Toyota Sienna License Plate Bulb Size

The Toyota Sienna license plate light uses 194, 12961, and 168 bulb sizes depending on the specific version of the vehicle. Available data covers a range from 1998 through 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
2024	194
2023	12961
2018	168
1998-2014	168

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
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 4.9W.	168

Other Locations

Additional Notes

The 168 bulb is the most frequently specified size across the Toyota Sienna's license plate lighting, covering model years 1998-2018 with the exception of 2019-2022, 2023, and 2024.
The 168 is an ANSI-standardized miniature wedge bulb in the T10 form factor, rated at 12V and 4.9W, and is recognized across the US and Canadian markets.
The 2024 Toyota Sienna specifies the 194 bulb, which is also an ANSI-standardized T10 miniature wedge type rated at 12V but draws only 3.78W, making it the lowest-wattage specification in this set.
The 2023 Toyota Sienna specifies the 12961, a Philips part number rather than an ANSI standard designation, which distinguishes it from the other two bulb types listed in these specifications.
The 12961 shares the T10 form factor with both the 194 and 168 but is defined by a W2.1x9.5d base designation and is rated at 12V, 5W, making it the highest-wattage bulb among the three types specified.
Although the 194, 168, and 12961 all belong to the T10 wedge family and operate on 12V, their wattage ratings differ, and the 12961 carries a manufacturer-specific part number rather than a universal ANSI code, which affects cross-referencing and substitution.
The three bulb types specified across these model years are not interchangeable without confirming the exact year, as the 2023 and 2024 Sienna each call for a different bulb from the one used across the 1998-2018 range.