diff --git a/components/lib/accordion/Accordion.d.ts b/components/lib/accordion/Accordion.d.ts
index 8b8f2fafd..a539869a3 100755
--- a/components/lib/accordion/Accordion.d.ts
+++ b/components/lib/accordion/Accordion.d.ts
@@ -76,9 +76,9 @@ export interface AccordionState {
      */
     id: string;
     /**
-     * Current active index state as a boolean
+     * Current active index state.
      */
-    d_activeIndex: boolean;
+    d_activeIndex: number | number[];
 }
 
 /**
diff --git a/components/lib/panel/Panel.d.ts b/components/lib/panel/Panel.d.ts
index 39792ef5c..63e323032 100755
--- a/components/lib/panel/Panel.d.ts
+++ b/components/lib/panel/Panel.d.ts
@@ -86,7 +86,8 @@ export interface PanelPassThroughAttributes {
  */
 export interface PanelState {
     /**
-     * Current collapsed state as a boolean
+     * Current collapsed state as a boolean.
+     * @defaultValue false
      */
     d_collapsed: boolean;
 }
diff --git a/components/lib/tabview/TabView.d.ts b/components/lib/tabview/TabView.d.ts
index 017cd5164..a0531c2d4 100755
--- a/components/lib/tabview/TabView.d.ts
+++ b/components/lib/tabview/TabView.d.ts
@@ -97,7 +97,7 @@ export interface TabViewPassThroughAttributes {
  */
 export interface TabViewState {
     /**
-     * Current collapsed state as a boolean.
+     * Current active index state.
      */
     d_activeIndex: number;
     /**
@@ -106,10 +106,12 @@ export interface TabViewState {
     id: string;
     /**
      * Current state of previous button.
+     * @defaultValue true
      */
     isPrevButtonDisabled: boolean;
     /**
      * Current state of the next button.
+     * @defaultValue false
      */
     isNextButtonDisabled: boolean;
 }