diff --git a/src/lang/english.txt b/src/lang/english.txt
index 173af233e5..124f8e34f6 100644
--- a/src/lang/english.txt
+++ b/src/lang/english.txt
@@ -5887,6 +5887,8 @@ STR_TIMETABLE_NON_TIMETABLED_BRANCH                             :{BLACK}Not all
 STR_TIMETABLE_WARNING_NO_SCHEDULED_DISPATCH_ORDER_ASSIGNED      :{BLACK}The dispatch schedule is not assigned to an order
 STR_TIMETABLE_WARNING_SCHEDULED_DISPATCH_ORDER_NO_WAIT_TIME     :{BLACK}The scheduled dispatch order should have a timetabled wait time
 STR_TIMETABLE_WARNING_SCHEDULE_ID                               :{BLACK}Schedule {NUM}: {STRING}
+STR_TIMETABLE_FILL_TIMETABLE_SUGGESTION                         :{BLACK}Enable 'Automate' to automatically fill in and update the wait and travel times.
+STR_TIMETABLE_FILL_TIMETABLE_SUGGESTION_2                       :{BLACK}(Alternatively, enable 'Autofill' or manually fill in all the timetable fields).
 
 STR_TIMETABLE_WARNINGS_OMITTED                                  :{BLACK}{NUM} further warnings omitted...
 
diff --git a/src/timetable_gui.cpp b/src/timetable_gui.cpp
index 53259721f7..faa41faac1 100644
--- a/src/timetable_gui.cpp
+++ b/src/timetable_gui.cpp
@@ -311,6 +311,8 @@ void ProcessTimetableWarnings(const Vehicle *v, std::function<void(StringID, boo
 				handler(STR_TIMETABLE_AUTOSEP_TIMETABLE_INCOMPLETE, false);
 			} else {
 				handler(STR_TIMETABLE_WARNING_AUTOSEP_MISSING_TIMINGS, true);
+				handler(STR_TIMETABLE_FILL_TIMETABLE_SUGGESTION, false);
+				handler(STR_TIMETABLE_FILL_TIMETABLE_SUGGESTION_2, false);
 			}
 		} else if (v->GetNumOrders() == 0) {
 			handler(STR_TIMETABLE_AUTOSEP_TIMETABLE_INCOMPLETE, false);