Honda PCX 150 Owner's Manual page 204

When the answer back button is pressed,
u
the LED on the Honda SMART Key
comes on. Make sure the LED went off
before the next button pressing.
If the answer back button or ignition
u
switch is not pressed for 1 minute, the
Honda SMART Key indicator starts
blinking and this mode will be cancelled.
If so, remove the EM mode coupler,
return to and follow the procedure
c
again.
Press the answer back button to select from
g
3 levels for the sound volume. The Honda
SMART Key indicator and ignition switch ring
come on while setting.
Wait for about 10 seconds until the ignition
h
switch ring starts blinking. The sound
volume level is set.
Remove the EM mode coupler from the EM
i
mode connector to finish setting.
The sound volume level is also set if you
u
remove the EM mode coupler before the
ignition switch ring starts blinking.
Store the EM mode coupler in the tool kit.
j
Reinstall the parts in reverse order.
Continued
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