The typical configuration in 2018 Hyundai Tucsons sold in North America uses H11 bulbs for the low beams, 9005 bulbs for the high beams, and H11 for standard fog lights. Some trims or regional variants may differ, so it’s best to verify with your owner’s manual or by inspecting the bulb on your specific vehicle.
This article explains the common bulb types used for the Tucson’s headlights, notes possible variations by trim or market, and offers practical guidance for identifying and replacing the bulbs correctly.
Bulb types by function
Below is a breakdown of the bulb types typically used for each lighting function on the 2018 Tucson.
Low beam
Before listing the standard low-beam option, note that most North American 2018 Tucson models use a dedicated halogen low-beam bulb.
- H11 halogen bulb (low beam)
In most configurations, the low beams rely on an H11 bulb, which is common for projector-style and reflector headlights on this model. Always confirm by checking the bulb you have removed or the owner’s manual for your exact trim.
High beam
High beams use a separate replacement bulb from the low beams in the typical setup.
- 9005 (HB3) bulb (high beam)
The 9005 high-beam bulb is standard for many 2018 Tucsons with halogen headlights. If your vehicle uses a different headlight system, consult the manual or dealer for the exact replacement.
Fog lights
Fog lights (where equipped) use a dedicated bulb type separate from the main headlamps.
- H11 bulb (fog light)
Most 2018 Tucson fogs are H11, though some regional or trim variations exist. Check your specific vehicle to be sure.
Variations by market and trim
Bulb configurations can vary based on the model year’s market (US, Canada, Europe, etc.) and the chosen trim level. While halogen headlights are common in many 2018 Tucsons, some trims or regional models may feature different systems such as HID or LED headlights.
Before buying replacements, verify the exact bulb type for your vehicle by one of these methods: consult the owner’s manual, inspect the bulb code on the existing bulb, or ask a Hyundai service center with your VIN.
- Most US/Canadian 2018 Tucson models: low beam H11, high beam 9005, fog light H11
- Trims or markets offering HID/LED headlights: other bulb configurations may apply (these often use non-replaceable LED units or HID ballast systems rather than standard replaceable halogen bulbs)
Understanding the precise configuration for your vehicle will help ensure you purchase the correct replacement bulbs and avoid fitment issues.
Practical tips for replacement and verification
To minimize mistakes when replacing bulbs, follow these practical steps.
- Check the owner’s manual or the bulb codes printed on the base of the current bulbs.
- Confirm the bulb type matches the function (low beam, high beam, fog) before buying.
- Consider the color temperature you want (e.g., around 4300K–4500K is common for halogen replacements) but ensure compatibility with your vehicle’s headlight housing.
- If in doubt, consult a Hyundai dealer or trusted automotive technician to confirm you have the correct bulb type for your exact trim and market.
Following these steps helps ensure you replace bulbs safely and maintain proper headlight performance.
Summary
For most 2018 Hyundai Tucsons in North America, the standard configuration uses H11 for low beams, 9005 for high beams, and H11 for fog lights. Variations exist by trim and market, so always verify with the owner’s manual or a professional if you’re unsure. Accurate identification ensures proper fit and reliable headlight performance.