2001 Base 192K -

I have searched CL, I did not find any comments about one head light bouncing.

Passenger side headlight is bouncing, drivers side is stable. Lights are aimed fine with the light quality being equal from both lights.

I noticed it since I bought the car over 2 years ago, just never bothered me, however, I was following the wife home a few nights ago from picking up her new Audi A7 (start new conversation here) she said it was like I was flashing my headlights at her. So I figure it might be time to address the issue.

When I start the car / turn on headlights they go through their usual up and down motion and stop at level.

With it only being one headlight: Is it the headlight leveling motor inside the headlight assembly that has gone bad or is it the front and back leveling sensors?

If it’s the motor inside the headlamp assembly, do I have the right part # 89960-50060?

Thoughts would be appreciated

 

You didn't mention, but I assume you have checked to make sure the headlight assembly is firmly installed and not bouncing. The second thing to check is to make sure the light bulb is properly seated and secured with the 2 spring clips, as shown here...
https://www.clublexus.com/forums/ls4...placement.html

 

Also, check if the projector is in contact with 2 screws holding it inside. Try bouncing your car with your weight and see if you can find out if the projector is shaking. Your best bet would be taking out the headlight itself and checking it out.