NHTSA Complaint #11499238 — 2021 TESLA MODEL 3

Adding our vehicle to the list of those affected by what seems to be commonly known as "Phantom Braking". The most recent occurrence was on Interstate 25 southbound in northern Colorado when the "Autopilot" (Adaptive Cruise Control) suddenly braked and reduced our speed from 75 to 51 mph, with no vehicles or other obstructions visible. We were almost rear-ended by a car following us, however. I want to point out that this was only the worst example of several episodes that occurred that day, and on earlier dates as well. We no longer use Autopilot, which makes long trips much less comfortable. I also want to mention that our vehicle does NOT have Tesla's "Full Self Driving" (FSD) installed, so my hands were on the wheel at all times.