Toyota C-HR Trunk Bulb Size

The Toyota C-HR trunk utilizes bulb sizes 194, 168, and 12961 for illumination. Data for the specified components covers the period from 2018 through 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
2019	168
2018	168 (From 09/2017)
2018	12961 (To 09/2017)

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 trunk bulb specifications cover the 2018-2021 model years, with two different bulb sizes appearing across that range depending on the production period.
The T10 miniature wedge form factor is shared by all three bulb types listed for the C-HR trunk position, meaning the 194, 168, and 12961 all occupy the same physical socket family despite differing in wattage and specification origin.
The 194 bulb is an ANSI-standardized T10 wedge rated at 12V and 3.78W, and it is the specified trunk bulb for the 2021 model year.
The 168 bulb is also an ANSI-standardized T10 wedge but draws more power at 4.9W on a 12V circuit, and it applies to the 2019 model year as well as 2018 vehicles produced from September 2017 onward.
The 12961 is a Philips part number rather than an ANSI designation, specifying a T10 wedge with a W2.1x9.5d base at 12V and 5W, and it applies exclusively to 2018 Toyota C-HR vehicles produced before September 2017.
The 2018 model year carries a mid-year production split, with the trunk bulb specification changing from the 12961 to the 168 at the September 2017 production cutoff, making production date a critical factor in fitment for that year.
Although the 194 and 168 share the same T10 wedge base and voltage, their wattage values differ by more than one watt, and substituting one for the other without accounting for circuit load tolerance is not guaranteed to be appropriate.
The 12961 carries a manufacturer-specific designation rather than a universal ANSI code, which means cross-referencing by base type (W2.1x9.5d) and electrical rating (12V, 5W) is the standard method for sourcing equivalent replacements from other brands.