Scion tC License Plate Bulb Size

The Scion tC license plate light uses 168 and 192 bulb sizes for the exterior illumination components. Available data covers the production span from 2005 through 2016 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
2014-2016	168
2012-2013	192
2005-2011	168

Bulb Specifications

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

Other Locations

Additional Notes

The 168 and 192 bulbs are both classified under the ANSI standard applicable in the US and Canada, and both share the T10 miniature wedge form factor, operating on a 12-volt circuit.
Despite sharing the same T10 wedge base, the 168 and 192 bulbs are not identical in power draw. The 168 operates at 4.9 watts, while the 192 operates at 3 watts.
The Scion tC uses the 168 bulb for the license plate across the majority of its production years, specifically 2005-2012 and 2014-2016, with the exception of 2012-2013.
The 192 bulb is specified for the Scion tC license plate position for the 2012-2013 model years only.
Because the 168 and 192 share the T10 wedge base, physical fitment in the socket is possible for either type, but the difference in wattage means they are not rated as direct equivalents for this application.
The T10 wedge base is a common miniature bulb format in which the base of the glass envelope itself acts as the connector, with no separate metal base or pins involved.
A wattage difference of 1.9 watts between the 168 and 192 reflects a meaningful distinction in the designed electrical load for the license plate circuit in the respective model years.