Chevrolet Equinox Trunk Bulb Size

The Chevrolet Equinox trunk utilizes 12961 and 562 bulb sizes for the interior lighting components located within the rear cargo area. Data for the specific lighting requirements covers the period from 2005 through 2017.

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
2010-2017	12961	Check Price
2005-2009	562	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). Festoon bulb, 44mm length, end-cap contacts. 12V, 12W.	562	Check Price

Other Locations

Additional Notes

The Chevrolet Equinox trunk uses two distinct bulb types across its model years: the 12961 (a T10 wedge bulb) for 2010-2017 and the 562 (a festoon bulb) for 2005-2009.
The 12961 is a Philips part number designation for a miniature wedge bulb in the T10 form factor, operating at 12V and 5W with a W2.1x9.5d base.
The W2.1x9.5d base on the 12961 refers to a wedge-style base where the glass envelope itself acts as the retention mechanism, with no separate metal base pins.
The 562 is an ANSI-standardized festoon bulb recognized in both the United States and Canada, operating at 12V and 12W with a 44mm length and end-cap contacts.
Festoon bulbs make electrical contact through metal caps at each end of the cylindrical glass tube, which distinguishes them physically from wedge-base types.
At 12W, the 562 festoon bulb draws more than twice the wattage of the 12961 T10 wedge bulb, which operates at 5W.
The two bulb types are not interchangeable: the wedge base of the 12961 and the end-cap contact design of the 562 require different socket configurations.
The 12961 designation reflects a manufacturer-specific part number rather than a universal industry standard, whereas the 562 follows the ANSI standardization system.