Honda Civic Owner's Manual page 238

Bluetooth HandsFreeLink
System Setup
This command group allows you to
change or customize HFL basic
settings.
232
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 '' '' after the prompts.
Security
3. Follow the HFL prompts and say
the 4-digit passcode you want to
set.
4. Follow the HFL prompts to
confirm the number.
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
234 ).