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.
30-Minute Learn Procedure
Use this procedure after replacing the following components:
- PassKey(R) III (PK3) keys.
- Theft deterrent control module.
- PCM.
If replacing a theft deterrent control module with an GM SPO Replacement Part, perform the procedure to setup a new theft deterrent control module prior to the 30-minute relearn procedure.
- With a master PassKey(R) III key (Black), Turn ignition on, with engine off.
- Observe the Security telltale, after about 10 minutes, the telltale will turn off.
- Turn ignition off and wait 5 seconds.
- Repeat steps 1 - 3 for 2 more times, for a total of 3 cycles or 30 minutes.
- With a master PassKey(R) III key, start engine. The vehicle has now learned the key transponder information and the PCM has now learned the fuel continue password.
- With a scan tool, clear any DTCs.
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.