In most 2017 Optima models with standard halogen headlights, the low-beam bulb is H11 and the high-beam bulb is 9005. Fog lights, when equipped, typically use H11 as well.
The 2017 Optima line features several headlight configurations depending on trim and options. While base and mid-level trims commonly use halogen projector lamps, some higher-end trims offered HID or LED headlights, which do not use H11 or 9005 bulbs. To be sure, check the owner’s manual, the bulb label on current bulbs, or a VIN-specific parts lookup from Kia’s official site.
Standard halogen setup by function
The following breakdown covers the common halogen configuration for the 2017 Optima, noting that variations may exist with different packages or regional specifications.
- Low-beam: H11 bulbs
- High-beam: 9005 bulbs
- Fog lights: H11 bulbs (where the vehicle is equipped with fog lamps)
In typical halogen configurations, these bulb types are what you’ll replace when performing routine maintenance.
How to verify and replace
Follow these steps to confirm your exact bulb types and complete a safe replacement, especially if you’re unsure whether your model uses halogen, HID, or LED headlights.
- Check the owner’s manual or the under-hood label near the headlight assembly for bulb specifications.
- Inspect the bulb you remove for a stamped code (e.g., H11, 9005) to match replacements.
- If your Optima has HID or LED headlights, note that these systems require ballast-wired or module-based replacements, not standard H11/9005 bulbs.
- When replacing, handle bulbs with clean gloves or a cloth to avoid skin oils on the glass, which can shorten bulb life.
- Test lights after replacement and reset any headlight aim if necessary according to the manual or service guide.
For those upgrading to LED daytime running lights or HID options, consult a professional installer to ensure electrical compatibility and beam pattern compliance.
Trim-specific notes
Specification may vary by market and trim. Some 2017 Optima configurations may have factory HID (high-intensity discharge) or LED headlights, which use different bulb types or integrated modules rather than replaceable halogen bulbs. If your vehicle is not showing H11/9005 bulbs in the headlamp assembly, verify with Kia’s parts catalog using your VIN.
Note on market variations
Headlight configurations can vary by country and trim level. If you’re unsure, consult Kia’s official parts lookup for your VIN or contact a Kia dealership service department for confirmation.
Summary
Most 2017 Kia Optima models with standard halogen headlights use H11 for low beams and 9005 for high beams, with H11 commonly used for fog lights where equipped. Always verify with the owner’s manual or a VIN-specific parts lookup, especially if your car has HID or LED headlights, since those configurations use different bulbs or modules.