Chevrolet City Express Parking Light Bulb Size

The Chevrolet City Express parking light requires a bulb size of 3457 for the specific lighting component located on the exterior of the vehicle. Data for the bulb requirements covers the range from 2015 through 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 Size
2015-2018	3457

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Dual-filament wedge bulb (T25). 12V, 27W/7W.	3457

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Additional Notes

The 3457 bulb is the parking light bulb size for the Chevrolet City Express across the 2015-2018 model years.
The 3457 is classified as a dual-filament bulb, meaning it contains two separate filaments within a single housing, each operating at a different wattage.
The two filaments in the 3457 operate at 27W and 7W respectively, with the lower-wattage filament typically serving the parking light function and the higher-wattage filament serving a secondary function such as turn signaling.
The 3457 follows the T25 wedge form factor, a designation that refers to the shape and base style of the bulb rather than a specific glass envelope size.
The bulb operates on a 12V electrical system, which is standard for passenger and light commercial vehicles.
The 3457 carries ANSI standardization recognized in both the United States and Canada, indicating the bulb conforms to a defined set of electrical and physical specifications shared across those markets.
Because the 3457 is a dual-filament type, single-filament bulbs of similar physical form are not interchangeable without loss of one of the two lighting functions.