Used for: Headlight Bulb High Beam and Low Beam(with HID headlights)
This 2018 Genesis G90 bulb size page is designed to help you verify the correct bulb type by lighting position, so you can quickly match the right replacement before ordering. Because the G90 was offered with different lighting setups, the exact bulb fitment can vary by trim, package, and market.
For the 2018 Genesis G90, many exterior and interior lamps use LED lighting, including the headlights, daytime running lights, tail lights, brake lights, turn signals, license plate lights, and cabin lights. Use the chart on this page to confirm the bulb location first, then compare your vehicle’s equipment to the listed fitment.
Fitment on the 2018 Genesis G90 can differ depending on trim level, lighting package, body style, and regional market, so it is smart to confirm what is installed on your car before buying replacements. Some versions use LED assemblies that are not serviced with a simple replaceable bulb, while others may use a specific bulb such as D1S for HID-equipped headlights. If you are considering an aftermarket LED conversion, make sure it is compatible with the housing and electrical system, since beam pattern, warning messages, and heat management can affect performance. The safest approach is to inspect the existing bulb or lamp assembly before purchase and compare the part type to the chart.
Yes. Most listed exterior and interior lighting positions on the 2018 Genesis G90 use LED lighting, including the headlights, brake lights, turn signals, tail lights, license plate lights, and cabin lamps.
Start by identifying the lighting position, such as low beam, rear turn signal, or dome light. Then match that position to the bulb type shown for the 2018 Genesis G90 on this page.
No. Headlight fitment can vary by equipment. Some G90 models use LED headlight systems, while HID-equipped versions use a D1S bulb for the high beam and low beam setup.
Check whether your vehicle has a serviceable bulb or a sealed LED lamp assembly. On many 2018 Genesis G90 applications, these rear lighting functions are LED-based, so the entire unit may not use a traditional replaceable bulb.
The chart lists the license plate light as LED. That means the lighting design may be an LED unit rather than a standard bulb, so verify the installed part before ordering anything.
Not always. The 2018 Genesis G90 lists separate front and rear turn signal positions, and each location should be checked individually because the lighting design can differ.
No. Even if they are all interior lights, each position should be matched by location. The dome light, map light, vanity mirror light, glove box light, and trunk light can use different LED modules or bulb styles.
If your car has LED headlights, the chart shows a headlight high beam and low beam listing for LED-equipped models. Confirm the exact headlight package on your vehicle before buying replacement parts.
For HID-equipped versions, the chart lists a headlight high beam and low beam bulb type of D1S. That is the key fitment to verify before purchase.
Sometimes, but not always. Aftermarket LED conversions can create fitment, beam pattern, or warning-light issues, especially in projector housings or monitored circuits. Check compatibility carefully before upgrading.
Because trim and lighting package differences can change the fitment. Looking at the installed bulb or lamp assembly is the best way to confirm whether your 2018 Genesis G90 uses a serviceable bulb, an LED module, or a specific HID bulb.
It covers the bulb positions and fitments listed for this page, but not every market variation. Since trim and lighting package can vary by region and body style, always compare your vehicle to the chart and the installed part.
