Scion xD License Plate Bulb Size

The Scion xD license plate light utilizes 192 and 168 bulb sizes for illumination. Data provided covers the range from 2008 through 2014 for the specified vehicle.

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
2013-2014	192
2008-2012	168

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3W.	192
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 4.9W.	168

Other Locations

Additional Notes

The Scion xD uses two distinct bulb sizes for the license plate position across its production run: the 192 and the 168, both of which are ANSI-standardized miniature wedge bulbs of the T10 type rated at 12 volts.
The 2008-2011 and 2012 Scion xD models use the 168 bulb, while the 2013-2014 models use the 192 bulb, meaning the license plate bulb specification changed at some point between the 2012 and 2013 model years.
Although both the 192 and 168 share the same T10 wedge base and 12-volt operating voltage, they are not the same wattage. The 168 draws 4.9 watts, while the 192 draws 3 watts.
The wattage difference between the two bulbs is a fitment consideration. Installing a 168 in a socket designed for a 192 would introduce a higher current draw than the circuit was specified for, and the reverse would produce a lower light output than intended.
The T10 wedge base is a common format in automotive lighting, meaning physically similar bulbs from other ANSI designations may share the same base shape without sharing the same electrical rating, which makes wattage verification relevant when sourcing replacements.
Both bulb types carry ANSI standardization for the US and Canadian markets, indicating that the specifications conform to a defined set of performance and dimensional criteria recognized across North American automotive applications.