New Key FOB help!

I lost my #2 key fob for my 02 Envoy and was wondering do I need to get another key fob numbered #2 like the one I lost? I realize this is for memory seat functions and such. Does anybody know about this?

I lost my #2 key fob for my 02 Envoy and was wondering do I need to get another key fob numbered #2 like the one I lost? I realize this is for memory seat functions and such. Does anybody know about this?
GM shop... It may not have #2 but it will work if programed with scan tool. Also it can be programed for driver 1 or driver 2. you Must bring all key fobs to program the new one.

Thanks for the advice...lucky me found the Key Fob in the couch cushions (waaayyy ddep down there!)