NHTSA complaint #2175603 (ODI reference 11717160) concerns a 2021 POLESTAR POLESTAR 2 and was filed on February 11, 2026. The owner reports the failure occurred on December 11, 2025. The report was geocoded to California based on the filer's self-reported location. The affected component is categorized as back over prevention: warnings, one of NHTSA's standardized taxonomy codes used to group defect patterns across make, model, and year.

The filer flagged the following severity indicators: crash: yes, fire: no, injuries: 0, fatalities: 0. A complaint that flags a crash, fire, or fatality is escalated on NHTSA's internal review queue and factors more heavily into any Preliminary Evaluation decision on this make and model. Because a VIN was supplied, this complaint is tied to a specific vehicle and not just a model-year cohort.

Individual complaints are consumer-submitted and unverified by NHTSA engineers — the agency's role at this stage is to collect, index, and make them searchable. What matters for federal action is the pattern: when many owners of the same POLESTAR POLESTAR 2 cohort independently describe similar back over prevention: warnings failures, defect investigators have grounds to open a PE and request manufacturer data. Related filings for the same vehicle and component appear below, and the detail page for the full 2021 POLESTAR POLESTAR 2 shows the complete component-level complaint distribution alongside any active investigations or recalls.