I have a 2011 XJL and

I hit a pothole and it felt like my tire had blown. When I got out the car I noticed that the passenger side front and back of the car was now lower almost tire to frame and my steering is whacky. After about 3 minutes my DSC illuminated and also the warning signals on my dash.

 

Sounds like maybe the rear airshock blew a hole.

 

I was thinking the same thing. I did notice though that the front wheel may have been shifted back just a little as well

 

I do have a bent lower control arm and ordered a new one. In am not for sure if I should get another sensor just in case. Not sure if just replacing the control arm will allow the car to raise back up. Any advice on this is appreciated

 

Wow. That must have been some pothole.

If the height sensor isn't busted then the car should level out with the new arm.

 

Wow, do you have photos? I'm going through something similar and bringing the car in on Friday. I didn't have any measurement devices handy when I got under the car so eyeballed my front suspension. I can fit 2 fingers from wheel to front wheel arch on driver's side, 3 fingers on passenger side and have a left hand clunking noise occasionally.