2021 TESLA MODEL Y — Complaint #2130885
Open-data reference.
NHTSA Complaint about LANE DEPARTURE: ASSIST filed September 16, 2025
NHTSA complaint #2130885 (ODI reference 11687653) concerns a 2021 TESLA MODEL Y and was filed on September 16, 2025. The owner reports the failure occurred on September 16, 2025. The report was geocoded to Arizona based on the filer's self-reported location. The affected component is categorized as lane departure: assist, 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 lane departure: assist 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 TESLA MODEL Y shows the complete component-level complaint distribution alongside any active investigations or recalls.
Complaint Description
Teslaâs Full Self-Driving (FSD) system has repeatedly demonstrated unsafe behavior in my 2021 Model Y (VIN [XXX] , ~60,184 miles). The issues involve Adaptive Cruise Control, Lane Keeping Assistance, and Forward Collision Warning. FSD frequently follows vehicles too closely, leaving insufficient distance. When I disengage, I am left with no safe option: braking hard risks being rear-ended and triggers a hard-braking event, while lifting off the accelerator leaves me dangerously close, still flagged as unsafe following. FSD often waits until less than a mile before highway exits to attempt lane changes, causing last-second darting, missed exits, or unsafe maneuvers. It also performs excessive and unnecessary lane changes that add risk without improving efficiency. Merges are frequently unsafe, forcing me to brake hard to let others pass or accelerate aggressively to avoid being cut off. On several occasions, FSD has jerked or swerved into adjacent lanes without signaling, seemingly tr
Complaint Details
| NHTSA Complaint ID | 2130885 |
| ODI Number | 11687653 |
| Date Filed | September 16, 2025 |
| Failure Date | September 16, 2025 |
| VIN | 5YJYGDEF6MF |
Similar LANE DEPARTURE: ASSIST Complaints for 2021 TESLA MODEL Y
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Autopilot suddenly slams on the brakes going [XXX] on [XXX] just north of Ankeny, IA when you hit the underpass at [XXX] [XXX] , [XXX] ). This happens every time for the past year about. No softwa
When driving on highways the car will jerk the steering wheel and cause the car to turn when the car is in the center of the lane. This causes the driver to counter the force from the steering wheel t
What component or system failed or malfunctioned, and is it available for inspection upon request? System computer. After a Over the Air (OTA) update, most driver assistive functions are inoperative.
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.