How do i replace right front turn signal bulb on 2008 cadillac dts

My automotive database says you have to remove headlamp assembly to replace bulb. To remove headlamp assembly, you need to remove front bumper fascia.
Why in the world should you have to remove front of vehicle just to change a bulb, I don't know? My database is the only info I have to go by. I doubt I can walk you through it, step by step, I can't see anything from here.