For the 2010 Buick Lucerne, the listed high-beam bulb is 9005. No low-beam bulb fitment is provided in the supplied data, so verify the headlamp assembly before ordering a low-beam replacement. Fog-light fitment is listed as either H11 LED or H16 LED; confirm which application your vehicle uses.
Other notable exterior bulbs include 4157NA for the front turn signal and parking light, 3057R for the brake light, and 3057 for the rear turn signal. The reverse light uses 921, while the cornering light uses 3157. The center stop light is listed as an integrated LED unit.
Additional fitments include 194NA for both front and rear side markers, 194 or 7441 for the license plate and glove-box applications, 211-2 for the trunk, and 37 for the courtesy and vanity lights. Check the original bulb and socket where multiple sizes are listed.