Mazda GLC License Plate Bulb Size

The Mazda GLC license plate light requires a bulb with the specific size 89 for proper installation. Available information covers the production period from 1977 through 1985 for the specified vehicle.

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
1984-1985	89
1977-1982	89

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V, 13W.	89

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Additional Notes

The 89 bulb is the sole license plate bulb size listed for the Mazda GLC across all specified model years.
The model years covered by these specifications span 1977-1982 and 1984-1985.
The 89 is an ANSI-standardized bulb type, recognized across the United States and Canada.
It operates on a 12-volt electrical system and draws 13 watts, placing it in the low-wattage range typical of auxiliary lighting applications.
The 89 uses a BA15s bayonet base, which is a single-contact bayonet mount with a 15mm base width.
As a single-filament bulb, the 89 serves only one lighting function, consistent with its use in license plate illumination rather than dual-purpose stop/tail applications.
The 89 is a lower-wattage variant of the 1156 bulb, meaning the two share the same BA15s base type but are not electrically equivalent and are not interchangeable without accounting for the wattage difference.