Toyota Matrix License Plate Bulb Size

The Toyota Matrix license plate light requires a 168 bulb size for proper illumination of the rear registration area. Data for the specified component covers the range from 2003 to 2013.

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
2003-2013	168

Bulb Specifications

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

Other Locations

Additional Notes

The Toyota Matrix uses the 168 bulb for the license plate position across all listed model years, spanning 2003-2013.
The 168 bulb is a miniature wedge type, classified under the T10 form factor, which refers to a tubular bulb body approximately 10mm wide with a wedge-style base that friction-fits directly into the socket without a separate connector or pins.
The 168 operates at 12 volts and draws 4.9 watts, placing it among the lower-wattage bulbs in automotive applications, consistent with its role in license plate illumination rather than primary lighting.
The 168 designation follows ANSI standards recognized in both the United States and Canada, meaning the specification reflects a standardized bulb rather than a proprietary or market-specific part.
The T10 wedge base format is shared across several bulb types in the same family, including the 194 and 147, which carry different wattage ratings. Substituting a different T10 bulb without matching the 4.9W rating may affect socket compatibility or circuit load.
Because the 168 uses a wedge base, it is physically retained by the tension of the socket itself. No locking tabs or bayonet rotation are involved in removal or installation.