Buick Encore GX Map Light Bulb Size

The Buick Encore GX map light utilizes bulb size 194 and bulb size 12961 for the interior lighting system. Data for the specific components covers the range from 2020 to 2024.

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
2023-2024	194
2021	194
2020	12961

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W.	194
Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W.	12961

Other Locations

Additional Notes

The 194 bulb is an ANSI-standardized miniature wedge type in the T10 form factor, rated at 12 volts and 3.78 watts, and is recognized across the US and Canadian markets under a uniform designation.
The 12961 is a Philips part number rather than an ANSI designation, identifying a T10 miniature wedge bulb with a W2.1x9.5d base, rated at 12 volts and 5 watts, making it slightly higher in wattage than the 194.
Although both the 194 and 12961 share the T10 wedge form factor and a 12-volt operating voltage, their wattage ratings differ, and they are not designated interchangeably across all model years of the Buick Encore GX.
The Buick Encore GX uses the 194 bulb for the map light across the 2021 and 2023-2024 model years, while the 2020 model year specifies the 12961 instead.
The W2.1x9.5d base designation on the 12961 refers to a wedge base with a 2.1mm wire width and a 9.5mm pin spread, which is the standard physical base configuration for T10 wedge bulbs.