ClearSelection

<ul id="panelbar">
    <li id="item1">Item 1</li>
    <li id="item2">Item 2</li>
</ul>
<script>
    // create a PanelBar instance and get it.
    var panelBar = $("#panelbar").kendoPanelBar().data("kendoPanelBar");

    // select the element with ID "item1"
    panelBar.select($("#item1"));

    // select the element with ID "item2"
    panelBar.select($("#item2"));

    // clear all selection
    setTimeout(function() {
      panelBar.clearSelection();
    }, 2000);
</script>