diff --git a/core/java/android/service/controls/Control.java b/core/java/android/service/controls/Control.java
index d01bc2524332b..8383072a48e32 100644
--- a/core/java/android/service/controls/Control.java
+++ b/core/java/android/service/controls/Control.java
@@ -73,25 +73,37 @@ public final class Control implements Parcelable {
     })
     public @interface Status {};
 
+    /**
+     * Reserved for use with the {@link StatelessBuilder}, and while loading. When state is
+     * requested via {@link ControlsProviderService#createPublisherFor}, use other status codes
+     * to indicate the proper device state.
+     */
     public static final int STATUS_UNKNOWN = 0;
 
     /**
-     * The device corresponding to the {@link Control} is responding correctly.
+     * Used to indicate that the state of the device was successfully retrieved. This includes
+     * all scenarios where the device may have a warning for the user, such as "Lock jammed",
+     * or "Vacuum stuck". Any information for the user should be set through
+     * {@link StatefulBuilder#setStatusText}.
      */
     public static final int STATUS_OK = 1;
 
     /**
-     * The device corresponding to the {@link Control} cannot be found or was removed.
+     * The device corresponding to the {@link Control} cannot be found or was removed. The user
+     * will be alerted and directed to the application to resolve.
      */
     public static final int STATUS_NOT_FOUND = 2;
 
     /**
-     * The device corresponding to the {@link Control} is in an error state.
+     * Used to indicate that there was a temporary error while loading the device state. A default
+     * error message will be displayed in place of any custom text that was set through
+     * {@link StatefulBuilder#setStatusText}.
      */
     public static final int STATUS_ERROR = 3;
 
     /**
-     * The {@link Control} is currently disabled.
+     * The {@link Control} is currently disabled.  A default error message will be displayed in
+     * place of any custom text that was set through {@link StatefulBuilder#setStatusText}.
      */
     public static final int STATUS_DISABLED = 4;
 
diff --git a/packages/SystemUI/res/values/strings.xml b/packages/SystemUI/res/values/strings.xml
index 0a6498b9f0c11..0314fc89d33a7 100644
--- a/packages/SystemUI/res/values/strings.xml
+++ b/packages/SystemUI/res/values/strings.xml
@@ -2790,7 +2790,13 @@
          a retry will be attempted [CHAR LIMIT=30] -->
     <string name="controls_error_retryable">Error, retrying\u2026</string>
     <!-- Error message indicating that the control is no longer available in the application [CHAR LIMIT=30] -->
-    <string name="controls_error_removed">Device removed</string>
+    <string name="controls_error_removed">Not found</string>
+    <!-- Title for dialog indicating that the control is no longer available in the application [CHAR LIMIT=30] -->
+    <string name="controls_error_removed_title">Control is unavailable</string>
+    <!-- Message body for dialog indicating that the control is no longer available in the application [CHAR LIMIT=NONE] -->
+    <string name="controls_error_removed_message">Couldn\u2019t access <xliff:g id="device" example="Backdoor lock">%1$s</xliff:g>. Check the <xliff:g id="application" example="Google Home">%2$s</xliff:g> app to make sure the control is still available and that the app settings haven\u2019t changed.</string>
+    <!-- Text for button to open the corresponding application [CHAR_LIMIT=20] -->
+    <string name="controls_open_app">Open app</string>
     <!-- Error message indicating that an unspecified error occurred while getting the status [CHAR LIMIT=30] -->
     <string name="controls_error_generic">Can\u2019t load status</string>
     <!-- Error message indicating that a control action failed [CHAR_LIMIT=30] -->
diff --git a/packages/SystemUI/src/com/android/systemui/controls/ui/ControlViewHolder.kt b/packages/SystemUI/src/com/android/systemui/controls/ui/ControlViewHolder.kt
index f07f3168d2460..994557cf696b8 100644
--- a/packages/SystemUI/src/com/android/systemui/controls/ui/ControlViewHolder.kt
+++ b/packages/SystemUI/src/com/android/systemui/controls/ui/ControlViewHolder.kt
@@ -118,6 +118,7 @@ class ControlViewHolder(
     var behavior: Behavior? = null
     var lastAction: ControlAction? = null
     var isLoading = false
+    var visibleDialog: Dialog? = null
     private var lastChallengeDialog: Dialog? = null
     private val onDialogCancel: () -> Unit = { lastChallengeDialog = null }
 
