2025 Lucid Gravity headlights flickering or not turning on

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Mike T. · rep 0 · May 25, 5:17 AM · 1 replies · solved · Question

Vehicle: 2025 Lucid Gravity Touring

I recently took delivery of my 2025 Lucid Gravity, and I'm already having issues with the headlights. Sometimes when I start the car, one or both headlights won't turn on, or they'll flicker intermittently while driving. I've also noticed an error message on the dash saying 'Check Headlight System.'

It's a brand new vehicle, and this is a major safety concern, especially driving at night. I've tried turning the lights off and on again, but the problem persists. Is this a common issue with Lucid's LED lighting systems, or could it be a wiring problem? Any advice on what I should check before taking it to the dealer?

✓ Accepted solution

ClearTheCode Admin

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ClearTheCode admin answer:

Headlight malfunctions, especially flickering or failure to illuminate, are significant safety concerns for any vehicle, particularly a new one like your 2025 Lucid Gravity. Modern LED lighting systems are complex and integrated with the vehicle's electrical network.

  1. Initial Observations:

    • Note Specifics: Pay attention to whether it's always the same headlight, if it happens only in certain conditions (e.g., cold weather, after rain), or if it's completely random. This information will be valuable for diagnostics.
    • Check for Obvious Damage: Although it's a new vehicle, quickly inspect the headlight assembly for any visible cracks, moisture inside the lens, or loose connections (if accessible).
  2. Potential Causes:

    • Faulty LED Module/Headlight Assembly: Individual LED elements or the entire headlight assembly can have manufacturing defects, leading to flickering or complete failure. This is often the case with new vehicles.
    • Loose or Corroded Wiring: A loose connection in the wiring harness leading to the headlight or within the headlight assembly itself can cause intermittent power delivery, resulting in flickering or failure.
    • Headlight Control Module (HCM) Malfunction: Modern LED headlights are often controlled by a dedicated module that regulates power and manages functions like adaptive lighting. A faulty HCM can cause erratic behavior.
    • Software Glitch: Less common for direct flickering, but software issues could cause the system to incorrectly command the lights or fail to activate them properly.
    • Grounding Issue: A poor ground connection to the headlight or its control module can lead to insufficient power and flickering.
  3. Relevant OBD Codes (often body control module related):

    • B1000: Headlight Control Module Malfunction (generic, but indicates an issue with the HCM)
    • B1001: Left Headlight Circuit Malfunction
    • B1002: Right Headlight Circuit Malfunction
    • U0140: Lost Communication With Body Control Module (if the BCM isn't communicating with the headlight system).

When to See a Shop: Given that this is a brand new vehicle and a critical safety component, your best and safest course of action is to immediately schedule a service appointment with a Lucid service center. Do not attempt to diagnose or repair this yourself, as it could void your warranty or lead to further electrical issues. The 'Check Headlight System' message confirms a fault that requires professional attention and specialized diagnostic equipment to pinpoint and resolve.