Toyota Matrix Back Up Light Bulb Size

The Toyota Matrix back up light utilizes a 921 bulb size for illumination during reverse maneuvers. Available data covers a span of time starting from 2003 through 2013.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

Back Up Light

Years	US Type	EU Type	Shop
2003-2013	921	W16W	Check Price

Outer Back Up Light

If US Type and EU Type show the same value, a direct cross-reference for this bulb is not available or the data is insufficient.

Years	US Type	EU Type	Shop
2013	3057 (To 08/2013)	3057	Check Price
2009-2012	3057	3057	Check Price
2008	921 (North America Product Part, To 01/2008)	W16W	Check Price
2007	921 (North America Product Part)	W16W	Check Price
2003-2006	921	W16W	Check Price

Bulb Specifications

Description	Type	Shop
ANSI standard (US & Canada). Wedge bulb (T15). 12V, 16W.	921	Check Price
ANSI standard (US & Canada). Dual-filament wedge bulb (T25). 12V, 27W/7W.	3057	Check Price

Other Locations

Additional Notes

The Toyota Matrix uses the 921 bulb as the sole back up light bulb across all model years from 2003-2013, making it the dominant fitment in these specifications.
The 921 is an ANSI-standard wedge bulb in the T15 form factor, rated at 12V and 16W, and is recognized for use in the US and Canada.
The 3057 is an ANSI-standard dual-filament wedge bulb in the T25 form factor, rated at 12V with a 27W/7W output, and is likewise designated for the US and Canadian market.
The T25 form factor of the 3057 is physically larger than the T15 form factor of the 921, and the two bulbs are not interchangeable despite both being wedge-base types.
The outer back up light position on the Toyota Matrix transitions from the 921 to the 3057 beginning with the 2009 model year, with the 3057 remaining in use through the 2013 production run.
The 2013 outer back up light specifies the 3057 only through 08/2013, indicating a mid-year production cutoff for that fitment.
The 2008 outer back up light specifies the 921 under a North America Product Part designation through 01/2008, reflecting a mid-year fitment change within that model year.
The 2007 outer back up light also carries the North America Product Part designation for the 921, indicating a market-specific fitment distinction for that year.