Mazda 3 Sedan 2019 Manual page 25

Overview
Basic Operations
Deleting contents from the Favorites list
1. Select "Edit" from the Options menu.
2. Select "Delete Favorite(s)" from the Edit menu.
3. Place a check in the box next to the item you want to delete and select "Delete" to delete
the item. You can delete multiple items.
1-21
The equipment and installation position varies by vehicle