Chevrolet Kodiak Back Up Light Bulb Size

Chevrolet Kodiak back up light bulb uses a 1156 size. The replacement chart covers 1997 to 2009 vehicle production years with corresponding bulb specifications.

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
1997-2009	1156

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 21W.	1156

Other Locations

Additional Notes

The Chevrolet Kodiak uses the 1156 bulb for the back up light position across the 1997-2009 model years.
The 1156 is an ANSI-standardized bulb type, meaning its specifications are governed by a recognized industry standard shared across the United States and Canada.
This bulb operates on a 12-volt electrical system and draws 21 watts, which is typical for incandescent reverse lighting applications.
The 1156 uses a BA15s bayonet base, a single-contact mount where the "s" denotes a single pin, distinguishing it from double-contact bayonet variants.
Because the 1156 is a single-filament bulb, it serves one lighting function only, unlike dual-filament types that handle two functions such as braking and running light simultaneously.
The BA15s base is not interchangeable with the BA15d base, which carries two contact pins. Substituting a double-contact bulb into a single-contact socket is not possible without modification.
The 1156 is sometimes cross-referenced with the 7506 designation in certain markets, though the ANSI 1156 classification applies specifically to the North American standard cited in these specifications.