Blind spot monitoring - overly conservative and useless

[porkster]

Anyone else find the Blind spot detection to be utterly useless in this car? It seems to be speed sensitive, so if you are on the highway, it will still go off even if you are 4-5 car lengths ahead of the car in the adjacent lane. What good does it do if it always alerts?

My Accord won't ring unless there is actual danger, and even my Telluride that is jam packed with nannies will also not freak out unless the adjacent lane car is fairly close. I wind up having to turn my head in the Integra because every lane change on a NYC highway will be a blind spot alert.

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[Underdog]

I noticed it being very conservative at highway speeds however I think it is helpful on the off chance someone is approaching at a high speed. Now I just kind of factor it in and use it as a cue to double check my mirrors. My ‘19 Accord only beeped if someone was right there, so it’s taking some getting used to.

 

[nawfoo]

It's about a car lengths too long. It always goes off when I'm switching lanes when there's enough room to safely merge. I just leave it on for lane keeping assist which also isnt that great.

 

[chuckee98]

Anyone else find the Blind spot detection to be utterly useless in this car? It seems to be speed sensitive, so if you are on the highway, it will still go off even if you are 4-5 car lengths ahead of the car in the adjacent lane. What good does it do if it always alerts?

My Accord won't ring unless there is actual danger, and even my Telluride that is jam packed with nannies will also not freak out unless the adjacent lane car is fairly close. I wind up having to turn my head in the Integra because every lane change on a NYC highway will be a blind spot alert.

I turned mine off after a couple of days because it would give me an alert with almost every lane change.

 

[Braun]

It's way too conservative, to the point where I have to double-check. My Audi S5 was perfect in regards to the blind spot monitoring.

 

[Integra23]

I disabled lane keep but love the blind spot.

 

[crepr12]

Idk but I check the next lane regardless of the alert

 

[porkster]

I noticed it being very conservative at highway speeds however I think it is helpful on the off chance someone is approaching at a high speed. Now I just kind of factor it in and use it as a cue to double check my mirrors. My ‘19 Accord only beeped if someone was right there, so it’s taking some getting used to.

That makes sense, I think the calibration is the problem-- it's set at a distance that assumes all adjacent lane cars are approaching at a much higher rate of speed. If I am traveling faster than the adjacent lane car into the lane change, it should account for that and lower the warning distance.

 

[GotSeoul?]

It's kind of annoying to me, my last car was old so it had none of these kinds of safety features at all.

I'll change lanes and it goes off when I'm 4-5 car lengths away from someone and even though I'll look everytime it still kind of scares me for a moment like I missed something.

 

[Victorofhavoc]

Conservative? I find mine to be too aggressive. At 70mph it turns off when I'm only 2 or so car lengths ahead.

The average vehicle can do 0.7g average in braking, and that takes something like 230ft to stop from 70mph assuming 0s for the other drivers reaction. For every 1s of reaction, the other driver has moved about 100ft. This car can do 1g+ under braking, making it significantly faster to stop.

Assuming perfect conditions and a very attentive driver that you're passing, if they're going 70mph and you're going 80mph, you should be at least 90ft ahead in the event you slam on your brakes and that driver has a 0.7s average person reaction rate (because they're being very attentive while driving obviously and not drinking their coffee, texting, or shaving).

90ft is about 6 car lengths, or roughly the equivalent of "seeing the other car's entirety in your rear view mirror" as the general rule goes.

So yeah, mine is way too aggressive at highway speeds and I typically wait an entire second or so after passing before changing lanes. I wish mine was the 4-5 car lengths you guys are stating... 60-75ft sounds a lot more safe to me...

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