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Old 10-21-2015, 11:00 AM
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ACC/FCW in rain or snow

Hi everyone,
Does anyone have any experience with ACC or FCW (camera + front bumper radar ) in rain or snow. Does the system have any way of sensing and compensating for slippery road surfaces?

Thanks

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Old 10-21-2015, 02:56 PM
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Re: ACC/FCW in rain or snow

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Originally Posted by JcalGC View Post
Hi everyone,
Does anyone have any experience with ACC or FCW (camera + front bumper radar ) in rain or snow. Does the system have any way of sensing and compensating for slippery road surfaces?

Thanks
It doesn't appear to [2014] do so, although I haven't triggered the stability control while using ACC to test. I can see where this might be a good idea to avoid inevitable lawsuits for re-arranging someone's rear bumper due to driver being clueless about situational awareness.

If the front sensor gets covered by splashback [fairly hard to do], mud, ice, snow, it
will disable ACC and put a warning on the VIC.
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Old 10-22-2015, 10:57 AM
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Re: ACC/FCW in rain or snow

From my observations, it appears that ACC cancels out if any wheelspin is detected. I've used it on long sandy access tracks at the lower limit of 40km/h and it works quite nicely... until you hit a slightly heavier or tramped-out patch of sand.

Cheers,
Steve
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Old 11-05-2015, 12:22 PM
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Re: ACC/FCW in rain or snow

Never used it in the snow. Anytime I've driven while it's actually snowing, it doesn't take long for the sensor to get covered up and I get a warning saying ACC is not available.
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Old 11-05-2015, 02:48 PM
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Re: ACC/FCW in rain or snow

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Originally Posted by dcorn View Post
Never used it in the snow. Anytime I've driven while it's actually snowing, it doesn't take long for the sensor to get covered up and I get a warning saying ACC is not available.
For any speed fast enough where it would be enabled, even the longest following distance is much too close for snow.

At higher speeds on icy freeways, it works fine as long as the sensor stays clear, but
again, much too close for conditions.
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Old 11-05-2015, 02:56 PM
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Re: ACC/FCW in rain or snow

Just yesterday I was driving with it on and their was a very light drizzle happening. The message "wipe front sensor" activated on my dash and the ACC cancelled. Funny thing is, i gave it a few minutes and then it started working again.

Take away: your main concern is going to be rain or snow blocking the front sensor. As a side note, you should never use cruise control in the rain. Easy way to hydroplane and crash
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Old 11-10-2015, 02:34 PM
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Re: ACC/FCW in rain or snow

ACC and FCW will disable as soon as that front sensor is covered, same with park sensors.


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