NHTSA Complaint #11572855 — 2020 TESLA MODEL 3

FSD Beta 11.4.9 - A concern documented in NHTSA Complaint ID 11555478 and subsequently remedied with later releases has returned in the current FSD Beta build 2023.44.30.14. When engaging FSD ,the display screen enters an AUTO brightness mode and requires driver intervention to adjust brightness back to the driver's desired setting, as described by the following. When FSD is engaged, display AUTO brightness is activated and the screen adjusts up in brightness from the previous setting, which is often too high. The driver's attention is then taken away from road and traffic ahead while the screen is reset to the driver's preferred setting. In the current build the following anomalies also occur. When FSD is engaged and the display is set to AUTO brightness, if the driver opens the Display menu and adjusts brightness down, that driver setting is held even though the Display brightness is still shown to be in AUTO mode. However, if after activating FSD and the AUTO brightness is engaged, and the brightness is then adjusted down using the left scroll wheel, the display remains in AUTO mode and the screen is automatically adjusted back up to the AUTO set point. This is true when the driver's preferred setting is lower than the AUTO set point, but not true if the driver's preferred setting is higher than the AUTO set point. When the initial driver setting is higher than the AUTO set point, the screen remains at the driver's preferred setting. While these anomalies are not safety concerns, per se, they do require that the driver's attention is diverted to resetting the desired display brightness. If, as if often the case, FSD is disengaged and then reengaged, the process described above is repeated. In the course of a 30 minute drive this can require that the driver adjust screen brightness multiple times, sometimes repeating the adjustment process within minutes after prior adjustment.