What is the low beam headlight bulb size for a 2018 Hyundai Elantra?

The 2018 Hyundai Elantra uses a HID-D5S LED bulb for the low beam headlights. We recommend upgrading to LED for better visibility.

What is the high beam headlight bulb size for a 2018 Hyundai Elantra?

The high beam bulb size for the 2018 Hyundai Elantra is HID-D1S LED.

Why are my 2018 Hyundai Elantra headlights dim?

Dim headlights on a 2018 Hyundai Elantra can be caused by aging halogen bulbs, which lose brightness over time, or oxidation (cloudiness) on the plastic headlight lenses. Upgrading to a HID-D5S LED LED conversion kit can provide a significantly brighter and whiter light output.

Which bulb fits the 2018 Hyundai Elantra fog light?

The 2018 Hyundai Elantra uses a LED Fog Light bulb for the fog light position.

Is the 2018 Hyundai Elantra single or dual beam?

The 2018 Hyundai Elantra uses a dual bulb headlight system. This means you have separate bulbs for high and low beams.

Can I install LED bulbs on my 2018 Hyundai Elantra?

Yes, the 2018 Hyundai Elantra comes with standard halogen bulbs from the factory, but they can be upgraded to LED. You will need a HID-D5S LED LED conversion kit for the low beams.

Does the 2018 Hyundai Elantra have fog lights?

Yes, the 2018 Hyundai Elantra takes a LED Fog Light bulb for the fog light position.

How do I change the headlight on a 2018 Hyundai Elantra?

Turn off the vehicle and open the hood. Locate the headlight assembly from behind, remove the dust cover or retaining clip, disconnect the wiring harness, twist the old HID-D5S LED bulb counter-clockwise to remove it, then insert the new bulb and reassemble. The whole process typically takes 10 to 30 minutes per side depending on accessibility.

Are LED headlights legal for a 2018 Hyundai Elantra?

LED bulbs used off-road or in auxiliary lights are legal everywhere. For on-road headlight use, legality varies by state. Many states allow LED retrofits as long as the beam pattern meets DOT standards. For the best legal compliance, choose a DOT-approved HID-D5S LED LED kit that is designed as a direct replacement and produces a proper cutoff pattern without excessive glare.

How much does it cost to replace 2018 Hyundai Elantra headlights?

A pair of halogen HID-D5S LED bulbs costs $15 to $40, while LED conversion kits run $25 to $60 per pair. If you have a shop do the work, expect an additional $20 to $50 in labor per bulb. Replacing them yourself at home saves the labor cost and usually takes under 30 minutes.

What is the difference between halogen and LED for a 2018 Hyundai Elantra?

Halogen bulbs produce a warm yellow light (around 3200K), last 500 to 1000 hours, and draw more power. LED bulbs emit a brighter white light (5000-6000K), last 25,000+ hours, and use less energy. LED upgrades for the HID-D5S LED position are available as direct plug-and-play replacements.

This vehicle is part of the 2017–2018 Hyundai Elantra generation. All models in this range share identical light bulb sizes.

Fitment Guaranteed for 2018 Hyundai Elantra

What Size Bulbs Does a 2018 Hyundai Elantra Use?

Correct headlight, fog light, and tail light bulb sizes. Sourced from OEM catalog data.

Installation Difficulty

Moderate (Dust covers often present)

Est. Replacement Cost

$15 - $40 (Halogen) / $30+ (LED)

What Lighting System Does the 2018 Hyundai Elantra Have?

The 2018 Hyundai Elantra utilizes a refined lighting configuration featuring 12 distinct bulb positions. It features an extensive lighting system powered by a dual-bulb halogen configuration using separate HID-D5S LED low beam and HID-D1S LED high beam bulbs for precise light distribution. This model belongs to the late years of the Elantra's 1992-2020 production span.

Can You Put LED Bulbs in a 2018 Hyundai Elantra?

Upgrading to LED is one of the most effective ways to modernize your Hyundai's appearance and safety profile. We recommend starting your upgrade with the HID-D5S LED low beams, as they see the most use. Adding a matching HID-D1S LED LED kit later will complete the look and ensure consistent lighting performance. Don't forget the LED Fog Light fog lights; switching these to LED can dramatically improve your visibility in adverse weather.

2018 Hyundai Elantra Bulb Size Chart

Position	Bulb Size	Shop
Low Beam	HID-D5S LED	Buy HID-D5S LED →
High Beam	HID-D1S LED	Buy HID-D1S LED →
Fog Light	LED Fog Light	Buy LED Fog Light →
Brake Light	7506 LED	Buy 7506 LED →
Side Marker	168 LED	Buy 168 LED →
Turn Signal Front	2357NA LED	Buy 2357NA LED →
Turn Signal Rear	1156NA LED	Buy 1156NA LED →
Reverse Light	921	Buy 921 →
Dome Light	DE3175	Buy DE3175 →
License Plate	168	Buy 168 →
Parking Light	LED Bulb	Buy LED Bulb →
Trunk Light	6418	Buy 6418 →

Installation Guide

Open in YouTube →

Video suggestion: Installation GuideBy YouTube

Other Elantra Years

2020 2019 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992

More from Hyundai

Accent Azera Elantra GT Entourage Equus Excel Genesis Genesis Coupe

Other Vehicles That Use HID-D5S LED Bulbs

2019 Alfa Romeo 4C 2019 Alfa Romeo Giulia 2019 Audi A3 2019 Audi A4 2019 Audi A4 Allroad 2019 Audi A4 Quattro