Acura 2011 TL Owner's Manual page 405

Bluetooth HandsFreeLink (Models without navigation system)
System Setup
This command group allows you to
change or customize HFL basic
settings.
402
To set a 4-digit passcode to lock the
HFL system for security purposes:
Press and release the HFL Talk
button before a command.
1. Say '' System setup .''
2. Say '' Security '' after the prompts.
3. Follow the HFL prompts and say
the 4-digit passcode you want to
set.
4. Follow the HFL prompts to
confirm the number.
2011 TL
Once a passcode is set, you
NOTE:
will need to enter it to use HFL
each time you start the vehicle. If
you forget the code, your dealer
will have to reset it for you, or
you will have to clear the entire
system (see page 404 ).