diff --git a/packages/SystemUI/plugin/src/com/android/systemui/plugins/statusbar/phone/NavBarButtonProvider.java b/packages/SystemUI/plugin/src/com/android/systemui/plugins/statusbar/phone/NavBarButtonProvider.java
index 5243228121c62..1285ed87718e1 100644
--- a/packages/SystemUI/plugin/src/com/android/systemui/plugins/statusbar/phone/NavBarButtonProvider.java
+++ b/packages/SystemUI/plugin/src/com/android/systemui/plugins/statusbar/phone/NavBarButtonProvider.java
@@ -27,7 +27,7 @@ public interface NavBarButtonProvider extends Plugin {
 
     public static final String ACTION = "com.android.systemui.action.PLUGIN_NAV_BUTTON";
 
-    public static final int VERSION = 2;
+    public static final int VERSION = 3;
 
     /**
      * Returns a view in the nav bar.  If the id is set "back", "home", "recent_apps", "menu",
@@ -46,8 +46,6 @@ public interface NavBarButtonProvider extends Plugin {
 
         void setVertical(boolean vertical);
 
-        void setCarMode(boolean carMode);
-
         void setDarkIntensity(float intensity);
     }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/ButtonDispatcher.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/ButtonDispatcher.java
index 2bc26654fd872..a83e6591c48b7 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/ButtonDispatcher.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/ButtonDispatcher.java
@@ -174,16 +174,6 @@ public class ButtonDispatcher {
         mCurrentView = currentView.findViewById(mId);
     }
 
-    public void setCarMode(boolean carMode) {
-        final int N = mViews.size();
-        for (int i = 0; i < N; i++) {
-            final View view = mViews.get(i);
-            if (view instanceof ButtonInterface) {
-                ((ButtonInterface) view).setCarMode(carMode);
-            }
-        }
-    }
-
     public void setVertical(boolean vertical) {
         mVertical = vertical;
         final int N = mViews.size();
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/NavigationBarView.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/NavigationBarView.java
index 57c88275113cb..9a7039a515a15 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/NavigationBarView.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/NavigationBarView.java
@@ -683,8 +683,6 @@ public class NavigationBarView extends FrameLayout implements PluginListener<Nav
 
             if (isCarMode != mInCarMode) {
                 mInCarMode = isCarMode;
-                getHomeButton().setCarMode(isCarMode);
-
                 if (ALTERNATE_CAR_MODE_UI) {
                     mUseCarModeUi = isCarMode;
                     uiCarModeChanged = true;
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/policy/KeyButtonView.java b/packages/SystemUI/src/com/android/systemui/statusbar/policy/KeyButtonView.java
index 65bfabd19fbbd..05017718d42b2 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/policy/KeyButtonView.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/policy/KeyButtonView.java
@@ -304,11 +304,6 @@ public class KeyButtonView extends ImageView implements ButtonInterface {
     public void setVertical(boolean vertical) {
         //no op
     }
-
-    @Override
-    public void setCarMode(boolean carMode) {
-        // no op
-    }
 }