Sensor on control arm on front driver's side?
 

There's some sort of sensor or something that's bolted to the suspension arm on the front driver's side...

Anyone know what it does?

(I snapped the bolt so it's tie wrapped in place, just want to check how urgent it is to fix it)

Headlight level sensor.....that little sucker is expensive..so look for a used one..or try and fix it

While installing my springs, we accidently snapped the head of the bolt so the sensor isn't damaged or anything. It's just attached to the arm with a tie wrap at the moment while my buddy finds an extractor.

The fact that it's not on solid and a bit shaky, does that affect anything?

It might make your headlights strange...but shouldn't do much else

If it doesn't work properly after..the specs are in the FSM to test it with 4.5V power source to check the output PM me if you can't find it when you need it