Chevrolet Citation Courtesy Bulb Size

Additional Notes

• The 906 bulb is the specified courtesy bulb size for the Chevrolet Citation across the 1980-1983 model years.
• The 906 is classified as a miniature wedge bulb, designated T10, which refers to its tubular glass envelope with a wedge-style base that connects directly into a socket without a separate metal base or pins.
• The bulb operates at 12 volts and draws 8 watts, placing it in the low-wattage range typical of interior courtesy lighting applications.
• The 906 follows the ANSI standard, meaning its specifications are recognized across both the United States and Canada, reflecting a standardized designation rather than a proprietary one.
• The T10 wedge format is a common fitment type, and while other T10-designated bulbs exist, wattage and voltage ratings must match the 906 specification to ensure correct operation in the Citation's courtesy light circuit.