Chevrolet Venture Back Up Light Bulb Size

The Chevrolet Venture back up light requires bulb sizes 2356, 2456, and 3156 depending on the specific version of the vehicle. Available information covers the range from 1997 to 2005.

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
2005	2456
2002-2004	2356
2001	2456
2000	2356
1999	3156
1997-1998	2456

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Festoon bulb, specialty application. 12V.	2456
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. 12V.	2356
ANSI standard (US & Canada). Single-filament wedge bulb (T25). 12V, 27W.	3156

Other Locations

Additional Notes

The Chevrolet Venture uses three distinct back up light bulb types across its 1997-2005 model years: the 2456, 2356, and 3156.
All three bulb types conform to ANSI standards recognized in both the United States and Canada, and all operate at 12 volts.
The 2356 is a dual-filament bulb with a BAY15d bayonet base. The dual-filament design means the bulb houses two separate filaments within a single envelope, each serving a different circuit function.
The 3156 is a single-filament wedge bulb of the T25 form factor, rated at 27W. The wedge base relies on the glass envelope itself to make contact with the socket, rather than a separate metal base.
The 2456 is a festoon bulb intended for specialty applications. Festoon bulbs are cylindrical in shape and mount by pressing their end caps into spring clips rather than inserting into a conventional socket.
The 2356 fitment applies to the Chevrolet Venture for model years 2000 and 2002-2004, making it the most frequently specified bulb across the production run.
The 2456 and 2356 are not interchangeable despite both being 12V ANSI-standard bulbs. Their base types differ fundamentally, as the 2456 uses a festoon mounting and the 2356 uses a BAY15d bayonet base.
The 3156 was specified exclusively for the 1999 model year. Its single-filament configuration and wedge base make it physically and electrically incompatible with sockets designed for the dual-filament BAY15d 2356.
The 1997-1998 and 2001 and 2005 model years share the 2456 festoon bulb, while the surrounding years frequently call for different types, indicating socket design changes occurred at several points during production.