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Discussion Starter · #1 ·
Today was my first time out in snow with my new Civic, and while on the highway "brake system" icon lit up on the dash, as well as a little icon that looks like a car with front end damage. I pulled off so I could read the little i message and it was just letting me know the radar was blocked and some sensing features were now disabled. Posting this just in case people don't know about it.
I am happy to say she got me home safely in some very heavy snowfall. >:)
 

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Warning message

My new civic did the same thing today. If you look under vehicle messages in Hondalink it will show the warning messages. I'm not sure how to delete these, but the car warning went away when I cleaned the windshield.
 

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It is a somewhat common thing to have the sensors stop working if they are covered in dirt or snow. Just be careful that you aren't relying on the system or something in that case, not that you should be anyway.
 

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Discussion Starter · #5 ·
How did the Civic handle in the snow? Have not had too much of an opportunity to drive in the snow in Kansas City this year.
Mine handled great, but I do not have the OEM tires anymore, they were junk in the snow.
Today the lens on the bumper was NOT covered with anything, and occasionally the orange "BRAKE" light warning came up and beeped. Not at all sure why. But glad it did not apply the brakes on me. Its a learning curve about the car and it's features I guess.
 

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The issue of snow covering various sensors seems like something that manufacturers should try to remedy. It would suck to not have the technology work just when you need it most, in the snow. And it seems like it really should n't be that hard to fix. Just put defrost on the cameras or something like that.
 

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It would suck to not have the technology work just when you need it most, in the snow.
If they did that, they'd also have to build in detection of braking effectiveness and compensation for it. The normal CMBS reaction timings would probably be way too little, way too late, on a slippery surface.
 

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Mine handled great, but I do not have the OEM tires anymore, they were junk in the snow.
Today the lens on the bumper was NOT covered with anything, and occasionally the orange "BRAKE" light warning came up and beeped. Not at all sure why. But glad it did not apply the brakes on me. Its a learning curve about the car and it's features I guess.
Over time I became aware of a specific driving scenario that would always trigger a false positive to the Forward Collision Warning in my 2013 Accord.... anytime I was cresting a rise in the road (even very slight) and there was sunshine directly on the windshield.... it would trip the FCW.

I have had a couple of false positive to FCW in the Civic but haven't yet noticed if there is a pattern to it.
 

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I assume this is something that they are working on. Most of these technologies will become the foundation of autonomous driving technology, and obviuosly it is unacceptable to have your autonomous vehicle stop being able to detect things because the sensors have some snow on them or sun shines at the windshield.
 

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Not sure how they can fix the snow sensing problem unless they develop some kind of surface that snow can't stick to.
 

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Not sure how they can fix the snow sensing problem unless they develop some kind of surface that snow can't stick to.
Applying wax on it can help since it makes snow and freezing rain harder to stick, you might get some sticking on but overall it`s going to help, better than taking no action at all.
 

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Discussion Starter · #15 ·
Over time I became aware of a specific driving scenario that would always trigger a false positive to the Forward Collision Warning in my 2013 Accord.... anytime I was cresting a rise in the road (even very slight) and there was sunshine directly on the windshield.... it would trip the FCW.

I have had a couple of false positive to FCW in the Civic but haven't yet noticed if there is a pattern to it.
No pattern to it happening on mine either. and I've owned mine since December but it just started happening in the last couple weeks, scares the crap out of me when the car brakes on me for no darn reason
 

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Discussion Starter · #17 ·
My only point was there's more to the problem than just the radar antenna you said was clean.
The car had been fully cleaned not long before. there was not a spec of dirt on it. Since I'm well aware these things need to be kept clean I am making sure they are clean
 

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The car had been fully cleaned not long before. there was not a spec of dirt on it. Since I'm well aware these things need to be kept clean I am making sure they are clean
That's fine and I'm happy for you. But all I was responding to was "the lens on the bumper was NOT covered with anything". You said nothing to indicate that the other sensor was clean or filthy or that you'd checked it or considered it. That's ALL I was responding to. I wasn't inquiring about the washing history of your vehicle or questioning your total knowledge of its systems.
 

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Discussion Starter · #19 ·
That's fine and I'm happy for you. But all I was responding to was "the lens on the bumper was NOT covered with anything". You said nothing to indicate that the other sensor was clean or filthy or that you'd checked it or considered it. That's ALL I was responding to. I wasn't inquiring about the washing history of your vehicle or questioning your total knowledge of its systems.
And I responded that the entire car was spotless at the time it happened, no dirt no snow no ice nothing. So you asked, I responded. That's how these things work............
 

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No pattern to it happening on mine either. and I've owned mine since December but it just started happening in the last couple weeks, scares the crap out of me when the car brakes on me for no darn reason
:surprise: I thought your car was just giving you a warning about the sensor being blocked. Didn't know it was actually braking because of it. Best to bring it to the dealership if its braking.
 
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