Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Replace and Program Control Module
To program a replacement control module, perform the following procedure:
The vehicle must remain in PARK and the driver's door closed during the programming procedure.
- Access the Service Programming System (SPS) and follow the on-screen instructions.
- On the SPS Supported Controllers screen, select A11 Radio - Programming and then follow the on-screen instructions. Allow programming to complete before proceeding to the next step.
- If equipped with Navigation and an SD Card, the SD card must be installed and functioning correctly for USB programming to be successful.
- If using a pre-configured USB drive supplied by General Motors, proceed to step 7.
- USB programming may not be required, depending on the radio RPO or current software level, or the release of updates. If USB files for the application are not available via SPS, or have not been received from General Motors in another manner, the USB process will not need to be performed unless instructed otherwise in a service document or publication.
- Connect a USB drive to the computer.
- On the SPS Supported Controllers screen, select A11 Radio - USB Copy/ USB File Transfer.NOTE:
- If USB programming is unavailable, or if the selected software description is the following proceed to step 10: STOP. If you are seeing this text, the controller already has the latest software available. If you try to proceed further, SPS will generate an error. .
- Software currently loaded on the USB Drive will be verified and if files are incorrect they will be deleted and correct files will be loaded. If files residing on the USB Drive are correct for the vehicle being serviced, the Techline terminal will not delete those files and allow the drive to be re-used.
- Upon completion of the file transfer, remove the USB drive from the computer.
- Ignition ON, infotainment system ON.
- Connect the USB drive to the USB port in the vehicle.
- The infotainment system will recognize that update files are available. Follow the infotainment display on-screen instructions and select Update when prompted. Programming will take several minutes.
The Radio will not allow the installation of the same software version via USB. If the same software is detected the installation process will not start.
Once the update is initiated, there is no need to monitor the progress.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.