Chevrolet Volt high beam headlight bulbs use 9005 or 9012 size, while low beam headlight bulbs use 9012 size. The replacement chart covers vehicle production years spanning 2011 to 2019 with corresponding bulb size specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Chevrolet Volt uses two distinct bulb types across its model years: the 9005 and the 9012, both of which conform to ANSI standards recognized in the United States and Canada.
The 9005 is a single-filament halogen bulb with a P20d base, rated at 12V and 65W. It serves as the high beam headlight bulb in the Chevrolet Volt for model years 2016-2019.
The 9012 is a single-filament enhanced halogen bulb with a PX22d base, rated at 12V and 55W. Despite its lower wattage relative to the 9005, the 9012 is classified as an enhanced halogen type, which typically indicates improved light output through advanced gas fill or filament design.
The 9012 bulb is specified for both the high beam and low beam headlight positions in the Volt for model years 2011-2015, making it the sole headlight bulb type required across both functions during that period.
The P20d base of the 9005 and the PX22d base of the 9012 are physically different connector types. These two bulbs are not interchangeable, despite sharing the same voltage rating and a broadly similar halogen construction.
The high beam headlight specification changed from the 9012 to the 9005 between the 2015 and 2016 model years, representing a shift to a higher-wattage bulb with a different base type for that function.
For model years 2016-2019, no low beam headlight bulb size is listed in the specifications, while the 2011-2015 Volt uses the 9012 for low beam positions.