How to Replace Both Headlight Bulbs on a 2016-2021 Hyundai Tucson
Step-by-step H7 low-beam bulb replacement guide with tools, parts, and safety tips
How to Replace Both Headlight Bulbs on a 2016-2021 Hyundai Tucson
Step-by-step H7 low-beam bulb replacement guide with tools, parts, and safety tips for 2016, 2017, 2018, 2019, 2020, 2021
🔧 Tucson - Headlight Bulb Replacement
Replacing both low-beam headlight bulbs on your Tucson is a beginner-friendly repair. The bulbs are accessed from behind each headlight housing in the engine bay, so no bumper removal is normally needed.
Difficulty Level: Beginner | Estimated Time: 20-40 minutes
⚠️ Safety & Precautions
- ⚠️ Turn the headlights and ignition off before starting.
- ⚠️ Let the bulbs cool for at least 10 minutes if the lights were recently on.
- ⚠️ Do not touch the glass part of the new halogen bulbs with bare fingers. Oil from your skin can shorten bulb life.
- ⚠️ Battery disconnect is not required, but keep the ignition off during the repair.
- ⚠️ Replace both low-beam bulbs together so the light color and brightness match.
🔧 Required Tools
You'll need the following tools for this repair:
- Nitrile gloves
- Safety glasses
- Clean microfiber towel
- Flashlight
🔩 Required Parts
HowToo sells all the parts you need for this repair:
- Low-beam headlight bulbs H7 halogen - Qty: 2
📋 Before You Begin
- 🅿️ Park your Tucson on level ground and set the parking brake.
- 🔆 Turn the headlight switch to OFF.
- 🧤 Put on nitrile gloves before handling the new bulbs.
- 💡 A halogen bulb is a standard headlight bulb with a small glass capsule that gets very hot during use.
- 📌 Assumption: this procedure is for the standard halogen low-beam headlight bulbs on the SE trim.
🔨 Step-by-Step Instructions
Follow these steps in order:
Step 1: Open the Hood
- Use your hand to pull the interior hood release lever.
- Use your fingers to release the safety latch at the front of the hood.
- Lift the hood and secure it with the hood prop rod.
- Use a flashlight to look behind each headlight housing.
Step 2: Find the Low-Beam Bulb Cover
- Use a flashlight to locate the round dust cover on the back of the headlight housing.
- The low-beam bulb is behind this rear cover.
- A dust cover is a round plastic cap that keeps water and dirt out of the headlight housing.
- Work on one side at a time.
Step 3: Remove the Rear Dust Cover
- Use your hand to rotate the dust cover counterclockwise.
- Pull the dust cover straight off and place it on a clean microfiber towel.
- No torque spec is used here because the cover is hand-tightened only.
Step 4: Disconnect the Bulb Electrical Connector
- Use your fingers to grip the electrical connector at the rear of the bulb.
- Pull the connector straight back off the bulb.
- Do not pull on the wires themselves.
- An electrical connector is the plastic plug that supplies power to the bulb.
Step 5: Release the Bulb Retainer
- Use your fingers to press the metal spring clip inward and move it away from the bulb.
- The spring clip is the small wire retainer that holds the bulb tightly in place.
- Swing the clip open carefully so the bulb can come out.
- Take a photo before removal.
Step 6: Remove the Old Bulb
- Use your gloved hand to pull the old H7 bulb straight out of the headlight housing.
- Notice the position of the bulb tab before removing it fully.
- Do not force the bulb. It should slide out once the clip is released.
Step 7: Install the New Bulb
- Use nitrile gloves to handle the new H7 bulb by the metal base only.
- Place the new bulb into the headlight housing in the same orientation as the old bulb.
- Make sure the bulb sits flat and fully seated.
- If you accidentally touch the glass, use a clean microfiber towel to wipe it gently before installing.
Step 8: Secure the Bulb Retainer
- Use your fingers to swing the metal spring clip back over the bulb base.
- Press the clip inward and lock it into its catch.
- The bulb should not wiggle once the clip is locked.
Step 9: Reconnect the Electrical Connector
- Use your hand to push the electrical connector straight onto the bulb terminals.
- Push until it is fully seated and snug.
- Do not bend the bulb terminals.
Step 10: Reinstall the Rear Dust Cover
- Use your hand to position the dust cover on the rear of the headlight housing.
- Turn the cover clockwise until it locks in place.
- Do not cross-thread or leave the cover loose, because moisture can enter the housing.
- Hand-tight only; no torque spec is used.
Step 11: Repeat on the Other Side
- Use the same steps and flashlight on the opposite headlight.
- Remove the dust cover, unplug the connector, release the spring clip, replace the bulb, reconnect it, and reinstall the cover.
- Replace both bulbs in pairs for even brightness.
Step 12: Test the Headlights
- Use your hand to turn the headlight switch to ON.
- Check both low beams from the front of your Tucson.
- Switch to high beams briefly to confirm the correct bulbs were replaced and the lighting operates normally.
✅ After Repair
- ✅ Confirm both low beams turn on and have similar brightness.
- ✅ Check that both rear dust covers are fully seated.
- ✅ Look at the beam pattern against a wall from about 25 feet away. Both lights should be level and even.
- ✅ If one bulb does not turn on, switch the headlight off and recheck the connector seating.
- ✅ No scan tool, coding, or infotainment reset is required for this repair.
💰 DIY vs Shop Cost
Shop Cost: $80-$180 (parts + labor)
DIY Cost: $25-$70 (parts only)
You Save: $55-$110 by doing it yourself!
Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 0.3-0.6 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.
Guide for Headlight Bulb replace for these Hyundai vehicles
| Year Make Model | Sub Model | Engine | Body Style |
|---|---|---|---|
| 2021 Hyundai Tucson | - | - | - |
| 2020 Hyundai Tucson | - | - | - |
| 2019 Hyundai Tucson | - | - | - |
| 2018 Hyundai Tucson | - | - | - |
| 2017 Hyundai Tucson | - | - | - |
| 2016 Hyundai Tucson | - | - | - |

















