In most 2011 Sonata models, the low-beam headlights use H11 bulbs and the high beams use 9005 bulbs, with fog lights typically using H11 as well. Some trims or markets offered HID headlights, which use a different setup. Always verify the exact bulb type in your owner's manual or by inspecting the bulb label on your car.
Bulbs by headlight function
Below is a quick breakdown of the standard bulb types used for the headlight functions on the majority of US-spec 2011 Sonatas.
- Low beam headlights: H11
- High beam headlights: 9005 (HB3)
- Fog lights (if equipped): H11
If your vehicle is equipped with HID or LED headlights, those systems do not use the same halogen bulbs and require different components. Confirm your exact setup to ensure you purchase the correct replacement.
Alternative configurations and how to verify
There can be regional or trim-based variations. Here’s how to confirm the exact bulb type for your car.
- Consult the owner’s manual or the headlight assembly label for the precise bulb specification.
- Compare the current bulb’s connector shape and size; H11 and 9005 use different sockets, helping identify the correct replacement.
- Look for any badges or documentation indicating HID or LED headlights, which indicate a non-halogen setup.
Having confirmed the configuration, you can source the correct bulb type and ensure safe, effective illumination. If your Sonata uses HID/LED headlights, bulb replacement may involve ballast or module considerations beyond standard halogen swaps.
How to replace headlight bulbs (step-by-step)
These steps describe replacing halogen bulbs in a typical 2011 Sonata. Replacement for HID/LED systems differs and may require professional service.
- Turn off the engine, set the parking brake, and let the headlights cool before touching any bulb.
- Open the hood and locate the back of the headlight assembly.
- Disconnect the electrical connector from the bulb, then remove any retaining clips or the bulb housing as needed.
- Carefully remove the old bulb from the socket.
- Handle the new bulb by its base or wear clean gloves; avoid touching the glass with bare fingers.
- Install the new bulb, reattach any clips, reconnect the electrical connector, and reassemble the housing.
- Test the headlights to confirm proper operation and alignment before driving.
Note: If your Sonata uses HID or LED headlights, do not substitute halogen bulbs. Replacement requires the correct ballast/module and may require a professional technician.
Summary
For most 2011 Hyundai Sonatas, the standard headlight configuration is H11 for low beams, 9005 for high beams, and H11 for fog lights. Always verify the exact bulb type for your trim and region by consulting the owner's manual or inspecting the bulb label, especially if your car has optional HID or LED headlights. Correct replacement helps maintain visibility and safety on the road.