Cadillac STS Daytime Running Light Bulb Size
The Cadillac STS daytime running light requires bulb size 12961 or 3757NA depending on the specific version of the vehicle. Data for the bulb sizes covers the range from 2005 to 2011.
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 |
|---|---|
| 2010-2011 | 12961 |
| 2005 | 3757NA |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W. | 12961 |
| ANSI standard (US & Canada). Dual-filament wedge bulb (T25), natural amber glass. 12V. | 3757NA |