Do I take the whole headlight bracket out to change the bulb on a 2012 Honda Pilot?

No, you do not need to remove the whole headlight bracket to change the bulb on a 2012 Honda Pilot. Instead, you can access the bulb by opening the hood and removing the cover from the back of the headlight assembly. Once the cover is off, you can disconnect the bulb socket, replace the bulb, and reassemble everything.