Chevrolet Citation Radio Display Bulb Size

The Chevrolet Citation radio display utilizes a unique bulb size 37 for the illumination of the internal dashboard component. Data for the specific bulb requirements covers the range from 1980 through 1983.

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 Type	Shop
1980-1983	37	Check Price

Bulb Specifications

Description	Type	Shop
ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 1W.	37	Check Price

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Additional Notes

The bulb size 37 is an ANSI-standardized type used in the United States and Canada, classified as a miniature wedge bulb in the T5 form factor, operating at 12 volts with a power draw of 1 watt.
The T5 wedge base design means the bulb is held in its socket by the tension of the base itself rather than by a bayonet or screw mechanism, which is a common trait of low-wattage instrument and display lighting applications.
The Chevrolet Citation uses the size 37 bulb for its radio display across the 1980-1983 model years, with no variation in bulb specification across that span.
At 1 watt, the size 37 bulb draws minimal current, a characteristic consistent with its role in illuminating small display areas rather than providing functional lighting output.
The ANSI designation of the size 37 bulb indicates conformance to a standardized specification, meaning bulbs from different manufacturers carrying the same designation are expected to share the same electrical and physical characteristics.