2018 Model 3, Dual Motor, Long Range, FSD, 2021.32.22, 96K miles
TL/DR - Known issues with AP/NOA and Safety Score.
Sadly Safety Score is seriously flawed. You receive Hard Braking and Following to closely hits when traveling on the highways. Traffic is slowing and stopping, adjacent left and right lanes still moving, NOA set at 6 car lengths fails to slow or brake, hit the brakes to keep from becoming a traffic fatality, anti lock kicks in, sorry hard braking following to closely. Lots of hits; A tractor trailer cuts in, a car in passing lane at night starts drifting into the lane nearly hitting the front of the car, AP/NOA takes off ramp at combat speed, fails to slow, a squirrel runs out in front of the car, mailman over shoots pulling out of blind street, all trigger hard braking and some with following to closely. You see the problem, AP/NOA fails and Safety Score gives you a hit. The Safety Score is just raw data, does not account for the triggering event.
Granted I could game the system and follow the tractor trailer driving manually behind it for next hour, hoping nobody else cuts in, but for what? Yes I could spin the wheel down and slow the car, again the system is failing. It’s broken and the drivers take the hit when it happens. If I manually did this each time I saw a potential hit, then the flaws would never be recorded. Oh look how wonderful our system is... On many of the highways in North East, we have on ramp and off ramp sharing very short same lane, they put a dashed line the length of it, NOA can’t handle it and drops to AP, which won’t cross it, you end up jerking the wheel or hitting the brakes, Hard braking. Now it’s become a running joke when folks are in the car, every time it fails, you hear from your trapped audience Hard Braking, Following to Closely.
Also what happen to the off ramps, it has definitely reverted back, ping ponging across the exit lane at highway speed, wow, it had been improving but now it’s gone backwards. The new crazy braking occurring when multi lane on ramp merges with highway, they have a long run out but out of the clear blue it slams on the brakes. This is really jarring and scary, why the heck is it doing it, you are not even at a merge point yet and they still have a solid line on their side. This one you definitely move to the middle or left lane early to prevent it, otherwise you are going to get one heck of a jolt when it slams brakes at 75mph.
Be safe out there. We’ll be making another >1k mile road trip this weekend, college sports. Can’t wait for all the hits on the highway…. Oh as bad as all this seems, score is still at 97, dropped from 98 after the last > 1k road trip. No I didn't game the system to keep it up, letting it do it's thing.
Big thanks to all you honest beta feedback providers the good and the bad, we get to hear it’s short comings so we can judge the improvements. Thank you for your honesty. I don’t feel like I really missed out on anything yet. Supposedly no improvements to highway???? Again please be safe out there, you are playing with bleeding edge technology and it’s only software, it can only do what’s programmed in it.