My wife has been complaining about the same thing in our 2010, but I generally feel if the beep(s) occur, there's usually a reason for it. This morning I discovered that the TPMS light was on in the dash; certainly this could contribute the alerts she is hearing. Also, when she said she heard a beep 6 times, a review of the owner's manual revealed this tidbit of info:
Advanced Key Removed from Vehicle Warning Beep</SPAN></SPAN>A beep sound will be heard and the KEY warning</SPAN></SPAN>
light (red) will flash continuously when The start knob has not been returned to</SPAN></SPAN>
the LOCK position and all the doors</SPAN></SPAN>
are closed after removing the advanced</SPAN></SPAN>
key from the vehicle. (A beep sound</SPAN></SPAN>
will be heard 6 times</SPAN>.)</SPAN></SPAN>
NOTE:</SPAN></SPAN>
Because the advanced key utilizes low-intensity</SPAN></SPAN>
radio waves, the Advanced Key Removed From</SPAN></SPAN>
Vehicle Warning may activate if the advanced</SPAN></SPAN>
key is carried together with a metal object or it</SPAN></SPAN>
is placed in a poor signal reception area</SPAN></SPAN>
within the vehicle.
</SPAN></SPAN>The note here is important in that it just might explain the 6 beeps (she carries her cell phone in her handbag along with the AKE fob), but she didn't notice if there was a blinking key icon on the dash. Others here have cited that the dash-light dimmer knob can cause a beep from time to time if set to an extreme setting, just an FYI.