For the 2011 Buick Lucerne, the supplied fitment data lists a 9005 bulb for the high beam. No low-beam bulb size is provided, so the low-beam application should be verified from the existing bulb or headlamp assembly before ordering. The fog-light listings include H11 LED, H16 LED, and H8 LED; confirm which fog-light housing and bulb style your Lucerne uses.
Other useful exterior applications include 4157NA for the front turn signal and parking light, 921 for the reverse light, 3057R for the brake light, and 3057 for the rear turn signal. The center stop lamp is listed as LED, rather than a replaceable bulb size.
- Cornering light: 3157
- Front and rear side markers: 194NA
- License plate lighting: 194 or 7441
- Courtesy and vanity lights: 37
- Trunk light: 211-2
Because multiple options are listed for some locations, compare the original bulb and socket with the replacement before purchasing.