Buick Envision Fog Light Bulb Size

Buick Envision front fog light uses an H11 bulb size for replacement. The chart contains bulb size specifications across the 2016 to 2020 production range.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

Front Fog Light

Years	Bulb Size
2016-2020	H11

Bulb Specifications

Description	Bulb Size
ECE standard (Europe & worldwide). Single-filament halogen bulb with PGJ19-2 base. Also approved in the US. 12V, 55W.	H11

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Additional Notes

The Buick Envision uses the H11 bulb for its front fog lights across the 2016-2020 model years.
The H11 is a single-filament halogen bulb operating at 12 volts and 55 watts, making it a standard low-power halogen type suited for fog light applications.
The H11 bulb uses a PGJ19-2 base, which is a specific locking connector type that physically determines fitment and is not interchangeable with bases of different designations.
The H11 carries ECE certification, meaning it meets European and international lighting regulations, and it also holds approval for use in the United States.
Because the H11 is a single-filament design, it serves only one lighting function per bulb, as opposed to dual-filament types that can handle two functions such as low and high beam within a single unit.