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.
Service Programming System Remote Procedure (Except Corvette): Notes
The Remote Service Programming System (SPS) method is a 3-step process that involves the following procedures:
- Connecting the Tech 2 to the vehicle and obtaining the information from the module.
- Connecting the Tech 2 to the terminal and downloading a new calibration file from the terminal into the Tech 2 memory.
- Reconnecting the Tech 2 to the vehicle and uploading the new calibration file into the module.
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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