I know that you have an XT3, and I don't - But I’ll get back to you on this, tell you where it is on the XT2. I can’t at the moment, I’m twiddling my thumbs in a car park waiting for someone !
Edit:
XT2 has options for Navigation, Media, Phone Calls, Proximity Alerts. (Phone calls only when a headset is connected).
If the sound is something that is generated by the phone itself, then you might have to change your alert sound on the phone.
In settings, Driver assistance - you can alter what alerts the XT2 gives you: Rider Alerts - and a whole liest of tick options (Lane Closure, Schools, Bends etc,). In the same section there are other types of alerts Speeding, borders, ride summary etc. In that same section is another fro Proximity Alerts - including Audio which dictates the type of tone - including 'Off'.
Depending on whether your phone is iOS based or Android Based - you can control the alerts coming to the XT2 via the Tread App.
For iOS, this is done ont he XT2 itself (I can't help with that, but I have checked it out in the past, so I know it is there).
For Anddroid, even without allowing Tread to Store Data or synch you have to open up the Tread App on your phone.
On the map screen clcik the 3 bar menu
Settings, then Zumo XT2- Finish Setup
If you do not want to activate the Tread Synch disaster - then make sure that you do not tap on 'Enable Storage' - otherwise to delete it you have to uninstall everything, reset your Zumo to factory and start again as if it was a fresh install.
Click Smart Notifications . If you get a check list, skip the next bit - it is already set up. Otherwise:
- and Set Notification Permissions.
You get a list of all of the Apps on your phone - scroll down to find the Tread App and turn it on.
Go back -- <
The map appears - click the 3 bar menu - > Settings
If you skipped that last bit, continue from here:
There is a list of what alerts you wish to come from your phone to the XT2.
Alerts
Email
Incidents
Messages
Reminders
Social
Other
There are more options if you have iOS
Turn thema ll off except the ones that you really want to know about. I generally have them all turned off except 'Messages' . People don't normally message me unless it is important - and I generally regard Social Medai stuff as completely ignorable for a few days.
Note that this does not stop messages or whatever coming through to your phone. It stops Tread from passing that info on to the XT2. The message or whatever will still be on your phone when the XT2 is turned off.
Hope one of these snippets helps.
Sorry I cannot speak refer to the XT3 - I don't have one. But I expect that least some of the abaove relates to both XT2 and XT3. THey use the same Tread app.