Cadillac CTS Daytime Running Light Bulb Size
The Cadillac CTS daytime running light utilizes 5201, 2458, and 3157 bulb sizes depending on the specific version required for the lighting assembly. Data for the bulb sizes covers the range from 2003 through 2013.
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 |
|---|---|
| 2008-2013 | 5201 (With HID Headlamps) |
| 2003-2007 | 3157 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Single-filament halogen bulb with PG20-1 base. 12V, 19W. | 5201 |
| ANSI standard (US & Canada). Dual-filament wedge bulb (T25). 12V, 27W/7W. | 3157 |