Pontiac Grandville License Plate Bulb Size

The Pontiac Grandville license plate light requires bulb size 194 or 97 depending on the specific version of the vehicle. Data for the lighting components covers the period from 1971 through 1975.

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
1974-1975	194
1971-1973	97

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W.	194
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Variant of 1156. 12V, 13W.	97

Other Locations

Additional Notes

The Pontiac Grandville uses two distinct bulb types across its model years for the license plate position: the 194 and the 97.
The 194 is a T10 miniature wedge bulb rated at 12V and 3.78W, conforming to ANSI standards recognized in both the United States and Canada.
The 97 is a single-filament bulb with a BA15s bayonet base, rated at 12V and 13W, also conforming to ANSI standards for the US and Canadian markets.
The 97 is classified as a variant of the 1156 bulb family, though its 13W output differs from the standard 1156 rating, which means the two are not directly interchangeable despite sharing a similar base type.
The Pontiac Grandville (1974-1975) takes the 194 bulb for the license plate position.
The 1971-1973 model years use the 97 bulb instead, representing a different base type and significantly higher wattage than the 194 used in later years.
The wattage difference between the two bulb types is substantial, with the 97 drawing roughly 3.4 times more power than the 194, making them electrically incompatible as substitutes for one another.
The wedge base of the 194 and the BA15s bayonet base of the 97 are physically different mounting systems, which prevents cross-fitment between the two bulb types regardless of voltage compatibility.