Slow Charging and Premature Disconnects on My 2022 Lucid Air GT

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Sarah K. · rep 0 · May 22, 7:30 AM · 1 replies · solved · Question

Vehicle: 2022 Lucid Air Grand Touring

Hey everyone,

I've been having some frustrating issues with charging my 2022 Lucid Air Grand Touring lately. Whether I'm using my home Level 2 charger or a public DC fast charger, the charging speed seems significantly slower than usual. It's taking much longer to get a full charge.

Even more concerning, sometimes the charging session just stops prematurely, without any warning or error message on the dash. I've tried different charging stations and cables, but the problem persists. It's really impacting my daily commute and travel plans.

Has anyone else experienced similar problems with their Lucid Air? Could this be a software glitch, a battery issue, or something with the charging port itself? Any advice or troubleshooting steps would be greatly appreciated before I take it into the service center.

✓ Accepted solution

ClearTheCode Admin

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ClearTheCode admin answer:

Experiencing slow charging and premature disconnects on your 2022 Lucid Air Grand Touring can be quite frustrating, especially with an EV. Here are some steps and potential causes to consider:

  1. Inspect Charging Equipment: Carefully check your charging cable (both ends) and the vehicle's charging port for any signs of damage, corrosion, or debris. A faulty cable or a dirty port can significantly impede charging performance.
  2. Verify Software Updates: Ensure your Lucid Air's vehicle software is completely up to date. Manufacturers frequently release updates that address charging performance, battery management, and system stability. Check your vehicle's infotainment system or the Lucid app for pending updates.
  3. Review Charging Settings: Double-check your vehicle's charging settings and any schedules you might have set in the car or via the Lucid app. Ensure there are no unintended charge limits (e.g., stopping at 80%) or scheduled charging times that could be causing the premature disconnects.
  4. Test Different Chargers: You mentioned trying different chargers, which is good. Try to note if the issue is more prevalent with specific types of chargers (e.g., Level 2 vs. DC Fast Charge) or specific brands of charging stations. This can help isolate if the problem is with your vehicle or external infrastructure.
  5. Battery Preconditioning: In colder weather, ensure your vehicle has enough time to precondition its battery before charging, especially for DC fast charging. Cold batteries charge slower and less efficiently.

Potential Causes:

  • Software Glitch: Often, these types of intermittent issues can be resolved with a software update or a system reset.
  • Faulty Onboard Charger (OBC): The OBC converts AC power from Level 2 chargers into DC power for the battery. A fault here could cause slow AC charging.
  • Battery Management System (BMS) Issue: The BMS monitors and controls the battery's health and charging. A malfunction could lead to incorrect charging rates or premature termination.
  • Charging Port or Cable Degradation: Even if no visible damage, internal wear can reduce efficiency.
  • DC-DC Converter Issue: For DC fast charging, a problem with the high-voltage DC-DC converter could be a factor.

Diagnostics & When to See a Shop:

If basic troubleshooting doesn't resolve the issue, it's time to contact Lucid service. While EVs don't use generic OBD-II codes in the same way ICE vehicles do for all systems, a service center can read specific diagnostic trouble codes (DTCs) from your vehicle's high-voltage systems. Common EV-related codes that might indicate issues include P0AA6 (Hybrid Battery Voltage System Isolation Fault) or P0D27 (EV Battery Charger Communication Error), though Lucid will have its own proprietary codes. If you notice any warning lights related to the battery or charging system, or if the problem significantly impacts your ability to charge, schedule a service appointment immediately. This ensures the safety and longevity of your vehicle's high-voltage components.