Hyundai Palisade Turn Signal Bulb Size

Additional Notes

• The Hyundai Palisade rear turn signal uses two distinct bulb standards across its production years: the 2357 (ANSI) and the PY21W (ECE). These standards are regionally defined, with ANSI applying to the US and Canada and ECE applying to Europe and worldwide markets.
• The 2357 bulb is a dual-filament type rated at 12V with a high/low wattage split of 26.9W and 8W. It uses a BAY15d bayonet base, which features two offset pins to prevent incorrect installation.
• The PY21W is a single-filament amber bulb rated at 12V and 21W. It uses a BAU15s bayonet base, where the single offset pin distinguishes it physically from other BAY15-family bases.
• The BAU15s base of the PY21W and the BAY15d base of the 2357 are not interchangeable. The pin offset angles differ between the two base types, meaning a bulb from one standard cannot be seated into a socket designed for the other.
• The Hyundai Palisade (2020-2023) uses the 2357 bulb for the rear turn signal, while the 2024 model year uses the PY21W.
• The 2357 is described as a brighter variant of the 1157 bulb. Both share the BAY15d base, but the 2357 draws more wattage on its primary filament, producing greater output.
• The 2020 Palisade rear turn signal fitment of the 2357 is specific to vehicles equipped with halogen capsule headlamps, indicating that headlamp type is a relevant variable for that model year.