How To Replace The Headlight On A 2006 Cadillac STS
Yes you have to remove the bumper cover to replace the headlight,It's not that difficult when you follow my advice.
2003-2007 CTS Headlight Change No bumper Removal
How to change the headlight bulbs without removing the front bumper on a 2005 Cadillac cts. Correction you need to turn your bulbs counter-clockwise to remove the bulb from the headlamps.
Headlight Replacement - 2006 Cadillac STS
This is how to change the headlight in a 2006 era CADILLAC STS..
Cadillac STS headlight bulb replacement
theres no easy way around this. you have to take the bumper cover off to change the headlight bulb in a 2006 cadillac STS