This procedure covers the replacement of a single headlight bulb (low beam or high beam) on a 2018-2024 Honda Accord with the 1.5L turbo engine.

Warnings

Tools required

Parts

• H11 halogen bulb (low beam) or 9005 halogen bulb (high beam) × 1 — Honda 33115-T2A-A01 (H11) or 33125-T2A-A01 (9005)

Preparation

1. Ensure the vehicle is parked on level ground with the engine off and cooled
2. Open the hood and secure it in the fully open position
3. Identify which bulb needs replacement: low beam (larger outer position) or high beam (smaller inner position)
4. Put on lint-free gloves or prepare a microfiber cloth to handle the new bulb

Procedure

1. 1

   Access the headlight bulb compartment
   Locate the bulb access cover on the rear of the headlight assembly in the engine bay. For the driver side, you may need to move wiring harnesses aside for better access. The access cover is a round rubber or plastic cover approximately 4-5 inches in diameter.
2. 2

   Remove the bulb access cover
   Rotate the access cover counterclockwise approximately 1/4 turn and pull it straight out from the headlight housing. Set the cover aside in a clean location where it won't collect dirt or debris.
3. 3

   Disconnect the bulb electrical connector
   Locate the electrical connector attached to the base of the bulb. Press the release tab on the connector and pull it straight off the bulb base. Do not pull on the wiring harness itself.
4. 4

   Remove the bulb retaining ring
   Identify the wire retaining clip that secures the bulb in the housing. Press the clip wire inward toward the bulb and rotate it counterclockwise to unhook it from the retaining slots. Swing the clip out of the way to release the bulb.
   Torque spec

   Bulb Retaining Ring5 Nm (4 lb-ft)
5. 5

   Remove the old bulb
   Carefully pull the old bulb straight out of the headlight housing. Note the orientation of the bulb tabs and keying to ensure correct installation of the replacement. Inspect the bulb socket for any corrosion, melting, or damage.
6. 6

   Install the new bulb
   Using a microfiber cloth or while wearing lint-free gloves, remove the new bulb from its packaging without touching the glass envelope. Align the bulb tabs with the slots in the headlight housing and insert it fully until it seats against the housing. Ensure the bulb is oriented correctly and seated completely.
7. 7

   Secure the bulb with the retaining ring
   Swing the wire retaining clip back over the bulb base. Press it inward and rotate clockwise to engage it in the retaining slots. Verify the clip is fully seated and holds the bulb firmly in place. The retaining ring should be snug with approximately 5.0 Nm of resistance when properly secured.
   Torque spec

   Bulb Retaining Ring5 Nm (4 lb-ft)
8. 8

   Reconnect the electrical connector
   Push the electrical connector firmly onto the bulb base until you hear or feel it click into place. Gently tug on the connector to verify it is locked onto the bulb terminals.
9. 9

   Reinstall the access cover
   Align the tabs on the access cover with the slots in the headlight housing. Push the cover in fully and rotate it clockwise approximately 1/4 turn until it locks into place. Ensure the cover is fully seated to maintain the weatherproof seal.

Reassembly

1. Ensure all wiring harnesses are returned to their original positions and not pinched or stressed
2. Verify the bulb access cover is fully seated and locked to prevent moisture intrusion

Verification

• Turn the ignition to ON position (engine does not need to be running)
• Turn on the headlights and verify the new bulb illuminates properly
• Check both low beam and high beam functions to ensure correct operation
• Verify there are no warning lights on the instrument cluster related to headlight malfunction
• Inspect for proper beam pattern and confirm there is no moisture visible inside the headlight lens

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