Acura 2011 TL Owner's Manual page 411

Bluetooth HandsFreeLink (Models with navigation system)
HFL Display
As an incoming call notification, you
will see the following display:
U.S. model is shown.
408
CALLER NAME BATTERY LEVEL
PHONE DIALING STATUS
SIGNAL STRENGTH
BLUETOOTH INDICATOR
ROAM STATUS
LENGTH OF CALL TIME
To answer the call and show the
HFL information, press the PICK-UP
button on the steering wheel.
2011 TL
Some phones may send battery,
signal strength, and roaming status
information to HFL.