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Discussion Starter · #1 ·
As some of you may have noticed with the Insight, the brake warning will trigger when there is no car in front of you (my guess is the system is sensing vehicle in next lane, which is when it usually mis-triggers)..

My question is: is there any way to fix or fine tune the system to be more accurate or is this just inherent in this kind of system?
 

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The Collision Mitigation Braking System (CMBS) relies on both the radar and camera. CMBS has the most limitations listed compared to other Honda Sensing options, and most of the limitations related to the camera (p487 - shadows, contrast, lighting, reflections). - https://www.gen3insight.com/forum/10920-post10.html

Curved roads and hills also affect the detection range, as in cars exiting highway where the camera/radar still 'see' the exiting car in range and start braking. - https://www.gen3insight.com/forum/2...control-cars-exiting-off-ramps.html#post14108

If you think there's something off with the radar and camera, you could ask dealer to check calibration on both. But I don't think they'll just check it without another indication/symptom (i.e. multiple Sensing systems don't work, or you're getting alarms/alerts for non-functionality).

Short of recalibrating the camera, there's an option to adjust the detection distance at which the CMBS alert occurs. Default setting is 'normal' (~1.5 sec to stop); adjusting to 'short' (~1.1 sec to stop) might reduce some of the false positive alerts... but would also mean that any stops triggered by the car will be very sudden/abrupt and/or less effective distance to stop and avoid collision.
 

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Yeah it's hard to get them to agree to a recalibration of the system. The procedure is 3 hours work and no dealer wants to eat it unless Honda agrees to cover it under warranty work.
 

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Does it seem to happen in a particular section of your commute, or around a certain time of day? I've only experienced one "fluke" brake warning, but when the sun is lower in the sky and more shadows are cast, I get told that I'm leaving my lane quite frequently. I understand this limitation and come to expect it.

It is quite possible that your radar or camera is out of calibration. If you have a way to record it, and a buddy. Have them drive in front of you (on both sides) and apply their brakes. It would at least be a way to show that your CMBS system is "aimed" more so to one side than the other. From experience it should be your left side. Due to this, I now prefer to drive in the right lane on roads with a turn lane, especially when using ACC.
 

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Discussion Starter · #5 ·
I’ve had my lane departure thingy turned off for about 2 weeks now.. not sure if I’m ever turning it back on ..

The brake warning mis-trigger happens at least twice a day ( I drive a lot though ).. it happens when a car comes up in another lane and there’s no car immediately in front of me..

Honestly since my car is a few weeks off of dealer lot, I’m beginning to think it is an inherent problem in the system.. these Insights go through QC and perhaps Honda was OK with a low occurrence mistrigger because they didnt have everything perfected (and possibly couldn’t perfect it)..
 

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I’ve had my lane departure thingy turned off for about 2 weeks now.. not sure if I’m ever turning it back on ..

The brake warning mis-trigger happens at least twice a day ( I drive a lot though ).. it happens when a car comes up in another lane and there’s no car immediately in front of me..

Honestly since my car is a few weeks off of dealer lot, I’m beginning to think it is an inherent problem in the system.. these Insights go through QC and perhaps Honda was OK with a low occurrence mistrigger because they didnt have everything perfected (and possibly couldn’t perfect it)..
It appears that the insight and other Hondas (looks like the Chrysler's have a lot of trouble too) do have inherent problems. Not sure if it's the software design or the hardware but it definitely exists. Ford has the braking and acc down pat, but their lane departure, is very oddly designed.
 

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Discussion Starter · #7 ·
To answer the question of when the brake alert mis-trigger happens, Im thinking back on all the times it’s happened and it’s been mostly at night..
 

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To answer the question of when the brake alert mis-trigger happens, Im thinking back on all the times it’s happened and it’s been mostly at night..
Unfortunately, this scenario sounds characteristic of the camera/lighting limitations noted for the camera, and consistent with AAA's recent tests that showed no safety system (Chevy, Honda, Tesla, Toyota) could consistently detect or react to pedestrians (and presumably other shapes?) at night. - https://www.gen3insight.com/forum/5...aaa-testing-pedestrian-detection-systems.html

If the system is already poor at night and other scenarios, making it more braking-sensitive would result in more false positives. It's the kind of catch-22 that engineers will grapple with until radar/camera technology limits and programming algorithms improve.
 

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To answer the question of when the brake alert mis-trigger happens, Im thinking back on all the times it’s happened and it’s been mostly at night..
For me I'm going to agree with insightfully on the limitations of these systems. Especially at night. As he said there have been a lot of research on these things and I think it's just going to take time for these systems to continue to improve. This especially goes for the price performance ratio.
 
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