If I remember correctly, here's how to do it:
Put the parking brake on and turn the car into ACC mode.
Move the gearshift lever (push on the brake) to the manual position; Gently pull the collar down at the base of the gearshift knob to expose a little Torx screw. Take the screw almost all of the way out, and pull the gearshift knob up and off. Don't worry if the gearshift knob falls apart- it's simple to put back together. That collar is about all that holds it together.
Now pull the sides of the metal console cover off by GENTLY lifting straight up towards the sky. Start at the armrest and work your way up to the HVAC controls to avoid screwing up that part. It is held in by 6 (I think) clips. BE SURE THE CLIPS REMOVE WITH THE COVER! If they don't, pull them out before replacing anything or you'll damage the plastic holes that they go in to! The holes that accept the clips aren't very robust.
The cover (obviously) contains the gearshift indicator and cupholders. You'll have to remove them and transfer them to the new bezel, but that's no big deal. Be sure your wiring is routed properly (you'll see where it attaches to the bottom of the bezel when you lift it up) or you'll have trouble with the new cover fitting as well as the operation of the cupholder.
It may be obvious, but, when replacing the new cover, be VERY GENTLE! It will dent EASILY!!!!!!!
I bought the parts from a GM dealer online- it wa MUCH cheaper than my local dealer. Let me know if you need more assistance or have any questions, and good luck! I know how annoying those little defects can be- after all, I just took off my door panel to clean the speaker cover on the passenger's side door! HELP! I'm obsessed with my XLR!!!!!!! But aren't we all? :flag