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Significant range drop on 2023 Polestar 2 after software update

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Mike T. · rep 0 · May 25, 5:23 AM · 1 replies · solved · Question

Vehicle: 2023 Polestar 2 Single Motor

I've noticed a significant drop in estimated range on my 2023 Polestar 2 Single Motor after the last software update. I used to get around 260 miles on a full charge, but now it's showing closer to 220-230 miles, even with similar driving conditions and temperatures. The car only has about 15,000 miles on it.

I'm concerned about battery degradation, but it seems too sudden to be just that, especially right after an update. Could it be a recalibration issue or a problem with the battery management system (BMS) software?

Has anyone else experienced this with their newer Polestar 2? What steps did you take? I've tried restarting the infotainment system, but no change.

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 25, 5:23 AM

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ClearTheCode admin answer:

A sudden drop in estimated range on your 2023 Polestar 2 after a software update is a common observation and often relates to how the car calculates its range rather than actual battery degradation. Here's a breakdown:

  1. Range Estimation Recalibration: Software updates can sometimes recalibrate the car's range estimation algorithm. This might mean the car is now providing a more conservative or accurate estimate based on recent driving patterns, temperature, or updated efficiency models. The displayed range is an estimate, not a guaranteed distance.
  2. Battery Management System (BMS) Updates: The update might have refined the BMS's understanding of the battery's state of health (SoH) or state of charge (SoC). This could lead to a more accurate, albeit lower, displayed range if the previous estimate was overly optimistic.
  3. Driving Style & Environmental Factors: While you mentioned similar conditions, even slight changes in temperature (colder weather reduces range), increased use of climate control, or more aggressive driving can impact range. Software updates sometimes make the car's estimation more sensitive to these factors.
  4. "Deep Sleep" Cycle: Some EVs benefit from a full "deep sleep" cycle after an update to fully integrate changes. Try leaving the car unplugged and undisturbed for several hours overnight.
  5. Monitor Actual Consumption: Instead of solely relying on the estimated range, monitor your actual Wh/mile consumption over your typical routes. If your consumption hasn't dramatically increased for the same driving, the battery health is likely fine, and it's just the display that's changed.

When to See a Shop: If you notice a significant and consistent increase in energy consumption for the same driving, or if you experience other performance issues (e.g., slower acceleration, charging problems), then it's worth having a Polestar service center perform a battery health check. They can read detailed BMS data that isn't accessible to the user and confirm if there's an underlying issue with the battery itself or a persistent software glitch affecting performance.

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