Buick Regal Navigation Manual page 58

Press to avoid
major roads. A checkmark appears
to indicate the Avoid mode is on.
Press to avoid
toll roads. A checkmark appears to
indicate the Avoid mode is on.
Press to avoid
ferries. A checkmark appears to
indicate the Avoid mode is on.
Press to avoid
tunnels. A checkmark appears to
indicate the Avoid mode is on.
Press to delete all saved
destinations. A Delete Saved
Destinations submenu displays.
Select the desired options for
deletion.
Press to enable the guidance alert
pop-up to be viewed on the map or
on the primary screens such as
audio, weather, phone, etc.
A checkmark appears to indicate
the guidance alert mode is on.