Changing Your Watch Passcode
You must know your existing watch passcode to change it. If you forget your passcode or make too many incorrect passcode attempts, you must reset it in the Garmin Connect™ app.
-
From the watch face, press
.
-
Select
> 
> Passcode > Change Passcode.
- Enter your existing four-digit passcode.
- Enter a new four-digit passcode.
The next time you remove the watch from your wrist, you must enter the passcode before you can view any information.