User reports FSD 14.3.13 attempts dangerous right turn from middle lane
Unconfirmed: a Reddit user reports that FSD 14.3.13, on a 2026 Model Y with HW4 hardware, attempted an abrupt maneuver from the middle lane toward the right lane to take a turn at an intersection. According to the account, the car activated the turn signal and appeared to be missing the exit, but at the last second attempted the lane change instead of continuing with the flow of traffic. The user described the event as an unacceptable safety-critical disengagement. The available excerpt includes no further details about the surroundings or any response from Tesla.
- Reported version: FSD 14.3.13 on 2026 Model Y with HW4.
- The user classifies the event as a safety-critical disengagement.
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