Acura 2010 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
To show the HFL information, press
the PICK-UP button on the steering
wheel.
2010 TL
Some phones may send battery,
signal strength, and roaming status
information to HFL.