Acura 2011 TL Owner's Manual page 417

Bluetooth HandsFreeLink (Models with navigation system)
Phone pairing tips
You cannot pair your phone while
the vehicle is moving.
Up to six phones can be paired.
Your phone's battery may drain
faster when it is paired to HFL.
414
To change the pass-key setting:
Select ''Setup Bluetooth Phone''
1.
from the Phone Setup screen.
2. Select ''Pass-key.''
The default pass-key ''0000''
NOTE:
is used until you change the setting.
For a randomly generated pass-key
each time you pair a phone, select
''Random.''
2011 TL
Example
Push the selector to left to delete.
To create your own pass-key, select
''Fixed'' and follow steps 3 and 4.
3. Delete the current pass-key.
Enter a new pass-key, and select
4.
''OK.''