Thanks...the manual information helped. Popping out the headlight assembly required a little more pressure than I thought, but once it was free, I had easy access to both headlamps. Learned a couple things: first, each headlight (passenger and driver) is individually fused on my buick, so check the fuses first. Secondly, the replaced headlight is significantly brighter than the unreplaced headlight that is original equipment. Its true what they say about headlamps losing power over time, but I'm waiting for warmer weather to change the other one!