I recently purchased a 2014 Toyota Corolla S with 75K miles, automatic transmission. I've had two small problems come up since purchasing the vehicle two months ago.

(1)  I'm hearing a small grinding sound from my front wheels (sounds more like it's the right wheel area but can't tell for sure) that happens when I'm going over a bump while breaking. It doesn't seem to happen every time, but I most often notice it on those occasions I just described. I mostly notice it going very slow over a speed bump, for example, but not when I'm going fast and hit a pothole. There is no engine light or other indicator light. Perhaps this is a shocks issue? Nothing unusual came out of the inspection before I bought it. Can you please help? Is this a very expensive issue?

(2) The driver's side door rarely responds to the lock/unlock button on my keys. All other doors work 100% of the time, but the driver's side works maybe 5% of the time and I instead have to insert the key in order to lock/unlock. The driver's side door does not make any "click" noise in the times when this does not work. Given that all the other doors work I don't think it's a key issue. Potentially could it be a fuse box issue?

Thank you in advance for the help!