GMC S15 Automatic Transmission Indicator Bulb Size
The GMC S15 automatic transmission indicator requires bulb size 161 or 194 depending on the specific application for the lighting component. Available data covers the range from 1985 through 1990.
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 |
|---|---|
| 1987-1990 | 161 |
| 1985-1986 | 194 |
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 |