GMC R2500 Suburban Check Engine Bulb Size
The GMC R2500 Suburban uses a check engine light bulb with a specific size of 194 for the instrument panel. Available data for the bulb covers the range from 1989 to 1991.
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 |
|---|---|
| 1989-1991 | 194 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W. | 194 |