Replace the front turn signal bulb on a 2016-2024 Hyundai Tucson by accessing the bulb housing from under the hood without removing the headlight assembly.

Warnings

Tools required

Parts

• Front turn signal bulb (amber) × 1 — 7440A or 7440NA (amber) bulb - verify owner's manual

Preparation

1. Park vehicle on level surface and turn off ignition
2. Allow engine and headlight assembly to cool if recently operated
3. Open and prop hood securely
4. Identify which side requires bulb replacement (driver or passenger)

Procedure

1. 1

   Locate turn signal bulb socket
   From under the hood, locate the rear of the headlight assembly on the affected side. The turn signal bulb socket is typically positioned at the outer edge of the headlight housing (closest to the fender). It will have a gray or black plastic connector with wiring harness attached.
2. 2

   Disconnect electrical connector
   Press the release tab on the electrical connector and pull it straight away from the bulb socket. Do not pull on the wires themselves. Set the connector aside where it won't fall into the engine bay.
3. 3

   Remove bulb socket from housing
   Rotate the bulb socket counterclockwise approximately 1/4 turn (90 degrees) until it releases from the locked position. Pull the socket straight out from the headlight housing. You may need to wiggle it gently if it resists.
4. 4

   Remove old bulb
   Press the bulb firmly into the socket while rotating counterclockwise, then pull the bulb straight out of the socket. The bulb uses a bayonet-style mounting with offset pins. Inspect the socket for any corrosion or damage.
5. 5

   Install new bulb
   Using a clean cloth or gloves, align the new bulb's offset pins with the socket grooves. Press the bulb into the socket and rotate clockwise until it locks into place. Verify the bulb is securely seated and does not move loosely.
6. 6

   Reinstall socket into housing
   Insert the bulb socket back into the headlight housing, aligning the tabs with the slots. Push it in fully and rotate clockwise 1/4 turn until it locks. The socket should sit flush against the housing and not rotate freely.
7. 7

   Reconnect electrical connector
   Push the electrical connector firmly onto the bulb socket until you hear or feel a distinct click. Gently tug on the connector to verify it is securely locked in place.

Reassembly

1. Ensure all wiring is routed away from hot engine components and moving parts
2. Verify the bulb socket is fully locked into the headlight housing

Verification

• Turn ignition to ON position without starting engine
• Activate turn signal on the replaced side and verify bulb illuminates with proper amber color
• Check that turn signal flashes at normal rate (not rapid flashing which indicates poor connection or wrong bulb)
• Test hazard lights to confirm both front turn signals function properly
• Visually inspect from outside vehicle that bulb brightness is consistent with opposite side

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