Also: Tesla has always been clear about their definition of "crash", it hasn't changed since they started reporting years ago.

But it says specifically it does since Jan 2023 and they've retroactively adjusted their previous reporting...

Yes, but it depends on the speed you are going

> If regenerative braking is aggressively slowing Model Y (such as when your foot is completely off the accelerator pedal at highway speeds), the brake lights turn on to alert others that you are slowing down.

1: https://www.greencarfuture.com/electric/does-regen-braking-t...

https://www.greencarfuture.com/electric/does-regen-braking-t...

Seems pretty obvious, the idea is that engine braking would also cause your car to slow down without lighting up the brake lights so any kind of slowdown at that level would not normally engage the brake lights. But as soon as you slow down more than that the lights will come on, making its behavior pretty close to what you'd expect from a regular car with and ICE lacking regenerative braking.

Or would you suggest that a normal car should engage it's brake lights when you let go of the accelerator and engine brake? (I can see a case for that.)

For Tesla Model Y:

> If regenerative braking is aggressively slowing Model Y (such as when your foot is completely off the accelerator pedal at highway speeds), the brake lights turn on to alert others that you are slowing down.

Source: Model Y manual: https://www.tesla.com/ownersmanual/modely/is_is/GUID-3DFFB07...

In comparison, my 2015 Leaf doesn't illuminate the brake lights during regen but it's regen is significantly less than my Model 3.

The radar system they use in modern VW and Audi cars is extremely conservative, claiming to not engage the brakes at all above 35 mph, and waiting until the last possible moment to apply the brakes below that window. It's been absurdly accurate for me. Once every few months or so it "warns" outside of a dangerous situation, but they are almost always situations I could have prevented with a gentler approach to driving, for example following closely a truck with a trailer that is slowly turning off the street will erroneously activate the warning because I'm continuing as if it will be out of my way, which is not the safest.

The time it activated in a real danger situation it didn't even apply the brakes, it "primed" them so that my action of pressing the brakes would happen faster.

I love my 2021 RS 5, but I have to disagree with this. Even in Traffic Jam adaptive mode, many times it will accelerate towards a vehicle _that it detects_, and only brake very late, and hard. On several occasions I've intervened because I wasn't sure if it would. When I've been alone in the car, I've waited later (and seen it brake hard, of its own accord), when I've held off on the brake since I have no passengers to give whiplash.

It will also absolutely emergency brake above 35mph.

Thanks, Dad. Clearly I have no idea what I'm doing, or what I'm talking about, so my real-world experience is invalid.

For the benefit of everyone else, phantom braking is a thing that by definition occurs when you're not following anyone. Such as when the car slams on the brakes upon approaching a car that's clearly about to turn right from a nearby parking lot, but who is equally clearly waiting for you to pass before entering the road.

I shouldn't have been patronizing, I'm just so confused how the same hardware and (possibly) software can produce such different results. Why would the audi version be so much more sensitive?

One episode per 3000 miles is too many, and that's about what I was seeing before I disabled the feature.

If someone has built an AEB system with the degree of immunity from false triggers that's needed to make it a net positive for road safety, I haven't seen any evidence yet. Similar complaints across many different car models are widespread.

It definitely is erratic with the speed, speeding up and slowing down slightly, which is annoying, but not so dangerous.

The dangerous parts are driving home from work, 6 miles, at least two very hard brakes each trip with no cars ahead of me (I only made a few trips like this before disabling it).

Automatic emergency braking (with the loud beeps and red message on the screen) on two lane highways, over crests, a myriad of other circumstances.

https://electrek.co/2022/06/08/tesla-files-use-new-radar-con...

(Absolutely no reason to stop and no weather or afternoon sun for confusion. My best guess is that flaky vision systems thought a semi truck was entering my lane, but I really don't know.)

All AEB's from all manufacturers have a certain amount of phantom braking, but non-Tesla AEB are well studied and definitely save lives.

"Oh, by the way, starting in 2025, your breakfast cereal will be legally required to contain this drug."

Tesla seems to have a lot of software issues when it comes to "smart" features like these. I wouldn't be surprised if they are indeed worse than the competition, but I'd love to see a similar comparison

[0] https://www.youtube.com/watch?v=nsb2XBAIWyA

How unpredictable is a solid 5 seconds of the Tesla signaling it's lane change then slowing down? I blame the asshole that was in the far left lane going way too fast and not slowing down (just letting off the accelerator when the Tesla signalled would have prevented the accident) when someone is trying to enter. Then they brake way too late. Everyone behind that first vehicle is also to blame for following too closely at too fast of a speed.