@@ -197,18 +198,24 @@ class ControlViewHolder(
     fun dismiss() {
         lastChallengeDialog?.dismiss()
         lastChallengeDialog = null
+        visibleDialog?.dismiss()
+        visibleDialog = null
     }
 
     fun setTransientStatus(tempStatus: String) {
         val previousText = status.getText()
 
         cancelUpdate = uiExecutor.executeDelayed({
-            setStatusText(previousText)
-            updateContentDescription()
+            animateStatusChange(/* animated */ true, {
+                setStatusText(previousText, /* immediately */ true)
+                updateContentDescription()
+            })
         }, UPDATE_DELAY_IN_MILLIS)
 
-        setStatusText(tempStatus)
-        updateContentDescription()
+        animateStatusChange(/* animated */ true, {
+            setStatusText(tempStatus, /* immediately */ true)
+            updateContentDescription()
+        })
     }
 
     private fun updateContentDescription() =
diff --git a/packages/SystemUI/src/com/android/systemui/controls/ui/StatusBehavior.kt b/packages/SystemUI/src/com/android/systemui/controls/ui/StatusBehavior.kt
index bf3835dba4fd8..6bf1897440337 100644
--- a/packages/SystemUI/src/com/android/systemui/controls/ui/StatusBehavior.kt
+++ b/packages/SystemUI/src/com/android/systemui/controls/ui/StatusBehavior.kt
@@ -16,7 +16,13 @@
 
 package com.android.systemui.controls.ui
 
+import android.app.AlertDialog
+import android.app.PendingIntent
+import android.content.DialogInterface
+import android.content.pm.PackageManager
 import android.service.controls.Control
+import android.view.View
+import android.view.WindowManager
 
 import com.android.systemui.R
 
@@ -31,7 +37,17 @@ class StatusBehavior : Behavior {
         val status = cws.control?.status ?: Control.STATUS_UNKNOWN
         val msg = when (status) {
             Control.STATUS_ERROR -> R.string.controls_error_generic
-            Control.STATUS_NOT_FOUND -> R.string.controls_error_removed
+            Control.STATUS_DISABLED -> R.string.controls_error_timeout
+            Control.STATUS_NOT_FOUND -> {
+                cvh.layout.setOnClickListener(View.OnClickListener() {
+                    showNotFoundDialog(cvh, cws)
+                })
+                cvh.layout.setOnLongClickListener(View.OnLongClickListener() {
+                    showNotFoundDialog(cvh, cws)
+                    true
+                })
+                R.string.controls_error_removed
+            }
             else -> {
                 cvh.isLoading = true
                 com.android.internal.R.string.loading
@@ -40,4 +56,42 @@ class StatusBehavior : Behavior {
         cvh.setStatusText(cvh.context.getString(msg))
         cvh.applyRenderInfo(false, colorOffset)
     }
+
+    private fun showNotFoundDialog(cvh: ControlViewHolder, cws: ControlWithState) {
+        val pm = cvh.context.getPackageManager()
+        val ai = pm.getApplicationInfo(cws.componentName.packageName, PackageManager.GET_META_DATA)
+        val appLabel = pm.getApplicationLabel(ai)
+        val builder = AlertDialog.Builder(
+            cvh.context,
+            android.R.style.Theme_DeviceDefault_Dialog_Alert
+        ).apply {
+            val res = cvh.context.resources
+            setTitle(res.getString(R.string.controls_error_removed_title))
+            setMessage(res.getString(
+                R.string.controls_error_removed_message, cvh.title.getText(), appLabel))
+            setPositiveButton(
+                R.string.controls_open_app,
+                DialogInterface.OnClickListener { dialog, _ ->
+                    try {
+                        cws.control?.getAppIntent()?.send()
+                    } catch (e: PendingIntent.CanceledException) {
+                        cvh.setTransientStatus(
+                            cvh.context.resources.getString(R.string.controls_error_failed))
+                    }
+                    dialog.dismiss()
+            })
+            setNegativeButton(
+                android.R.string.cancel,
+                DialogInterface.OnClickListener { dialog, _ ->
+                    dialog.cancel()
+                }
+            )
+        }
+        cvh.visibleDialog = builder.create().apply {
+            getWindow().apply {
+                setType(WindowManager.LayoutParams.TYPE_VOLUME_OVERLAY)
+                show()
+            }
+        }
+    }
 }