Do you know which alerts are enabled for different vehicles? I queried a few vehicles Alert Source setting, some are -1, some are 0
0 indicates all Alerts are Disabled: For these vehicles, you do not need to close the speed alert, as they are already disabled status.
-1 indicates all Alerts are Enabled : For these vehicles, if you only want to close the speed alert not close the other alerts, you need to put the value comes from
Attached is the SOP for Alert Source setting for your reference.