Nope. I've had several events in the middle of nowhere Kansas on I-70. Sun straight up high noon, no highway mirages, no overpasses, and zero cars around me (very common on that highway in Kansas). The car (enhanced autopilot) set to 77 mph (speed limit 75). Then the event happens. Car decelerates dramatically, without warning, nothing on the screen about obstacles. Turned off the emergency stop for obstacles setting - still happened. Turned off autopilot and just used TACC. Still happened. And when it happened, I finally started paying attention to the speed limit setting on the screen. In all cases the TACC reset the max speed limit to 50 mph. So the car slowed immediately from 77 to 50 mph.I’ve had my share of so called Phantom Breaking too.
If you pay attention to what’s going on around you, you’ll see it isn‘t phantom at all. Something caused the event.
Why? Who knows. There was nothing on the highways around me to trick the car into doing this. We even thought it was LTE signal issues because coincidentally one of the events happened at the same time that the kids lost their tablet streaming signals. But that was likely an anomaly since the other 10-15 occurrences had no linkage to LTE signal dead spots. It got so bad that the engineer in me (I am an aerospace engineering manager) decided to do a full root cause analysis during the trip back to CO from KY. Was totally unable to come up with an quantitative evidence - everything was anecdotal / qualitative, and random, except the 50 mph max speed change. I couldn't identify anything on the road or windshield (thought maybe it was dead bugs, but nope, cleaned windshield at one point, got back on I-70, and 6 minutes later, BAM, 77 to 50 mph deceleration). Service is no help - they just say "your camera test shows all cameras working fine".
I haven't tried AP on this specific car ('21 MYLR) since last summer because it's futile, so maybe they've made some updates. Maybe I'll take it out for a test this weekend given there are rumblings out there that some people are seeing dramatic reduction in phantom events.