NHTSA Complaint #11569063 — 2020 TESLA MODEL 3

FSD Beta 11.4.9 and past versions. A possible explanation for some degree of phantom braking on controlled access roadways. FSD Beta reacts to a stop light at the end of an offramp when the direction of travel is inline with the ramp. This reaction does not occur in daylight, only in darkness. It occurs across multiple versions of FSD Beta and is consistent and repeatable at night under similar conditions. The point at which normal speed is resumed appears to coincide with the beginning of the offramp, but that may be coincidental. Since it doesn't occur in daylight it is less likely that the reaction is triggered by lane topography or some other factor relating to the converging right hand lane that occurs after the ramp is passed. In one test pass that was not recorded, the stoplight at the top of the ramp turned green while the braking was happening and the car seemed to react to the green light and resume speed, but that may have been coincident to the turn in the roadway or being adjacent to the beginning of the offramp. Another example where the light turned green has not happened again during tests. This test was at 3:08 am on a weekday with almost zero traffic in this direction and there were no vehicles within 0.25 mile behind the test vehicle at the time this was recorded. LINK TO VIDEO: [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)