NHTSA Complaint #11450054 — 2022 TESLA MODEL 3

While driving on an undivided highway at night using either traffic aware cruise control or autosteer, about every minute the car would aggressively decelerate up to 15mph. Every time a car would pass in the other direction, the deceleration would be abrupt and would slow to ~10mph below the speed limit. This occurred at least 3 times within a ~7 minute window. The road was straight, unlit, with a 50mph speed limit, and was sufficiently wide to safely pass oncoming cars. Random deceleration with no oncoming cars would be less severe but frequent. I contacted Tesla about this and they confirmed these occurrences but stated it was in response to a curve in the road or a vehicle being detected. They claimed the system performed appropriately. Despite being alert, these decelerations are startling in the absence of visible explanation to the driver. If I was being tailgated, a rear end collision would have been highly probable. I owned a 2018 Tesla Model 3 and have driven the same road at night and never experienced this.