Chevrolet Cruze Trunk Bulb Size

The Chevrolet Cruze trunk light utilizes a 12961 bulb size for illumination within the rear storage compartment of the vehicle. Data for the specified component covers the range from 2011 to 2018.

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
2011-2018	12961	Check Price

Bulb Specifications

Description	Type	Shop
Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W.	12961	Check Price

Other Locations

Additional Notes

The 12961 is a Philips part number designating a miniature wedge bulb in the T10 form factor, operating at 12 volts and rated at 5 watts.
The T10 designation refers to the bulb's tubular shape, with the number indicating a width of ten eighths of an inch, making it one of the smallest wedge bulb formats used in automotive interior applications.
The W2.1x9.5d base type is a wedge-style connector, meaning the bulb is held in place by tension from the socket rather than by a bayonet or screw mechanism.
At 5 watts, the 12961 is a low-power bulb suited for non-illumination tasks such as cargo area lighting, where brightness is secondary to longevity and low current draw.
The Chevrolet Cruze uses the 12961 bulb for the trunk across the 2011-2018 model years, representing a consistent fitment across the entire production span covered by these specifications.
Because the T10 wedge format is shared by many bulb variants from different manufacturers, substitutions are possible only when the replacement matches the W2.1x9.5d base, 12V rating, and 5W output to ensure proper socket fit and circuit compatibility.
The W2.1x9.5d base specification defines both the contact width at 2.1 millimeters and the pin spread at 9.5 millimeters, which are the critical physical parameters governing socket compatibility.