For the 2009 Buick Lucerne, the supplied fitment data lists a 9005 bulb for the high beam. No low-beam bulb is provided, so confirm the existing low-beam bulb or vehicle-specific application before ordering. Fog-light fitment includes either an H11 LED or H16 LED; verify which option matches your lamp assembly.
Other useful exterior bulb details include:
- Front turn signal and parking light: 4157NA
- Front and rear side markers: 194NA
- Reverse light: 921
- Brake light: 3057R
- Rear turn signal: 3057
- Cornering light: 3157
- Center stop light: LED
Interior and auxiliary applications include a 37 bulb for the courtesy and vanity lights, a 211-2 for the trunk, and 194 or 7441 options for the glove-box and license-plate locations. The tail-light data includes 194, 7441, and 3057R options, so compare the original bulb and socket location before replacing it.