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2021 Polestar 2 Charging Fault - Stops Unexpectedly

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Ryan M. · rep 0 · May 22, 7:50 AM · 1 replies · solved · Question

Vehicle: 2021 Polestar 2 Long Range Dual Motor

Hey everyone,

My 2021 Polestar 2 Long Range Dual Motor has been acting up lately. When I plug it in, especially at public DC fast chargers, it often starts charging fine but then stops abruptly after 10-20 minutes. I get a generic "Charging Fault" message on the dashboard, and sometimes the charging station also reports an error.

It's not just public chargers; sometimes it happens at home on my Level 2 charger too, but less frequently. It's really frustrating, especially when I'm on a road trip and relying on those fast chargers. I've tried unplugging and replugging, but the issue often recurs.

What could be causing this? Is there a common issue with the charging system in these cars? Any advice or similar experiences would be greatly appreciated!

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 22, 7:50 AM

0

ClearTheCode admin answer:

Experiencing intermittent charging faults on your Polestar 2 can be frustrating, especially given the reliance on reliable charging for EV ownership. Here are steps to diagnose and potential causes:

  1. Inspect Charging Cables and Port:

    • Thoroughly check both your home Level 2 cable and any public charging cables you use for signs of damage, fraying, or bent/corroded pins. A faulty cable is a common culprit for charging interruptions.
    • Ensure the vehicle's charging port is clean and free of debris, dust, or moisture. A poor physical connection can trigger fault codes.

  2. Restart Infotainment System and Check Software:

    • Sometimes, a software glitch can interfere with charging communication. Try restarting your Polestar 2's infotainment system (hold the home button on the center display for about 20 seconds until the Polestar logo appears). Then, attempt charging again.
    • Verify that your vehicle's software is up to date. Polestar frequently releases updates that can address known bugs, including those related to charging stability.

  3. Consider the 12V Battery:

    • While the main high-voltage battery powers the car, the 12V auxiliary battery manages many critical control systems, including the charging communication protocols. A weak or failing 12V battery can cause a myriad of seemingly unrelated electrical issues, including intermittent charging faults. If you notice other minor electrical quirks, this could be a contributing factor.

  4. Diagnostic Trouble Codes (DTCs):

    • When a "Charging Fault" message appears, the vehicle's onboard computer typically stores specific diagnostic trouble codes. While a generic OBD-II scanner might show some basic powertrain codes, EV charging system issues often generate manufacturer-specific codes. Common codes related to charging system performance or communication might include:
      • P0D26: DC Charging System Performance
      • P0D27: DC Charging System Communication Error
      • P0D28: DC Charging System Voltage Out of Range
      • P0D29: DC Charging System Current Out of Range
      • P0D30: DC Charging System Temperature Sensor Circuit
    • These codes point to issues with the onboard charger, battery management system, or high-voltage contactors.

  5. When to See a Shop:

    • If the issue persists after checking cables, restarting the infotainment, and ensuring software is updated, it's imperative to schedule a service appointment with a Polestar authorized service center.
    • This problem could indicate a more serious underlying issue with the Onboard Charger (OBC), the DC-DC converter, the High Voltage Battery Management System (BMS), or even the high-voltage battery itself. These components require specialized diagnostic tools and expertise to safely diagnose and repair.
    • Continuing to experience charging faults can not only leave you stranded but could potentially lead to further damage to the vehicle's complex electrical systems over time. Do not delay professional inspection.
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