Buick GS 455 Courtesy Bulb Size
The Buick GS 455 courtesy light utilizes bulb size 161, bulb size 194, and bulb size 90 for the interior lighting system. Data for the specific components covers the range from 1970 through 1972.
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 |
|---|---|
| 1972 | 161 |
| 1971 | 194 |
| 1970 | 90 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 1W. | 161 |
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W. | 194 |
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 13W. | 90 |