Toyota Sienna Interior Door Bulb Size

The Toyota Sienna interior door requires 194 and 12961 bulb sizes for proper illumination. Data for the specified components covers the period from 2006 through 2023.

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	12961
2018	194
2011-2014	12961
2006-2010	194

Bulb Specifications

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

Other Locations

Additional Notes

The Toyota Sienna interior door bulb specifications reference two distinct bulb types across the listed model years: the 12961 and the 194. Both are T10 miniature wedge bulbs operating at 12 volts, though they differ in wattage and designation origin.
The 12961 is a Philips part number designation for a T10 miniature wedge bulb with a W2.1x9.5d base, rated at 5 watts. The W2.1x9.5d base is the standard wedge base type associated with T10 bulbs, where the lamp's glass envelope itself acts as the retention mechanism within the socket.
The 194 carries an ANSI standard designation recognized across the United States and Canada. It is also a T10 miniature wedge bulb at 12 volts, but is rated at 3.78 watts, making it lower in wattage than the 12961.
The 12961 is specified for the Toyota Sienna in 2011-2014 and 2023, while the 194 is specified for 2006-2010 and 2018.
Although both bulbs share the T10 form factor and 12-volt rating, the wattage difference between the 12961 (5W) and the 194 (3.78W) means they are not electrically identical, and substituting one for the other may affect socket load and light output.
The 194 designation is governed by ANSI standardization, meaning bulbs from multiple manufacturers carrying that designation conform to the same electrical and physical specifications. The 12961, by contrast, is tied to Philips as a manufacturer-specific part number.
The T10 wedge base shared by both bulb types is among the most widely used bases in automotive interior lighting, commonly found in courtesy, map, and door panel applications.
The 2018 Sienna uses the 194, while the 2023 Sienna uses the 12961, indicating that the same model carries different interior door bulb requirements depending on the year, and year-specific verification is necessary before replacement.