I replaced my bulb awhile back. As I recall, I paid about $125 for the bulb (GMDirectParts). Then, I paid the dealership to install it. I think it may have been around $75. Being, I did not want to void the 1 year warranty through GM. Next time, I may try it myself.
My Acadia has a similar setup. I bought the bulb at Wal-Mart ($30 I think), and was able to install it. I removed the wheel well. The dealership stated that the process included removing the bumper. I guess backyard mechanics are being put out of a job.
My Acadia has a similar setup. I bought the bulb at Wal-Mart ($30 I think), and was able to install it. I removed the wheel well. The dealership stated that the process included removing the bumper. I guess backyard mechanics are being put out of a job.