Replace and Program Control Module or Reprogram Control Module

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 control module, perform the following procedure:

Ignition/Vehicle OFF, keep the key inside the vehicle.
Install EL-49642 SPS Programming Support Tool
Access the Service Programming System (SPS) and follow the on-screen instructions.
On the SPS Supported Controllers screen, select K179 Automated Driving Mapping Module - Programming and follow the on-screen instructions.

NOTE:

The Serial Data Authentication Configuration button is located in the following location:

To the left side of the SPS Supported Controllers screen in the TIS system.
In the lower right corner of the SPS Supported Controllers screen in the Techline Connect system.

On the SPS Supported Controllers screen, select Serial Data Authentication Configuration button and follow the on-screen instructions.
Ignition/Vehicle OFF, all access doors closed, all vehicle systems OFF, and all keys at least 3 m (9.8 ft) away from vehicle. Disconnect the scan tool from the vehicle. It may take up to 10 min for all vehicle systems to power down.
Ignition ON/Vehicle In Service Mode.
Using a scan tool, clear DTCs.