Buick Encore License Plate Bulb Size

The Buick Encore license plate light requires a 12961 bulb size for proper installation and function within the rear exterior lighting assembly. Available data covers the range from 2013 to 2021 for the specified vehicle and component.

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 Type	Shop
2013-2021	12961	Check Price

Bulb Specifications

Description	Type	Shop
Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W.	12961	Check Price

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Additional Notes

The Buick Encore uses the 12961 bulb for the license plate position across all specified model years, spanning 2013-2021.
The 12961 is a Philips part number designating a miniature wedge bulb in the T10 form factor, which refers to the tubular glass envelope with a width of 10 millimeters.
The bulb operates at 12 volts and draws 5 watts, which is standard for low-intensity illumination applications such as license plate lighting.
The W2.1x9.5d base type is a wedge-style connector, meaning the bulb is held in place by the socket gripping the glass base directly rather than by a separate metal pin or bayonet fitting.
The T10 wedge format is widely used across many vehicle makes and models, meaning aftermarket and OEM-equivalent replacements are broadly available under various part numbers that share the same base and electrical ratings.
When substituting an alternative part number for the 12961, the replacement must match the W2.1x9.5d base, 12V operating voltage, and 5W rating to maintain correct fitment and function in the Buick Encore.