Hyundai Elantra Coupe front turn signal bulbs use 2357NA size while rear turn signal bulbs use 1156NA size. Replacement chart covers 2013 to 2014 vehicle production years with corresponding bulb specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Hyundai Elantra Coupe uses two distinct turn signal bulb types across its front and rear positions for the 2013-2014 model years: the 2357NA at the front and the 1156NA at the rear.
The 2357NA is a dual-filament bulb operating at 12V with a wattage split of 26.9W and 8W across its two filaments, which allows it to serve both a primary and a secondary lighting function within a single housing.
The 1156NA is a single-filament bulb rated at 12V and 21W, dedicated solely to one lighting function, which reflects its role as a standalone rear turn signal source.
Both bulb types carry the NA designation, indicating natural amber glass rather than a clear envelope with an amber-coated or amber-reflector housing, a distinction that affects color output at the glass level itself.
The 2357NA uses a BAY15d bayonet base, which is an offset dual-contact base. The pin offset prevents incorrect insertion of a single-filament bulb into a dual-filament socket, making the base type a built-in fitment safeguard.
The 1156NA uses a BA15s bayonet base, a single-contact base that is physically incompatible with the BAY15d socket, meaning the front and rear bulbs of the Elantra Coupe are not interchangeable despite sharing the same voltage rating and amber glass type.
Both bulb types conform to ANSI standards applicable in the United States and Canada, placing them within a standardized sizing and performance classification system used across a wide range of North American vehicle applications.