Toyota C-HR Map Light Bulb Size

The Toyota C-HR map light requires bulb sizes 194, 168, and 12961 depending on the specific version of the component installed in the vehicle. Data for the bulb sizes covers the range from 2018 to 2021.

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
2021	194
2020	168
2018-2019	12961

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W.	194
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 4.9W.	168
Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W.	12961

Other Locations

Additional Notes

The Toyota C-HR map light draws from three distinct bulb sizes across its 2018-2021 model years: 194, 168, and 12961, all of which share the T10 miniature wedge form factor.
The T10 wedge base is a small, capless design that seats by friction rather than a bayonet or screw mechanism, making it a common format across low-wattage interior lighting applications.
Bulbs 194 and 168 are designated under the ANSI standardization system used in the United States and Canada, meaning they conform to a defined set of electrical and physical parameters recognized across multiple manufacturers.
The 12961 is a Philips-assigned part number rather than an ANSI code, and it specifies a W2.1x9.5d base, which is the formal IEC designation for the standard T10 wedge base, confirming physical compatibility with the same socket type used by the 194 and 168.
Despite sharing the T10 form factor, the three bulbs carry different wattage ratings: the 194 draws 3.78W, the 168 draws 4.9W, and the 12961 draws 5W, all operating at 12V.
The 2018-2019 Toyota C-HR specifies the 12961 for the map light position, while the 2020 model calls for the 168 and the 2021 model calls for the 194, indicating that the same socket position was fitted with different wattage bulbs across consecutive model years.
Because the 194, 168, and 12961 share the T10 wedge base, they are physically interchangeable in terms of socket fit, though each year's specification reflects a distinct wattage rating for that position.