2026 TESLA MODEL Y — Complaint #2158502
Open-data reference.
NHTSA Complaint about FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING filed December 18, 2025
NHTSA complaint #2158502 (ODI reference 11705810) concerns a 2026 TESLA MODEL Y and was filed on December 18, 2025. The owner reports the failure occurred on December 17, 2025. The report was geocoded to California based on the filer's self-reported location. The affected component is categorized as forward collision avoidance: automatic emergency braking, 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: no, fire: no, injuries: 0, fatalities: 0. No crash, fire, or fatality was associated with this report, which places it in the early-warning stream rather than the priority-review stream. 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 TESLA MODEL Y cohort independently describe similar forward collision avoidance: automatic emergency braking 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 2026 TESLA MODEL Y shows the complete component-level complaint distribution alongside any active investigations or recalls.
Complaint Description
While driving on a residential street at night with Full Self-Driving (Supervised) engaged, the vehicle suddenly applied Automatic Emergency Braking without any visible obstacle, vehicle, pedestrian, or hazard present. The braking was abrupt and unexpected and did not correspond to traffic, road conditions, or driver input. No collision occurred, but the sudden stop caused a whiplash effect to occupants, creating a risk of injury despite the absence of an external hazard. The driver immediately disengaged the system after the event. Tesla later reviewed vehicle data and confirmed that an Automatic Emergency Braking event occurred while FSD (Supervised) was active. Tesla identified the software version as FSD v14.2.1 and documented the incident as unexpected emergency braking, with the date, time, location, and environmental conditions recorded.
Complaint Details
| NHTSA Complaint ID | 2158502 |
| ODI Number | 11705810 |
| Date Filed | December 18, 2025 |
| Failure Date | December 17, 2025 |
| VIN | 7SAYGDED9TF |
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Source: NHTSA Vehicle Complaints Database. Component taxonomy and severity codes are standardized by NHTSA Office of Defects Investigation.
Read our methodology — how this data is sourced, computed, and verified.