Kia Telluride Brake Bulb Size

The Kia Telluride brake light uses 1157 and P21/5W bulb sizes for the specific lighting components located at the rear of the vehicle. Data for the bulb specifications covers the range from 2021 through 2024.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

Bulb Size by Year Range

Years	Bulb Size
2021-2024	1157

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. 12V, 21W/5W.	1157

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Additional Notes

The Kia Telluride uses the 1157 bulb size across its 2021-2024 model years for the brake light position.
The 1157 is an ANSI-standardized bulb type, meaning its physical and electrical specifications conform to a defined North American standard recognized in both the United States and Canada.
This bulb type features a dual-filament design, which allows a single bulb to serve two distinct lighting functions within the same housing, typically a lower-intensity running light and a higher-intensity brake signal.
The 1157 operates on a 12-volt electrical system, consistent with the standard automotive voltage found in passenger vehicles.
Its two filaments are rated at 21 watts and 5 watts respectively, with the 21-watt filament producing the brighter output associated with active braking signals.
The bulb uses a BAY15d bayonet base, a two-pin offset base type where the two pins are positioned at different heights to ensure the bulb can only be inserted in the correct orientation, preventing filament misalignment.
The BAY15d base is a widely distributed automotive base type, meaning 1157 bulbs are broadly available as both conventional incandescent and LED retrofit units from numerous manufacturers.
When substituting an LED retrofit for the 1157 in the Kia Telluride, the replacement unit must also carry a BAY15d base with the same offset-pin configuration to seat correctly in the factory socket.