Buick LaCrosse Courtesy Bulb Size
The Buick LaCrosse courtesy light uses bulb size 12961 or 194 depending on the specific production period. Available data covers the span from 2005 through 2019.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
Bulb Size by Year Range
| Years | Bulb Size |
|---|---|
| 2017-2019 | 12961 (Door Light, Trunk Light) |
| 2010-2016 | 12961 |
| 2005-2009 | 194 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W. | 12961 |
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W. | 194 |