Pontiac Grand LeMans Trunk Bulb Size
The Pontiac Grand LeMans trunk bulb uses either 1003 or 562 size bulbs depending on the specific model configuration. The replacement chart covers 1975 through 1981 production years with corresponding bulb size specifications.
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 |
|---|---|
| 1980-1981 | 1003 |
| 1979 | 562 |
| 1975-1978 | 1003 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 21W. | 1003 |
| ANSI standard (US & Canada). Festoon bulb, 44mm length, end-cap contacts. 12V, 12W. | 562 |