Pre collision alert system

[Torched10]

Well mine finally went off this week,twice actually.person on front of me slowed for a turn,and halfway thru turn collision went off.in researching this a lot,seems the collision algorithm is sensitive to changes in speed of the car.your behind.ive gotten close to cars and it never goes off.2nd time it went off was when a large buck ambledbin front of.in that case car actually braked,thank God.so guess mine is working,but rarely,just as well

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[Vlad Soare]

So? Can it be killed? Is there a Forscan code that shuts it off for good?
I know I could probably unplug the radar (which would unfortunately also kill the ACC, but I wouldn't mind, as I don't use it anyway), but I would prefer a cleaner solution if possible.

 

[Hidalgo]

Only time mine went off is when someone crossed the centerline driving at me.
But they were not super close yet.

 

[Michael_vroomvroom]

Gone of three times for me in my first month of ownership, driving every day.

Second time was due to someone suddenly changing into my lane. Third time was due to me accelerating after a lange change, when the car in front suddenly slowed down. Both times the system started flashing and gave me an extra warning, but don't think it started applying the brakes yet, though I did apply the brakes either immediately or shortly afterwards

First time I'm not sure. Nobody in front of me, but I was suddenly going down a ramp that was rather steep and my front dropped a bit as I started braking. I'm guessing this confused the sensor (radar?) a bit.

Apart from a slight wtf moment the first time the system triggered I'm liking it and do not feel it triggers without reason. Have mine at the default medium sensitivity, think it works well so far, and have not felt any need to disable it.

 

[Vlad Soare]

It's not just about whether it's with or without reason. What bothers me is that it triggers in situations which are completely under control. Even if I understand its reasons, I still hate it when it reacts while I'm in control. It's like a mother in law sitting in the passenger seat, who shouts "CAREFUL, YOU IMBECILE!!!!!" whenever she feels that I'm not driving as slowly and attentively as she would like. I absolutely hate this. I'm not an imbecile, so I do not accept the car to treat me as if I were one. I own the car, not the other way around.
And although I could live with it shouting at me from time to time, the automatic braking is downright maddening.

 

[Michael_vroomvroom]

The few times it has triggered for me I've taken it as an "pay attention" warning, and there was good reason for me to pay extra attention. The "automatic braking" ("active braking" in the manual) is according to the manual the last step, and is only supposed to trigger when a collision is imminent. I have not experienced it triggering yet, but I imagine it could reduce the impact of a crash, or even save a life if it does some day trigger due to me momentarily not paying enough attention to what's ahead.

I think your driving style must be very different from mine if it triggers so often for you that it is "maddening".

 

[Vlad Soare]

The automatic braking should only occur when it's absolutely clear, beyond reasonable doubt, that no human being, not even Chuck Norris, could possibly react anymore. If that were the case, then I would have nothing against it.
Unfortunately, in my Mondeo I used to have this happen to me about twice a month on average. And never, not even once, was I out of control at that time. I'm saying "used to" because lately I've gotten into the habit of disabling it every time after I start the engine. It's buried deep into four layers of menus, but I've learned the sequence and I'm now able to do it without looking.

Now, I have no idea if the system implemented in the Mustang is as buggy as it is in the Mondeo. My Mondeo was made in 2016. The Mustang didn't get this feature until 2018, so who knows, they may have improved it a bit in the meantime.
I think I'll give it a chance. But the first time it shouts at me for no reason, or the first time it brakes when there's no need to, I will shut it down one way or the other. But I would prefer to kill it softly, rather than getting behind the grille to unplug the radar. Unplugging it might cause messages on the dash and/or chimes, which might prove to be even more annoying in the long run.

 

[Torched10]

Can you adjust radar sensor so it's looking up or down.
Mine has only gone off twice,one a full n
Braking experience when a deer suddenly appeared.it may be annoying,but there also be real cases like a deer or person suddenly in your path,when you'll be glad its there.

 

[Norm Peterson]

I worry more about people tailgating me in a situation that I have to stop hard. With the distance indication (adaptive cruise off), if someone is too close behind, I try to stay on gray. I’ll have enough space/time to brake less hard in case the person in the back have crappy reflections/normal car brakes.

That sounds like you have to pay way too much attention away from the road ahead. Why do we need instruments to tell us what our eyes should be able to do well enough without them?

Using "grey" in such circumstances is only to do what you should naturally do for yourself. Adjust your spacing to the car ahead to keep the total following distances of you to the car ahead plus that of the guy behind you to you relatively constant and appropriate for the speed.


Norm

 

[Vlad Soare]

I find the visual indication nice. Not indispensable by any means, but nice. I like it. What I hate is the active braking. And I don't hate it just as a matter of principle, I mean I would have nothing against it if it worked perfectly, I only hate it because in its current implementation (at least in the Mondeo; I may be wrong about the Mustang) it's clearly buggy.
If the visual indication had a bug and got it wrong from time to time, it would be just a minor glitch, nothing serious, perhaps not even noticeable most of the time. But a buggy active braking system is downright dangerous.

 

[Norm Peterson]

It's not just about whether it's with or without reason. What bothers me is that it triggers in situations which are completely under control. Even if I understand its reasons, I still hate it when it reacts while I'm in control. It's like a mother in law sitting in the passenger seat, who shouts "CAREFUL, YOU IMBECILE!!!!!" whenever she feels that I'm not driving as slowly and attentively as she would like. I absolutely hate this. I'm not an imbecile, so I do not accept the car to treat me as if I were one. I own the car, not the other way around.

I understand you completely here.

While I don't have this feature on my '08 GT (and don't think it's present on our 2019 WRX either), I have had various other nannies occasionally intervene, and my reaction every time has been to wonder if something on the car just failed, like the ECU.

No thanks, in no uncertain terms. I probably would do something to effectively "blind" such a system (the computer in my '08 is under the convenient misunderstanding that the clutch pedal is always depressed all the way to the floorboards).


Norm

 

[Norm Peterson]

I find the visual indication nice. Not indispensable by any means, but nice. I like it. What I hate is the active braking. And I don't hate it just as a matter of principle, I mean I would have nothing against it if it worked perfectly

Here's where we differ.

To me, any electronic intervention is just as unwelcome as having a passenger reach over and physically make the control input themselves, based on what they thought appropriate. Either way, I'm going to be caught off guard, actively distracted from what I need to be doing, and a bit slower to come around to doing the right things.


Norm

 

[WildHorse]

There's an old saying "if you ain't swearing while driving, you're not paying attention". Why people rely on or need these things is beyond me.

 

[Bikeman315]

There's an old saying "if you ain't swearing while driving, you're not paying attention". Why people rely on or need these things is beyond me.

Because there are things that happen that are totally out of our control. You may think you're the best driver in the world, but you're not. No one is. I thought I was too. History has proven me wrong. The first time an idiot without brake lights slams on them and your car does the same you will be singing a different tune. Ask me how I know.

 

[Norm Peterson]

^^^ most times in the sort of traffic that might call for a sudden stop you should already be aware of a car ahead of you not having any working brake lights.

Now that the safety part of NJ's periodic motor vehicle inspection has been done away with, it's all too common to notice cars for which one, two, or all three brake lights are inop. Just another thing to watch and adjust for, like it always used to be.


Norm

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