Cadillac CTS Courtesy Bulb Size
The Cadillac CTS courtesy light utilizes unique bulb sizes 12961, 906, and 211-2 depending on the specific vehicle configuration. Data for the listed components covers the range from 2003 to 2016.
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 |
|---|---|
| 2016 | 12961 |
| 2012-2013 | 906 (Door Light) |
| 12961 (Stepwell Light) | |
| 2011 | 12961 |
| 2009-2010 | 906 (Door Light) |
| 12961 (Stepwell Light) | |
| 2008 | 12961 |
| 2003-2007 | 211-2 |
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, 8W. | 906 |
| ANSI standard (US & Canada). Festoon bulb, 41mm length, SV8.5 base. 12V, 12W. | 211-2 |