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.
10-Minute Relearn Procedure
Use this procedure after replacing the following components:
- The passkey III (PK3) keys
- The theft deterrent control module
- The PCM, see Important above
Important: If replacing a theft deterrent control module with a GM SPO Replacement Part, perform the procedure to setup a new theft deterrent control module prior to the 10-minute relearn procedure.
- Connect a scan tool to the vehicle.
- Turn ON the ignition, with the engine OFF.
- Insure that all power consuming devices are turned OFF on the vehicle.
- With a scan tool, select Request Info. under Service Programming System and follow the scan tool on-screen instructions.
- Disconnect the scan tool from the vehicle and connect the scan tool to a Techline Terminal with the current Service Programming System (SPS) software.
- On the Techline Terminal, select Service Programming System and follow the Techline Terminal on-screen instructions.
- Disconnect the scan tool from the Techline Terminal and reconnect the scan tool to the vehicle.
- With a master passkey III key, turn ON the ignition with the engine OFF.
- With a scan tool, select Program ECU under Service Programming System.
- At this point the scan tool must remain connected for the duration of the 10-minute relearn procedure.
Important: On some vehicles the SECURITY telltale maybe illuminated on steady for the duration of the 10-minute relearn procedure.
- Observe the scan tool, after approximately 10 minutes the scan tool will display "Programming Successful, Turn OFF Ignition". The vehicle is now ready to relearn the key information and/or the passwords on the next ignition switch transition from OFF to ON.
- Turn OFF the ignition and wait 5 seconds.
- With a master Passkey III key, start the vehicle. The theft deterrent control module has now learned the key transponder information and the PCM has now learned the fuel continue password.
Important: Perform this step ONLY on vehicles with EXPORT configured theft deterrent control modules.
- Turn OFF the ignition and wait 15 seconds minimum.
Important: Perform this step ONLY on vehicles with EXPORT configured theft deterrent control modules.
- With a second master passkey III key, start the vehicle. The theft deterrent control module has now learned the second master Passkey III key transponder information
- With a scan tool, clear any DTCs.
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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.