Scion xD Parking Light Bulb Size

The Scion xD parking light requires bulb size 168 or 192 depending on the specific version of the vehicle. Data for the bulb sizes covers the range from 2008 through 2014.

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 parking light specifications reference two ANSI-standard miniature wedge bulbs, the 192 and the 168, both classified as T10 wedge types operating at 12 volts.
The T10 wedge form factor is a small, wedge-shaped base design that seats directly into a socket without a separate metal base, which is a common configuration for low-wattage parking light applications.
The 168 bulb is rated at 4.9 watts, while the 192 bulb is rated at 3 watts, meaning the two types differ in power draw despite sharing the same T10 form factor.
The Scion xD (2008-2013) uses the 168 bulb for the parking light position, covering six of the seven model years listed in the specifications.
The 2014 model year transitions to the 192 bulb, which carries a lower wattage rating than the 168 used in prior years.
Although the 192 and 168 share the T10 wedge base, their differing wattage ratings indicate they are not interchangeable without accounting for the electrical load difference in the socket circuit.