Toyota Sienna Cornering Bulb Size

The Toyota Sienna cornering light utilizes a 921 bulb size for the specific lighting component located on the exterior of the vehicle. Data for the specified bulb covers the range from 2021 to 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
2021-2023	921

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Wedge bulb (T15). 12V, 16W.	921

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Additional Notes

The 921 bulb is the cornering bulb size for the Toyota Sienna across the 2021-2023 model years.
The 921 bulb follows the ANSI standard, which is the North American classification system used in the United States and Canada, distinguishing it from ECE-coded bulbs used in other markets.
The 921 uses a wedge base, meaning it is held in place by tension from the socket rather than by a bayonet or screw mechanism. The T15 designation refers to the tubular glass envelope width, measured in eighths of an inch, placing it at approximately 15/8 of an inch wide.
The 921 operates at 12 volts and draws 16 watts, which is consistent with standard automotive low-power auxiliary lighting applications such as cornering lamps.
The wedge base format of the 921 is shared by several other bulb types across different wattage ratings, meaning physical fitment into the socket does not confirm electrical compatibility. Substituting a bulb of a different wattage rating in the same socket may affect circuit performance.