Chevrolet Lumina APV Back Up Light Bulb Size

The Chevrolet Lumina APV back up light requires a 3057 bulb size for proper installation and function within the rear lighting assembly. Provided data covers the production range from 1990 through 1996 for the specified vehicle component.

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
1990-1996	3057

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Dual-filament wedge bulb (T25). 12V, 27W/7W.	3057

Other Locations

Additional Notes

The Chevrolet Lumina APV uses the 3057 bulb for the back up light across all model years from 1990 to 1996.
The 3057 is an ANSI-standardized bulb type, meaning its specifications are governed by a recognized North American standard applicable in both the United States and Canada.
The 3057 is a dual-filament bulb, containing two separate filaments within a single housing that operate at different wattages: 27W for the higher-intensity filament and 7W for the lower-intensity filament.
The bulb operates on a 12-volt electrical system, which is consistent with standard automotive electrical architecture.
The 3057 follows a T25 wedge form factor, referring to a wedge-style base that seats directly into a socket without a separate metal base or bayonet pins.
Because the 3057 is a dual-filament type, substituting it with a single-filament bulb of similar wattage would not be a direct functional equivalent, as the socket may be wired to use both filaments for different lighting functions.