Geo Storm Automatic Transmission Indicator Bulb Size
The Geo Storm automatic transmission indicator requires bulb size 158 or 74 depending on the specific assembly installed in the vehicle. Data for the bulb sizes covers the range from 1991 to 1993.
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 |
|---|---|
| 1993 | 158 |
| 1992 | 74 |
| 1991 | 158 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3W. | 158 |
| ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 1.4W. | 74 |