Ford Granada Back Up Light Bulb Size

The Ford Granada back up light uses a 1156 bulb size for the replacement component. The chart contains vehicle production years and bulb size specifications spanning 1975 to 1982.

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
1975-1982	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 Ford Granada uses the 1156 bulb for its back up light across all listed model years, spanning 1975-1982.
The 1156 is an ANSI-standardized bulb type, meaning its physical and electrical specifications are defined by a recognized North American standard used in both the United States and Canada.
The 1156 operates on a 12-volt electrical system at 21 watts, which is consistent with standard automotive low-voltage circuits.
The 1156 is a single-filament bulb, meaning it serves one lighting function only, as opposed to dual-filament types that handle two functions such as braking and running light from a single housing.
The 1156 uses a BA15s bayonet base, where "BA15s" denotes a bayonet fitting with a 15mm base width and a single contact pin, which locks into the socket with a push-and-twist motion.
The BA15s single-contact base of the 1156 is not interchangeable with the BA15d double-contact base found on dual-filament bulbs such as the 1157, despite the two types sharing a similar physical profile.