Chevrolet Citation Check Engine Bulb Size

The Chevrolet Citation check engine light requires a 194 bulb size for proper illumination within the instrument cluster. Data for the specified component 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 Size
1980-1983	194

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W.	194

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Additional Notes

The Chevrolet Citation uses the 194 bulb for the check engine light across all listed model years, spanning 1980-1983.
The 194 is an ANSI-standardized bulb type, meaning its specifications are governed by a recognized North American standard applicable in both the United States and Canada.
The 194 bulb belongs to the T10 form factor, a miniature wedge-base design that seats by friction rather than by a bayonet or screw mechanism.
The bulb operates at 12 volts and draws 3.78 watts, placing it in the low-wattage range typical of instrument panel and indicator lighting.
Because the 194 is a wedge-base type, it is not interchangeable with bayonet-base or screw-base bulbs of similar voltage ratings without a socket adapter.