How to Replace Low & High Beam Headlight Bulbs on a 2018 Kia Forte (Both Sides)
Step-by-step DIY instructions with tools/parts list, safety tips, and post-install checks for 2017, 2018, 2019, 2020, 2021, 2022
How to Replace Low & High Beam Headlight Bulbs on a 2018 Kia Forte (Both Sides)
Step-by-step DIY instructions with tools/parts list, safety tips, and post-install checks for 2017, 2018, 2019, 2020, 2021, 2022
đź”§ Forte - Headlight Bulb Replacement
On your Forte, “headlight bulb” can mean the low beam (normal nighttime driving) or the high beam (brights). The steps and bulb type can differ, so I need one quick detail to keep this accurate and avoid you buying the wrong bulbs.
Difficulty Level: Beginner | Estimated Time: 0.5-1.0 hours
Quick questions (reply with A/B):
A) Are you replacing low beams, high beams, or both?
B) Are you doing both sides (left + right), or just the burned-out side?
⚠️ Safety & Precautions
- ⚠️ Turn the lights OFF and let bulbs cool before touching them.
- ⚠️ Do not touch the new bulb’s glass with bare fingers; skin oil can shorten bulb life.
- ⚠️ Support the hood securely; keep tools clear of the cooling fan area.
- ⚠️ Battery disconnect is not required for this job, but keep the headlight switch OFF.
đź”§ Required Tools
You'll need the following tools for this repair:
- Nitrile gloves
- Safety glasses
- Small flashlight
- Trim clip removal tool
- 10mm socket
- 1/4" ratchet
- 6" extension
🔩 Required Parts
HowToo sells all the parts you need for this repair:
- Headlight bulb (low beam) - Qty: 2
- Headlight bulb (high beam) - Qty: 2
- Dielectric grease - Qty: 1
đź“‹ Before You Begin
- Park on level ground, shift to Park, and turn the engine OFF.
- Open the hood and make sure the headlight switch is OFF.
- Decide which bulbs you’re changing: low beam, high beam, or both (your reply to A).
- Tip: Replace bulbs in pairs for matching color.
🔨 Step-by-Step Instructions
Follow these steps in order:
Step 1: Confirm which bulb you’re accessing
- Use a small flashlight to look behind the headlight housing.
- You’ll see separate rear covers/sockets for low beam and high beam.
- If you’re unsure which is which, reply to my A/B questions above and tell me which light is out.
Step 2: Create working room (if needed)
- If access is tight, remove the nearby air duct/covering.
- Use a trim clip removal tool to pop up plastic push-clips.
- Use a 10mm socket, 1/4" ratchet, and 6" extension to remove any 10mm bolts holding the snorkel/duct.
- Set clips/bolts aside in a small pile so they don’t get lost.
Step 3: Disconnect the bulb electrical connector
- Press the connector lock tab with your fingers and pull the connector straight back.
- If it’s stuck, wiggle gently—do not pull on the wires.
Step 4: Remove the old bulb
- Put on nitrile gloves and safety glasses.
- Twist the bulb socket counterclockwise about a quarter turn, then pull it straight out.
- Take the bulb out and read the type printed on the base (for example, it will be stamped/printed on the plastic).
Step 5: Install the new bulb
- With nitrile gloves on, insert the new bulb into the housing the same way the old one came out.
- Make sure the bulb seats fully, then twist clockwise to lock.
- Apply a tiny amount of dielectric grease to the connector seal (not the bulb glass), then reconnect the electrical connector until it clicks.
Step 6: Repeat for the other side and/or the other beam
- Repeat Steps 2–5 on the opposite headlight if you’re doing both sides.
- If you’re replacing both low and high beams, repeat on the other bulb location in the same housing.
Step 7: Reinstall any ducts/covers you removed
- Reinstall components using the 10mm socket, 1/4" ratchet, and 6" extension.
- Reinstall push-clips using the trim clip removal tool and your fingers.
âś… After Repair
- Turn headlights ON and verify low beams work on both sides.
- Turn high beams ON and verify both sides work.
- If a new bulb doesn’t light, turn lights OFF and re-check the connector is fully seated.
đź’° DIY vs Shop Cost
Shop Cost: $120-$250 (parts + labor)
DIY Cost: $30-$120 (parts only, depends on bulb type/brand)
You Save: $90-$130 by doing it yourself!
Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 0.5-1.0 hours.
🎯 Ready to get started?
HowToo makes it easy: same-day/2-day shipping on every part, plus all the tools and specialty tools you need! Check out the parts and tools sections below to add everything to your cart.


















