2015 ct200h Rattling/Squeak near Exhaust

[madmav]

Hi folks, 

Hoping to pick your brain, picked up this 2015 ct 2 years ago and have had nothing but good things to say about it! - but will be departing the ct club soon and joining the is300h club!  (I need a bigger boot!)

One bit of work I had done was getting the protective heat shield replaced, (it was marked as advised replacement during visual check at my last service - but only got around to it last week!)

Now I'm hearing this strange rattling noise..has anyone heard this before or any theories what might be causing the noise? I'm hoping it's something minor and won't detract from the trade-in value. 

 appreciate any advice!

[madmav]

Looks like it was nothing major! Brought it back to the lexus dealer and who took a second look at it while I took an is300h for a spin! They were great and able to tighten up something and now it's perfect again. Potentially something they missed when replacing the heat shield! Loved the ct though, was a great entry into Lexus for me!