Pontiac Grand Am Automatic Transmission Indicator Bulb Size
The Pontiac Grand Am automatic transmission indicator utilizes bulb sizes 194, 161, 37, and 74 depending on the specific version of the component. Available data covers the range from 1978 through 2005 for the specified vehicle and lighting equipment.
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 |
|---|---|
| 1999-2005 | 194 |
| 1992-1993 | 161 |
| 1990 | 37 |
| 1989 | 74 (With Sealed Beam Headlamps) |
| 1986 | 194 |
| 1978-1980 | 194 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W. | 194 |
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 1W. | 161 |
| ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 1W. | 37 |
| ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 1.4W. | 74 |