diff --git a/core/java/com/android/internal/notification/SystemNotificationChannels.java b/core/java/com/android/internal/notification/SystemNotificationChannels.java
index a93c487db7d7e..681b46a01c8db 100644
--- a/core/java/com/android/internal/notification/SystemNotificationChannels.java
+++ b/core/java/com/android/internal/notification/SystemNotificationChannels.java
@@ -58,7 +58,12 @@ public class SystemNotificationChannels {
     public static String USB = "USB";
     public static String FOREGROUND_SERVICE = "FOREGROUND_SERVICE";
     public static String HEAVY_WEIGHT_APP = "HEAVY_WEIGHT_APP";
-    public static String SYSTEM_CHANGES = "SYSTEM_CHANGES";
+    /**
+     * @deprecated Legacy system changes channel with low importance which is no longer used,
+     *  Use the default importance {@link #SYSTEM_CHANGES} channel instead.
+     */
+    @Deprecated public static String SYSTEM_CHANGES_DEPRECATED = "SYSTEM_CHANGES";
+    public static String SYSTEM_CHANGES = "SYSTEM_CHANGES_ALERTS";
     public static String DO_NOT_DISTURB = "DO_NOT_DISTURB";
     public static String ACCESSIBILITY_MAGNIFICATION = "ACCESSIBILITY_MAGNIFICATION";
     public static String ACCESSIBILITY_SECURITY_POLICY = "ACCESSIBILITY_SECURITY_POLICY";
@@ -189,7 +194,11 @@ public class SystemNotificationChannels {
 
         NotificationChannel systemChanges = new NotificationChannel(SYSTEM_CHANGES,
                 context.getString(R.string.notification_channel_system_changes),
-                NotificationManager.IMPORTANCE_LOW);
+                NotificationManager.IMPORTANCE_DEFAULT);
+        systemChanges.setSound(null, new AudioAttributes.Builder()
+                .setContentType(AudioAttributes.CONTENT_TYPE_SONIFICATION)
+                .setUsage(AudioAttributes.USAGE_NOTIFICATION)
+                .build());
         channelsList.add(systemChanges);
 
         NotificationChannel dndChanges = new NotificationChannel(DO_NOT_DISTURB,
@@ -229,6 +238,7 @@ public class SystemNotificationChannels {
     public static void removeDeprecated(Context context) {
         final NotificationManager nm = context.getSystemService(NotificationManager.class);
         nm.deleteNotificationChannel(DEVICE_ADMIN_DEPRECATED);
+        nm.deleteNotificationChannel(SYSTEM_CHANGES_DEPRECATED);
     }
 
     public static void createAccountChannelForPackage(String pkg, int uid, Context context) {
diff --git a/core/res/res/values/strings.xml b/core/res/res/values/strings.xml
index 3d73a02fca4ae..d5fc14eeb56e5 100644
--- a/core/res/res/values/strings.xml
+++ b/core/res/res/values/strings.xml
@@ -5745,6 +5745,16 @@
     <!-- Content of notification indicating users can tap on the notification to go to dnd behavior settings -->
     <string name="zen_upgrade_notification_content">Tap to check what\'s blocked.</string>
 
+    <!-- Notification permission informational notification text -->
+    <!-- Title for notification inviting users to review their notification settings [CHAR LIMIT=NONE] -->
+    <string name="review_notification_settings_title">Review notification settings</string>
+    <!-- Content of notification informing users of notification permission change, and inviting them to modify current settings. [CHAR LIMIT=NONE]-->
+    <string name="review_notification_settings_text">In Android 13, apps that you install need your permission to send notifications. Tap to change this permission for existing apps.</string>
+    <!-- Notification action text for having this notification come back later [CHAR LIMIT=20] -->
+    <string name="review_notification_settings_remind_me_action">Remind me later</string>
+    <!-- Notification action text to dismiss this notification [CHAR LIMIT=20]-->
+    <string name="review_notification_settings_dismiss">Dismiss</string>
+
     <!-- Application name displayed in notifications [CHAR LIMIT=60] -->
     <string name="notification_app_name_system">System</string>
     <!-- Application name displayed in notifications [CHAR LIMIT=60] -->
diff --git a/core/res/res/values/symbols.xml b/core/res/res/values/symbols.xml
index 776d3dafe8c07..c4d907b7725ec 100644
--- a/core/res/res/values/symbols.xml
+++ b/core/res/res/values/symbols.xml
@@ -3891,6 +3891,11 @@
   <java-symbol type="string" name="zen_upgrade_notification_visd_title" />
   <java-symbol type="string" name="zen_upgrade_notification_visd_content" />
 
+  <java-symbol type="string" name="review_notification_settings_title" />
+  <java-symbol type="string" name="review_notification_settings_text" />
+  <java-symbol type="string" name="review_notification_settings_remind_me_action" />
+  <java-symbol type="string" name="review_notification_settings_dismiss" />
+
   <java-symbol type="string" name="config_managed_provisioning_package" />
 
   <java-symbol type="string" name="notification_app_name_system" />
diff --git a/proto/src/system_messages.proto b/proto/src/system_messages.proto
index 177b080bfbf67..dfa34bb508058 100644
--- a/proto/src/system_messages.proto
+++ b/proto/src/system_messages.proto
@@ -286,6 +286,10 @@ message SystemMessage {
     // Package: android
     NOTE_MTE_OVERRIDE_ENABLED = 69;
 
+    // Inform the user of notification permissions changes.
+    // Package: android
+    NOTE_REVIEW_NOTIFICATION_PERMISSIONS = 71;
+
     // ADD_NEW_IDS_ABOVE_THIS_LINE
     // Legacy IDs with arbitrary values appear below
     // Legacy IDs existed as stable non-conflicting constants prior to the O release