Adaptive cruise control false alarms

[Rick]

Following distance isn't an issue, at least not proper following distance. The vehicle seems to want about double the space that the "three second rule" creates.

I find it embarrassing and dangerous when the Explorer decides to jab it's brakes in a traffic situation where no one behind me would expect me to be touching my brakes. It does explain a lot of what I see on the roads out here, and it does nothing for traffic safety.

 

[kam327]

My Mazda is even worse in terms of hitting the brakes hard. I wish these systems would be tuned to coast before hitting the brakes. That's what I do manually.

 

[themishmosh]

Well, you could fault the adaptive cruise for excessive braking, but there are plenty of times where I see what's going on ahead of me and press the brakes myself before the adaptive cruise has a chance to. Maybe I do it because when I do it the ride smoother. Overall, I think the adaptive cruise is really good. I set the distance at 2 out of the 4 possible choices and it works well.

 

[Rick]

Well, you could fault the adaptive cruise for excessive braking, but there are plenty of times where I see what's going on ahead of me and press the brakes myself before the adaptive cruise has a chance to. Maybe I do it because when I do it the ride smoother. Overall, I think the adaptive cruise is really good. I set the distance at 2 out of the 4 possible choices and it works well.

I have the distance set as close as possible to match the gaps left by local traffic.

Anticipating what's ahead has no bearing on my complaint, because my complaint is that there is nothing going on ahead that an alert human would brake for. I have never braked for a vehicle making a right hand turn that was 100% out of my lane, but the adaptive cruise control sure has.

 

[themishmosh]

I have the distance set as close as possible to match the gaps left by local traffic.

Anticipating what's ahead has no bearing on my complaint, because my complaint is that there is nothing going on ahead that an alert human would brake for. I have never braked for a vehicle making a right hand turn that was 100% out of my lane, but the adaptive cruise control sure has.

Well that's odd then. My adaptive cruise is completely predictable and is very accurate detecting vehicles directly ahead of me. It impresses me that if i change lanes directly behind a faster moving vehicle, it won't brake because it gets the speed of that vehicle. i guess to answer your query then, mine almost never applies brake for no reason.

 

[Dale5403]

Well that's odd then. My adaptive cruise is completely predictable and is very accurate detecting vehicles directly ahead of me. It impresses me that if i change lanes directly behind a faster moving vehicle, it won't brake because it gets the speed of that vehicle. i guess to answer your query then, mine almost never applies brake for no reason.

It sounds like yours works the same way mine does. I've had it apply the brakes when a vehicle slows to turn in front of me only if it does not get completely out f the lane.Other than that it hasn't happened.

 

[cwescapexlt4x4]

I think my ACC is really pretty good overall, it's a computer using radar so it doesn't see what we see. Very pleased with it 99.5% of the time.

 

[MikeHTally]

My wife's RAV has done that a couple of times. My Explorer panics about a car turning right ahead, but no brake application, just the flashing red screen.

 

[MNgopher]

Two situations: a car turning right and slowing down in any scenario where it doesn't have its own turn lane and on a curve where you are the inside car.

Usually just the blinking/chimes, but it's braked too