The Hyundai Accent brake light uses P21/5W, 2357, and 1157 bulb sizes depending on the specific version of the vehicle. Data for the bulb sizes covers the range from 1995 to 2022.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The 1157 bulb is a dual-filament type with a BAY15d bayonet base, rated at 12V with filaments drawing 21W and 5W respectively. It serves the brake light position on the Hyundai Accent across the 1995-1997, 2003-2005, and 2021-2022 model years.
The 2357 bulb shares the same BAY15d bayonet base as the 1157 but operates at higher wattages of 26.9W and 8W, making it the brighter of the two dual-filament types listed. It fits the brake light position on the 1998-1999 model years unconditionally, and on the 2019-2020 model years only on vehicles without projector headlamps.
Although the 1157 and 2357 share the same BAY15d base, they are not interchangeable without consideration of wattage differences. The 2357 draws notably more power on both filaments, which can affect compatibility with a vehicle's electrical system.
The center high mount stop light on the Hyundai Accent uses two distinct bulb types across its listed model years. The 921 wedge bulb (T15) at 12V and 16W covers the 1995-1996, 2003-2005, and 2019-2022 model years, while the 1156 covers 1997-1999.
The 1156 bulb used in the 1997-1999 center high mount stop light position is a single-filament type with a BA15s bayonet base, rated at 12V and 21W. Its base type differs from the BAY15d base found on the 1157 and 2357, making cross-substitution between these groups physically incompatible.
The 921 wedge bulb uses a T15 wedge base rather than a bayonet fitting, placing it in a physically distinct category from all other bulb types listed for the Accent's brake lighting positions.
All four bulb types listed across both brake lighting positions conform to ANSI standards applicable in the United States and Canada, indicating standardized electrical and physical specifications within those markets.
The 2019-2020 brake light fitment specifying the 2357 only for vehicles without projector headlamps indicates that the headlamp configuration on the Hyundai Accent influences which brake bulb size applies for those model years.