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GM Bob
GM Bob, ASE Certified Technician
Category: Chevy
Satisfied Customers: 1018
Experience:  30 plus years. experience as GM technician, ASE Master Technician and GM Certified.
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Chevrolet Uplander: Neal

Customer Question

Hi Neal
Submitted: 1 year ago.
Category: Chevy
Expert:  GM Bob replied 1 year ago.
Hello my name is ***** ***** for the wait.
Can you post your VIN# ***** to know if you ave option code Z49
Here is the 30 min relearn. If you have Z49 it will not work.
Use this procedure after replacing the following components:
•The PASS-Key III (PK3) keys
•The BCM
•The PCM
Important: This procedure is not available on vehicles equipped with option code (Z49).
If replacing a BCM with an GM SPO replacement part, perform the procedure to setup a new BCM prior to the 30-Minute Relearn Procedure.
1. With a master PASS-Key III key, rotate the ignition to the CRANK position.
2. Observe the SECURITY telltale. After approximately 10 minutes, the telltale will turn OFF.
3. Turn OFF the ignition, and wait 5 seconds.
4. Repeat steps 1–3 two more times for a total of 3 cycles or 30 minutes.
Important: The vehicle learns the key transponder information and/or passwords on the ignition switch transition from OFF to CRANK. You must turn the ignition OFF before attempting to start the vehicle.
5. With a master PASS-Key III key, start the vehicle. The vehicle has now learned the key transponder information and the PCM has now learned the fuel continue password.
6. With a scan tool, clear any DTCs.