Hyundai Venue Turn Signal Bulb Size

Additional Notes

• The PY21W is the most frequently specified bulb across the Hyundai Venue turn signal positions, appearing in both front and rear applications across multiple model years. It follows the ECE standard used in Europe and worldwide markets, operates at 12V and 21W, uses a single filament, and seats into a BAU15s bayonet base. The offset pin arrangement of the BAU15s base prevents substitution with visually similar bayonet bulbs that use a straight BAY15d base.
• The 2357NA bulb, specified for the front turn signal on the 2020-2021 Venue, is an ANSI-standard dual-filament bulb rated at 12V with a high filament draw of 26.9W and a low filament draw of 8W. Its natural amber glass coating produces the required amber output without relying on a painted or tinted housing. It uses a BAY15d bayonet base, which is physically incompatible with the BAU15s base used by the PY21W.
• The front turn signal position on the Hyundai Venue changed bulb types between the 2021 and 2022 model years, shifting from the ANSI-standard 2357NA to the ECE-standard PY21W. These two bulbs use different base types and wattage ratings, making them non-interchangeable despite both producing amber light.
• The rear turn signal on the 2020-2021 Venue varies by headlamp configuration. Vehicles equipped with LED headlamps use the 12496, a specialty halogen bulb identified by a Philips/Osram part number rather than an ANSI or ECE designation. The 2020 model with halogen capsule headlamps uses the 3157, a dual-filament ANSI wedge bulb rated at 27W and 7W across its two filaments, while the 2021 model with halogen capsule headlamps uses the PY21W instead.
• The 921 bulb is specified exclusively for the rear turn signal on the 2024 Venue. It is an ANSI-standard single-filament wedge bulb in the T15 form factor, rated at 12V and 16W. This specification differs from the PY21W used in the same position on the 2022-2023 models, and the two bulbs are not interchangeable due to differences in base type and wattage.
• The 3157 bulb, used in the rear turn signal of the 2020 Venue with halogen capsule headlamps, is a dual-filament T25 wedge bulb operating at 12V. Its dual-filament design means it carries two independent circuits within a single envelope, a characteristic that must be matched when selecting a replacement to avoid circuit faults or incorrect signaling behavior.
• Several bulb types in these specifications share a 12V operating voltage, but wattage ratings differ considerably across positions and years. The 2357NA draws up to 26.9W on its high filament, the PY21W draws 21W, the 3157 draws up to 27W, the 921 draws 16W, and the 12496 carries no wattage value in the specification. Substituting a bulb with a mismatched wattage can affect load-dependent circuits, including hyperflash behavior in turn signal systems that monitor current draw.
• The 12496 is identified in the specifications by a manufacturer part number rather than an ANSI or ECE bulb code, indicating it falls outside the standard classification systems used for most automotive bulbs. This designation is associated with specialty or application-specific halogen constructions from Philips and Osram, and direct substitution using a standard-coded bulb may not be appropriate without confirming base type and electrical compatibility.