You're driving at 70, interstate, heading west around 10 am. Cloudy day, temp around 80.
Beep! "FEB: Front Radar Obstructed" warning appears on the panel between tach and speedo.
The "collision warning system inactive" icon light comes on.
After a few minutes, the warning message goes off; the collision warning system light goes off.
Happens again after maybe ten minutes.
It never seems to happen on slower, country road driving.
2018 2.5SV sedan - bought new on July 2!