My son noticed both of my headlights seemed to be shaking when I brought my new 800 max Outlander home.

The test: Try wiggling and taping the plactic below the headlight housing.
If you have any play then your headlights will vibrate. Not good on the filiments.

The simple fix. You'll find a black locking washer under the headlight in the wheel well. It's pressed around a plastic pin.
Usually it's not tightened all the way and has lot's of play. Just push the self tightning metal washer in from a few angles with a screw driver and your done.
No more headlight vibration.

 

cool