GMC Typhoon Courtesy Bulb Size
The GMC Typhoon courtesy light requires bulb size 168 or 561 depending on the specific configuration of the vehicle. Data for the bulb sizes covers the range from 1992 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 | 168 |
| 1992 | 561 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 4.9W. | 168 |
| ANSI standard (US & Canada). Festoon bulb, 44mm length, end-cap contacts. 12V, 12W. | 561 |