Toyota Matrix Map Light Bulb Size

The Toyota Matrix map light utilizes bulb sizes 12961 and 904 for the interior illumination system. Provided data covers the specific range from 2003 to 2013.

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 Type	Shop
2009-2013	12961	Check Price
2003-2008	904	Check Price

Bulb Specifications

Description	Type	Shop
Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W.	12961	Check Price
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 8W.	904	Check Price

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Additional Notes

The Toyota Matrix map light uses two distinct bulb sizes across its production run, with the 904 fitted to 2003-2008 models and the 12961 fitted to 2009-2013 models.
Both the 904 and the 12961 are T10 miniature wedge bulbs, meaning they share the same physical envelope shape and wedge-style base format.
Despite the shared T10 form factor, the two bulbs differ in wattage. The 904 operates at 8W, while the 12961 operates at 5W, both on a 12V circuit.
The 12961 is a Philips part number designation and specifies a W2.1x9.5d base, which is the standard base type associated with T10 wedge bulbs in metric nomenclature.
The 904 is classified under the ANSI standard used in the United States and Canada, making it a North American market designation rather than a proprietary manufacturer number.
The wattage difference between the two bulbs means they are not electrically equivalent, and substituting one for the other without accounting for the wattage variance is not advisable in applications where socket ratings are a factor.