Grinding noise over speed bumps

Every time I go over a speed bump, I hear a very noticeable grinding noise as the tire goes up it sounds grindy and as it goes down it sounds grindy front driver side area. Took it to a dealer and they said there is no problem. Therefore, should I just forget about it until there is a problem? It doesn't affect function, but I do hear it going over speed bumps and not regular shallow bumps. Please advice before the warranty expires! Been almost 1 year with my big bad Prius C and like McDonalds I'm lovin it! Thanks Prius Bros!!

 

Hello Prius bro! No I don't hear anything when I push down! Actually your post got me thinking that perhaps it's that plastic guard thing under the front end that is either rubbing on the tire or rubbing on the ground itself because I have to go fairly fast to drop the car low enough that it makes the sound. If I go slow it barely makes a grinding sound. What is weird is if I back up and turn the wheel left while reversing over a bump, I hear it. If I turn the wheel right while reversing, I don't hear it after going over bump. Very strange indeed

 

I'll take it to the dealer and tell them to check out the CV joint!!