Nope, the front sensors use the same chime that your headlights on, door open chimes use in the instrument panel. The separate front mounted chime ended in 2005, it was mounted in the cover panel below the dash over the drivers feet, just about where the brake pedal is. The hole in that cover for it was still in my 06 but there's no wiring. The back sensors use a separate chime mounted in the PDC control box in the rear storage are where the fuse panels are located.
The fronts and rears can be activated, or disabled and the volume increased or decrease thru programming (with SDD), I know for a while the fronts became active if the vehicle stopped (at a light or stop sign) and it became an annoyance if you stopped at a crosswalk and people walked infront of you. There was a software update to fix that. Maybe a PO had them disabled for some reason.
Don't know if its a speaker or what, its the same device that annoyingly chimes to tell you its less than 39F outside, or your tires are low. It's part of the IPC and not something that can be changed.
You have no warning chimes for anything? Anytime a fault pops up, or its cold out you should get a ding from the IPC to make you look at the message area, unless there has been some major change to the 2010, or a way to turn it off in one of the menus on screen. I the 09's and earlier with the "real" gauges you need SDD to change the volume, or turn it on or off. The LCDs screens maybe able to access the options thru the onscreen menus.