Reprogram Control Module (ECU)

WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.

To program an existing K71 Transmission Control Module, perform the following procedure:

Ignition/Vehicle - Off

NOTE:

Begin with the vehicle in vehicle OFF power mode. The Service Programming System will power mode the vehicle.

Access the Service Programming System (SPS) and follow the on-screen instructions.
On the SPS Supported Controllers screen select K71 Transmission Control Module - Programming, and follow the on screen instructions.