I have 2 key fob/remote things that came with my 03 Z71 Sub. They are marked on the back 1 and 2 (looks like from the factory). I use #1 set of keys and when I get in it says Driver 1 on the dash display and has all my settings etc. In the past 4 months, I have put a new battery in the #1 key fob twice. I assumed the battery was low since it wasn't unlocking the doors and I had to open them with the key. It works fiine for locking but not unlocking. SO...where do I get a new #1 key fob? I have heard they are expensive on from the dealer.

 

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