GMC V2500 Suburban Courtesy Bulb Size
The GMC V2500 Suburban courtesy light utilizes 1003, 906, and 168 bulb sizes depending on the specific version required for the interior lighting system. Data for the listed components spans from 1987 through 1991 to provide the necessary specifications for the vehicle.
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 |
|---|---|
| 1991 | 1003 |
| 1989-1990 | 906 |
| 1987-1988 | 168 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 21W. | 1003 |
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 8W. | 906 |
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 4.9W. | 168 |