How to Replace Low Beam Headlamp Bulb on Kia Optima

In this tutorial, you will find instructions on how to replace the low beam headlight bulb on the Kia Optima model years 2016-2020. 

DIY Cost: $2-$15
Est. Time: 20 min
Difficulty: Intermediate


What you will need


  1. Open Hood - Pull on the hood, release under the dashboard, and open the hood. 

  2. Remove old light bulb - Locate the back of the headlight assembly that has the burned bulb. kia optima headlight bulb replacement


  3. First, you need to remove the light bulb cover. To remove this cover, twist it counterclockwise and remove it. Next, you need to remove the low beam bulb. Remove the bulb socket from the headlamp by turning it to replace change kia optima low beam light bulb 2011-2016
  4. Install new low beam light bulb - Remove the old bulb from the socket by pulling it. Press the new bulb into the socket. Align the tabs on the socket with the slots in the headlamp assembly and twist the socket to lock in in place. 

  5. Replace the headlight bulb cover - Install the headlamp cover by twisting it clockwise. low beam bulb replacement guide kia optima 2012 213 2014 2015
  6. Close the hood and test the headlights. 

Only one headlight works

It is possible that even after replacing the bulb, the headlight doesn't work. Common problems that cause this issue include:

  • Damaged wiring inside the headlight unit.
  • Damaged wiring harness taking power to the headlight.
  • A corroded connector at the headlight
  • Blown fuse

Use a digital multimeter to check the voltage at the headlight connector.

Unplug the wire harness from the headlight. Identify the wires that provide power to the burned bulb. The negative wire will be either black or brown. The positive you will have to find out. Set your digital multimeter to voltage, turn on the headlight, and measure.

Visitor, January 3, 2017
The problem with the low beams being out but not the high beams is a wiring issue that I'm having to most of the time it's not the bulb. And to replace the driver side headlight you need to take out the battery no other way
Visitor, January 3, 2017
I'm dealing with The Exact Situation Rite Now. SMH. Ever find out what the Problem was??
Visitor, January 3, 2017
Thank you so much! Hubby doesn't do anything for my car.
Visitor, January 3, 2017
This video shows how to replace the bulb on the passengers side (easy one). I need to replace the bulb on the drivers side. This looks impossible to do yourself. There's about 1.5” of room between it and the battery. Any ideas on how to do the drivers side yourself???? Thanks.
Visitor, January 3, 2017
This does not seem to apply to Optima SXL.. The bulb does not come out of the assembly. Going to take it to the dealer.
Visitor, January 3, 2017
Did anyone figure this out?
Visitor, January 3, 2017
On a 2016 KIA Optima Hybrid there's very little space to change the bulb
Visitor, January 3, 2017
My lowbeam is out but not the high beam. Replaced the bulb but it still doesn't work
Visitor, January 3, 2017
Remove the battery from the drivers' side. This allows more space to turn the cover and replace.
Visitor, January 3, 2017
The low beam light was out on my Kia optima. It looks very easy to replace so I will try this on the weekend. Thanks for the video.
Visitor, September 11, 2020

Go in from underneath, by gently pulling away the splash guard for the driver side front tire. Plenty of room underneath.