Toyota GR Corolla Fog Light Bulb Size

The Toyota GR Corolla fog light requires a bulb size of 194 for the specific lighting component. Data for the specified vehicle covers the range from 2023 to 2024.

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
2023-2024	194

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W.	194

Other Locations

Additional Notes

The 194 bulb is the specified fog light bulb size for the Toyota GR Corolla across the 2023-2024 model years.
The 194 bulb follows the ANSI standard, which is the recognized classification system used in the United States and Canada for miniature automotive bulbs.
It is a T10 miniature wedge-base bulb, a form factor defined by its 10mm-wide wedge-shaped base that connects directly into a socket without a separate metal base or pins.
The 194 bulb operates at 12 volts and draws 3.78 watts, placing it in the low-wattage range typical of small auxiliary lighting applications.