Pontiac Grand LeMans Courtesy Bulb Size
The Pontiac Grand LeMans courtesy light uses bulb sizes 1445, 194, 906, 1004, and 89 depending on the specific application. Data for the lighting components covers the period from 1975 through 1981.
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 |
|---|---|
| 1981 | 1445 |
| 1980 | 194 |
| 1979 | 906 |
| 1978 | 1004 |
| 1976-1977 | 89 |
| 1975 | 1004 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Single-filament bulb with BA9s base. 12V, 2W. | 1445 |
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W. | 194 |
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 8W. | 906 |
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. Variant of 1157. 12V, 21/5W. | 1004 |
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V, 13W. | 89 |