PKE fob
I bought a fob from the local Chevy dealer in May of '02 (finally got delivery in Sept '02) that has the GM FCC ID # ABO0202T that you quote.
The order clerk told me that GM changed vendors, thus the delay in delivery. In fact, he first indicated it might be a year before they were available.
I had checked with Eckler's and found them out of stock with no expected restock date and kept rechecking with them for availability. The Chevy dealer came up with one first so I stopped looking.
Windy story, but is it possible the other number is for the previous supplier? Anyone with a factory original who can document the number?