Hyundai Scoupe Back Up Light Bulb Size

The Hyundai Scoupe back up light utilizes 1156 and P21W bulb sizes for illumination purposes. Data for the specified lighting components covers the period from 1991 through 1995.

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
1991-1995	1156

Bulb Specifications

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

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Additional Notes

The 1156 is the sole bulb type listed for the back up light position across all Hyundai Scoupe model years covered in these specifications, spanning 1991-1995.
The 1156 bulb operates on a 12-volt electrical system and draws 21 watts, placing it in the mid-range of standard automotive incandescent output for single-filament applications.
A single-filament design means the 1156 serves one dedicated lighting function, as opposed to dual-filament bulbs that handle two functions such as braking and running light duties simultaneously.
The BA15s bayonet base is a single-contact fitting, where the "s" denotes a single pin. This distinguishes it from the BA15d, which carries two contact pins and is not interchangeable with the BA15s socket.
The 1156 carries ANSI standardization applicable in both the United States and Canada, meaning the bulb conforms to a defined set of electrical and physical tolerances recognized across North American markets.
Because the BA15s base is a specific contact configuration, substituting a visually similar bulb with a different base type would result in an incompatible fit regardless of voltage or wattage ratings.