Hyundai Ioniq License Plate Bulb Size

The Hyundai Ioniq license plate light requires a 168 bulb size for proper installation and function. Data for the specified component covers the range from 2017 to 2020.

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
2017-2020	168

Bulb Specifications

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

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Additional Notes

The 168 bulb is the license plate bulb size for the Hyundai Ioniq across the 2017-2020 model years.
The 168 bulb follows the ANSI standard, which is the recognized specification body for automotive lighting in the United States and Canada.
It is a T10 miniature wedge type, a form factor defined by a wedge-shaped base that connects directly into a socket without a separate metal base or pins.
The bulb operates at 12 volts, consistent with standard automotive electrical systems.
Its rated power draw is 4.9 watts, placing it in the low-wattage range typical of license plate and interior lighting applications.
The T10 wedge base is a widely used form factor, and direct-fit LED replacements in the same base type are broadly available, though compatibility with the vehicle's electrical system is a separate consideration not covered by the ANSI bulb designation alone.
Because all four model years of the Ioniq listed share the same 168 specification, a single bulb type serves the entire 2017-2020 production run for this application.