diff -u b/core/modules/locale/locale.pages.inc b/core/modules/locale/locale.pages.inc
--- b/core/modules/locale/locale.pages.inc
+++ b/core/modules/locale/locale.pages.inc
@@ -13,10 +13,12 @@
  *
  * Manually checks the translation status without the use of cron.
  *
- * @deprecated in Drupal 8.0.x and will be removed before 9.0.0.
+ * @deprecated in Drupal 8.0.0 and will be removed before 9.0.0.
+ * @see https://www.drupal.org/node/2551259
  * @see locale_menu()
  */
 function locale_translation_manual_status() {
+  @trigger_error('locale_translation_manual_status() is deprecated in Drupal 8.0.0 and will be removed before Drupal 9.0.0. Use locale_menu(). See https://www.drupal.org/node/2551259.', E_USER_DEPRECATED);
   module_load_include('compare.inc', 'locale');
 
   // Check the translation status of all translatable projects in all languages.