How do you remove 2003 Pontiac aztek driver side airbag?

Disconnect battery, go for coffee or have a cigarette or some other acceptable activity for 5 minutes.

Check to see if the battery is disconnected! (if the air bag goes off it could kill you so this is important!)

There are screws on the back of the steering wheel that may be a little difficult to get to but turning the wheel will do it.