This indicator first started coming on during the cold snap (here in Michigan), so I figured it to have been caused by sub 10-degree temps. But it's even coming on at temps of 32 and above. It also used to turn off (and allow the directional feature of the headlamps to resume function) after a few minutes of driving, but recently it just stays on indefinitely.

Has anyone else experienced issues with their headlamps?

 

Hmph.... nobody?

 

Sounds like salt and / or corrosion affecting the head light leveling sensors.

 

I don't know how relevant this is, but up here in canada it got to -50 degrees Celsius and it made my Traction control light and ABS light turn on, the car drove normally, but the lights would just stay on. I did a soft reset (disconnecting the battery) and everything went back to normal.