Toyota Mirai Trunk Bulb Size

The Toyota Mirai trunk light utilizes a 168 bulb size for illumination within the rear storage area. Available data for the specified component covers the period from 2016 through 2019.

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	US Type	EU Type	Shop
2016-2019	168	W5W	Check Price

Bulb Specifications

Description	Type	Shop
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 4.9W.	168	Check Price
ECE standard (Europe & worldwide). Single-filament signalling bulb with W2.1x9.5d wedge base. 12V, 5W.	W5W	Check Price

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Additional Notes

The T10 miniature wedge bulb, designated by the ANSI standard number 168, is the trunk bulb size for the Toyota Mirai across the 2016-2019 model years.
The 168 bulb operates at 12 volts with a power draw of 4.9 watts, placing it in the low-wattage range typical of interior and cargo area lighting applications.
The T10 designation refers to a tubular wedge-base bulb with a width of approximately 10 millimeters, a form factor that relies on spring tension from the socket rather than a separate locking mechanism to maintain contact.
The 168 rating is an ANSI standard recognized in both the United States and Canada, meaning the specification applies uniformly across North American markets.
The wedge base design of the T10 means the bulb is not interchangeable with bayonet-base or screw-base types, even when voltage and wattage ratings are otherwise similar.