You know, this is all you had to do, instead of going to all kinds of threads and posting this question. (just a fyi, no one will answer you if keep doing that)
And if your going to mod your tahoe, search stuff on here, alot of questions have been answered and are current ones. (im not one to say search it, but i just did mine, so i know its on here, but its just like talking to someone, dont interrupt them, make your own)
On Topic
Emblem comes off easy, take off grille, or just pull the emblem, push tab on both sides of it, just push them in, or one side, and it pops off.
(if you havent got it already)
(dont take this in a bad way, no means at all)