Honda CR-V Dome Light Bulb Size

The Honda CR-V dome light utilizes bulb sizes 12961 and DE3175 depending on the specific version of the vehicle. Available information covers the range from 1997 through 2022.

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
2020-2022	12961
2013-2016	12961
1997-2012	DE3175

Bulb Specifications

Description	Bulb Size
Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W.	12961
ANSI standard (US & Canada). Festoon bulb, 31mm length, end-cap contacts. 12V.	DE3175

Other Locations

Additional Notes

The Honda CR-V dome light uses two distinct bulb types across its model years: the 12961 (a T10 miniature wedge bulb) and the DE3175 (a 31mm festoon bulb). These two types are not interchangeable, as they differ in both base design and physical form.
The 12961 is a Philips part number designating a T10 miniature wedge bulb with a W2.1x9.5d base, rated at 12V and 5W. The wedge base design means the bulb is held in place by tension from the socket rather than by end-cap contacts.
The DE3175 is an ANSI-standard designation recognized in the United States and Canada. It refers to a festoon-style bulb measuring 31mm in length, making contact through metal end caps at each end of the tube rather than through a wedge or pin base.
The Honda CR-V (1997-2012) uses the DE3175 festoon bulb for the dome light across that span of model years.
Starting with the 2013 model year, the Honda CR-V transitioned to the 12961 T10 wedge bulb for the dome light, a fitment that continues through the 2022 model year, with the exception that 2017-2019 are not represented in the specifications.
Because the 12961 uses a wedge base and the DE3175 uses festoon-style end-cap contacts, a socket designed for one type will not physically accept the other, making cross-year substitution between these two groups incompatible.
Both bulb types operate on a 12V electrical system, which is standard for automotive interior lighting applications.
The DE3175 designation does not carry a wattage specification in the provided data, whereas the 12961 is explicitly rated at 5W, a typical output level for small interior courtesy lighting applications.