When doing replacement or upgrading on 2006 – 2011 Buick Lucerne, the bulb size guide is necessary for you to take the reference.
Jump to corresponding car model with the catalog bellow.

Low Beam Headlight 2006 – 2011 9006
High Beam Headlight 2006 – 2011 9005
Front Fog Light 2006 – 2011 H8/H11/H16
Back Up Light 2006 – 2011 921
Brake 2006 – 2011 3057
Daytime Running Light 2006 – 2011 9006
Front Side Marker 2006 – 2011 194
Front Turn Signal 2006 – 2011 4157
License Plate 2006 – 2011 194
Parking Light 2006 – 2011 4157
Rear Side Marker 2006 – 2011 194
Rear Turn Signal 2006 – 2011 3057
Glove Box 2006 – 2011 194
Inner Tail Light 2006 – 2011 194
Outer Tail Light 2006 – 2011 3057
Trunk 2006 – 2011 211-2