So the LF turn signal bulb stopped working. Thought it would be a relatively easy thing to replace. Nope. Have to remove an access panel from the wheel well to even touch the assembly. The headlight bulb can be easily reached, but the turn signal bulb is above the headlight and is somewhat blocked by a frame. Removed a panel from above (in the hood area) that allowed me to at least see what I was up against. Couldn't leverage the bulb base to turn at all. If that had been successful then I could have removed the bulb from the wheel well access. Spent 90 minutes messing with it before I gave up. Ended up taking it to the dealer as the windshield wipers failed. Apparently the link ball socket failed. Could hear the motor running, but the wipers don't move. Fortunately I had received a letter from GM stating they had extended the original warranty on this part to 10 years / 150,000 miles. The good news is the dealer is only charging me $18.99 to replace the bulb. Local shop estimated $60-$190 ($190 if they had to remove the bumper cover) to replace the bulb. Also having them do an oil change service so the total is only $75.94. That's far less than what I was expecting.