Chevrolet Trax License Plate Bulb Size

The Chevrolet Trax license plate light requires a 12961 bulb size for proper illumination of the rear registration area. Available data for 12961 bulbs covers the 2015 to 2021 range of production.

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
2015-2021	12961

Bulb Specifications

Description	Bulb Size
Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W.	12961

Other Locations

Additional Notes

The Chevrolet Trax uses the 12961 bulb for its license plate light across the 2015-2021 model years.
The 12961 is a Philips part number designating a miniature wedge bulb in the T10 form factor.
T10 refers to the bulb's tubular shape, with the number indicating a width of 10 eighths of an inch, making it a compact bulb commonly found in low-intensity automotive lighting positions.
The 12961 uses a W2.1x9.5d wedge base, which is a pinless base type that is held in place by the socket walls rather than by pins or a bayonet mechanism.
The bulb operates at 12 volts and draws 5 watts, consistent with standard low-power automotive auxiliary lighting.
The W2.1x9.5d base designation is a standardized IEC specification, meaning aftermarket or OEM-equivalent bulbs sharing this base type are physically interchangeable with the 12961 in the Trax's license plate socket.
The T10 wedge format is one of the most widely produced miniature bulb types in the automotive industry, and it is also commonly referenced by the equivalent designation 194 or W5W depending on the manufacturer.