Typically, the 2012 Hyundai Sonata uses H11 bulbs for the low beams and 9005 bulbs for the high beams. If your car is equipped with HID headlights, those use HID bulbs with a ballast rather than standard halogen bulbs.
Bulb types by lighting function
Most commonly, the following bulb sizes apply to the US-spec 2012 Sonata. Variations may occur by trim or market; verify before purchasing.
- Low beam: H11 halogen bulb (projector or reflector depending on trim). Some HID-equipped cars do not use an H11 for low beam; they rely on HID with a ballast.
- High beam: 9005 (HB5) halogen bulb.
- Fog lights: Often H11 on many trims, but certain markets use different sizes.
Because bulb configurations can vary by trim level and region, consult the owner's manual or the driver’s door jamb label to confirm the exact bulb sizes for your car.
Trim and market variations
In some markets and on some trims, the Sonata’s headlights may rely on HID or LED setups rather than halogen H11/9005. If in doubt, a Hyundai dealership or an auto parts retailer can confirm the exact bulb type for your vehicle.
How to verify the exact bulb type on your car
Follow these steps to ensure you purchase the correct bulbs for your 2012 Sonata:
- Consult the owner’s manual for the bulb specifications for low/high beams and fog lights.
- Check the label on the driver’s door jamb, which often lists required bulb sizes.
- If needed, remove the existing bulb to read its markings or bring the bulb to an auto parts store for a precise match.
Tip: Replacing bulbs in pairs helps maintain even illumination and color temperature. If upgrading to LEDs or HID, ensure compatibility with the vehicle’s electrical system and regulations in your area.
Summary: For most 2012 Hyundai Sonatas, the standard halogen configuration uses H11 for low beams and 9005 for high beams. HID-equipped versions use ballast-driven HID bulbs rather than halogen, and fog light sizes can vary by market. Always verify with the manual or door jamb label for your exact trim and region.