Complaint 2216714
2021 TESLA MODEL Y • FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL • incident Jun 1, 2026
Complaint Summary
FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL
Owner Narrative
* What component or system failed or malfunctioned, and is it available for inspection upon request? FSD. It is available upon request. * How was your safety or the safety of others put at risk? Over the course of the last two months since the last FSD update (currently on v12.6.4), at least 20 times the vehicle has not properly stayed in the lane under certain circumstances listed below. These circumstances are always the same and it is repeatable and dangerous as the vehicle would have crashed into the center median if I had not intervened. Repeatable conditions: * 79 MPH * Low curvature highway at highway speeds when turning to the right only. * FSD version 12.6.4 with software version 2026.14.6 is engaged and in Assertive mode. * Has the problem been reproduced or confirmed by a dealer or independent service center? Tesla wanted $1k in order to reproduce and diagnose the problem, so I declined. * Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? Same as above; Tesla wanted $1k in order to reproduce and diagnose the problem, so I declined. * Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? None of the safety systems fired, including lane departure warning or steering correction. FSD would not have veered out of the way of the median.
Owner-submitted narrative on file with NHTSA. Complaint narratives are self-reported and have not been verified.
Related
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