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:
- Install the 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 A11 Radio - Programming and follow the on-screen instructions.
- When programming is complete, access the Service Programming System (SPS) and follow the on-screen instructions.
- Connect a USB drive to the computer.NOTE:
If using a pre-configured USB drive supplied by General Motors, proceed to step 8.
- On the SPS Supported Controllers screen, select A11 Radio - USB Copy and follow the on-screen instructions.NOTE:
- If there are no files available for USB transfer via SPS, proceed to step 14.
- All existing files on the USB drive will be erased when the new files are copied.
- Upon completion of the file transfer, remove the USB drive from the computer.
- Ignition ON, radio ON.
- Connect the USB drive to the USB port in the vehicle.
- Using the radio controls, select the following: Config>Radio Settings>Software Versions Menu>Update Radio Software. Follow the infotainment display on-screen instructions and select Update when prompted. Programming will take several minutes.
- When programming is complete, remove the USB device from the vehicle USB port.
- Access the Service Programming System (SPS) and follow the on-screen instructions.
- On the SPS Supported Controllers screen, select A11 Radio - Programming and follow the on-screen instructions.
- At the end of programming, choose the "Clear DTCs" function on the SPS screen.
Use the Manual With the Right Hardware
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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.
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