diff --git a/src/com/android/settings/deviceinfo/storage/AutomaticStorageManagementSwitchPreferenceController.java b/src/com/android/settings/deviceinfo/storage/AutomaticStorageManagementSwitchPreferenceController.java
index 4635d82f72a..e14278e9961 100644
--- a/src/com/android/settings/deviceinfo/storage/AutomaticStorageManagementSwitchPreferenceController.java
+++ b/src/com/android/settings/deviceinfo/storage/AutomaticStorageManagementSwitchPreferenceController.java
@@ -90,9 +90,17 @@ public class AutomaticStorageManagementSwitchPreferenceController extends
                 Settings.Secure.AUTOMATIC_STORAGE_MANAGER_ENABLED,
                 isChecked ? 1 : 0);
 
-        boolean storageManagerEnabledByDefault = SystemProperties.getBoolean(
-                STORAGE_MANAGER_ENABLED_BY_DEFAULT_PROPERTY, false);
-        if (isChecked && !storageManagerEnabledByDefault) {
+        final boolean storageManagerEnabledByDefault =
+                SystemProperties.getBoolean(STORAGE_MANAGER_ENABLED_BY_DEFAULT_PROPERTY, false);
+        final boolean storageManagerDisabledByPolicy =
+                Settings.Secure.getInt(
+                                mContext.getContentResolver(),
+                                Settings.Secure.AUTOMATIC_STORAGE_MANAGER_TURNED_OFF_BY_POLICY,
+                                0)
+                        != 0;
+        // Show warning if it is disabled by default and turning it on or if it was disabled by
+        // policy and we're turning it on.
+        if ((isChecked && (!storageManagerEnabledByDefault || storageManagerDisabledByPolicy))) {
             ActivationWarningFragment fragment = ActivationWarningFragment.newInstance();
             fragment.show(mFragmentManager, ActivationWarningFragment.TAG);
         }
diff --git a/tests/robotests/src/com/android/settings/deviceinfo/storage/AutomaticStorageManagementSwitchPreferenceControllerTest.java b/tests/robotests/src/com/android/settings/deviceinfo/storage/AutomaticStorageManagementSwitchPreferenceControllerTest.java
index 9bc1a3a521b..faf8b394da3 100644
--- a/tests/robotests/src/com/android/settings/deviceinfo/storage/AutomaticStorageManagementSwitchPreferenceControllerTest.java
+++ b/tests/robotests/src/com/android/settings/deviceinfo/storage/AutomaticStorageManagementSwitchPreferenceControllerTest.java
@@ -168,4 +168,23 @@ public class AutomaticStorageManagementSwitchPreferenceControllerTest {
 
         verify(transaction, never()).add(any(), eq(ActivationWarningFragment.TAG));
     }
+
+    @Config(shadows = {SettingsShadowSystemProperties.class})
+    @Test
+    public void togglingOnShouldTriggerWarningFragmentIfEnabledByDefaultAndDisabledByPolicy() {
+        FragmentTransaction transaction = mock(FragmentTransaction.class);
+        when(mFragmentManager.beginTransaction()).thenReturn(transaction);
+        SettingsShadowSystemProperties.set(
+                AutomaticStorageManagementSwitchPreferenceController
+                        .STORAGE_MANAGER_ENABLED_BY_DEFAULT_PROPERTY,
+                "true");
+        Settings.Secure.putInt(
+                mContext.getContentResolver(),
+                Settings.Secure.AUTOMATIC_STORAGE_MANAGER_TURNED_OFF_BY_POLICY,
+                1);
+
+        mController.onSwitchToggled(true);
+
+        verify(transaction).add(any(), eq(ActivationWarningFragment.TAG));
+    }
 }