Pontiac Grand Am Cornering Bulb Size
The Pontiac Grand Am cornering light uses bulb size 1157 or P21W depending on the specific version required for the vehicle. Data for the lighting components covers the range from 1978 to 1980.
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 | P21W |
| 1978-1979 | 1157 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ECE standard (Europe & worldwide). Single-filament signalling bulb with BA15s bayonet base. 12V, 21W. | P21W |
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. 12V, 21W/5W. | 1157 |