Re: "High Heat Rewards" icon is under my character's shoe and does not disappear
I'm back with a reply from this original complaint I made to EA around 2 years ago. It just so seems that the support for this game has been officially dropped as Ghost Games are no longer a part of the NFS franchise. It's really unfortunate that NFS Heat - personally one of my favourite NFS games of recent times - can no longer be updated anymore.
At this point, my best recommendation is just restart the game if you don't want to see the "High Heat Rewards" icon. However, as soon as you receive a volatile part(s), the icon will re-appear under the character's shoes. It's a permanent bug that you just have to bear with playing the game. Also, if you want to find your volatile part(s), you have to navigate through the "PERFORMANCE" tab and see which part(s) comes out as "NEW". The one(s) marked with "NEW" are the volatile part(s) you've earned in your high heat race(s).
Hope this "unhelpful" resolution was somehow helpful in someway possible.