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2017 Ti Q2
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213 Posts
Discussion Starter · #1 ·
The other very cold and rainy day, the Forward Collision Warning System light came on for a few minutes. Does anyone know why?
 

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76 Posts
Sensor obststructed...maybe by the rain?
 

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I’ve had the same occur twice, on the same day, with heavy rain. I think it was a sheet of water on the sensor, as it cleared when I stopped, and perhaps the air pressure holding water on the sensor dropped and allowed it to clear. I know excessive dirt/mud/water/ice will cause the sensor to malfunction and generate the system off message (much like the park assist system).
 

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2020 Alfa Romeo Giulia Sport Ti AWD
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Did you have a Prius stuck on your front bumper?

As AlfaCrisis said, a message is usually displayed when the systems senses an error.
 

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Holy crap! Was that thing still alive?
 

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2020 Alfa Romeo Giulia Sport Ti AWD
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