1998 GMC 2500 Pickup Q&A

1998 GMC 2500 Pickup Question: How do I find out which Passlock system I have 0n a 1998 2500 GMC MC

I have recently changed the cyl&key and the passlock sensor ass.,and will recognize the key, but after a few key cycles, the security light will begin flashing again. It will go out after learn procedure. -
This question hasn't been answered yet.
Answer It or share it on , or Email to get an answer.