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Lucid Air Grand Touring Charging Issues: Stuck at 80% or Very Slow

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Sarah K. · rep 0 · May 22, 7:33 AM · 1 replies · solved · Question

Vehicle: 2023 Lucid Air Grand Touring

Hey everyone, hoping someone here has experienced this. I have a 2023 Lucid Air Grand Touring, and lately, I've been having some really frustrating charging problems.

For the past week or so, my Air either refuses to charge past 80% on my home Level 2 charger, or it charges incredibly slowly, taking hours longer than it should for even a small top-up. Sometimes I even get a 'Charging Fault' message on the display, but it's intermittent.

I've tried restarting the car, unplugging and replugging the charger, and even trying a different public Level 2 charger, but the issue persists. It's really impacting my daily commute planning. Has anyone else seen this with their Lucid Air, especially a newer model? Any ideas what might be going on?

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 22, 7:33 AM

0

ClearTheCode admin answer:

Experiencing charging issues like being stuck at 80% or extremely slow charging on your 2023 Lucid Air Grand Touring can be concerning. This often points to an issue within the vehicle's charging system or its communication with the Electric Vehicle Supply Equipment (EVSE).

Potential Causes:

  • Battery Management System (BMS) Calibration: The BMS might be miscalibrated, leading to inaccurate state-of-charge readings or prematurely terminating charging to protect the battery, even if it's not fully charged.
  • Charging Port/Cable Issue: Damage, debris, or corrosion in the vehicle's charging port, or a faulty charging cable (either your personal one or the public charger's) can restrict current flow or communication.
  • EVSE (Electric Vehicle Supply Equipment) Fault: Your home charger itself might be malfunctioning, providing inconsistent power, or sending faulty communication signals to the vehicle.
  • Software Glitch: A temporary software bug in the vehicle's charging control module can sometimes cause erratic charging behavior.
  • 12V Battery Health: The 12V auxiliary battery, which powers critical control modules, can sometimes cause unexpected charging behavior if it's weak or failing.
  • Thermal Management: If the high-voltage battery pack is too hot or too cold, the BMS might intentionally limit charging speed or capacity to protect the battery.

Diagnostics (OBD Codes):

While specific Lucid diagnostic tools are often needed for precise fault isolation, generic OBD-II scanners might reveal codes related to charging system faults. Look for codes in the P0AAx, P0Bxx, or P0Cxx ranges, which are often associated with hybrid/EV battery systems. Examples include:

  • P0AA6: Hybrid Battery Voltage System Isolation Fault
  • P0C2D: Drive Motor 'A' Inverter Voltage Sensor Circuit Range/Performance
  • P0D26: EVSE Communication Circuit Malfunction

When to See a Shop:

  1. Inspect Charging Cable and Port: First, ensure your charging cable is fully seated and inspect the vehicle's charging port for any visible damage, bent pins, or debris. Try a different cable if possible.
  2. Restart Vehicle and EVSE: Perform a full vehicle shutdown and restart. Also, try resetting your home EVSE (unplug it from the wall for a minute if possible, or flip its dedicated circuit breaker).
  3. Test Different Chargers: Attempt to charge at several different public Level 2 and, if accessible, DC fast chargers. This helps isolate whether the issue is with your home EVSE or the vehicle itself.
  4. Monitor Battery Temperature: If your vehicle's display or a third-party app provides battery temperature readings, check if the battery is unusually hot or cold during charging attempts.
  5. Schedule Service: If the problem persists after these initial troubleshooting steps, especially if you're consistently getting "Charging Fault" messages or experiencing significant charging limitations, it's crucial to schedule an appointment with a Lucid service center. This could indicate a more serious issue with the battery management system, onboard charger, or the high-voltage battery itself, requiring specialized diagnostic equipment. Do not ignore persistent charging faults, as they can impact battery health, vehicle performance, and safety.
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