen, select B218L/R Side Object Sensor Module or B218R Right Side Object Sensor Module or B218L Left Side Object Detection.
- On the SPS Select Function / Sequence screen, select Sequential Programming or Programming
- Clear DTCs.