diff --git a/selfdrive/ui/qt/onroad.cc b/selfdrive/ui/qt/onroad.cc
index 0ba2929..e317aff 100644
--- a/selfdrive/ui/qt/onroad.cc
+++ b/selfdrive/ui/qt/onroad.cc
@@ -250,6 +250,33 @@ void OnroadWindow::paintEvent(QPaintEvent *event) {
     }
   }
 
+  if (scene.show_signal) {
+    static int signal_frames = 0;
+    QColor signal_border_color;
+
+    if (scene.turn_signal_left || scene.turn_signal_right) {
+      if (sm.frame % 20 == 0) {
+        signal_border_color = bg_colors[STATUS_CONDITIONAL_OVERRIDDEN];
+        signal_frames = 15;
+      } else if (signal_frames > 0) {
+        signal_border_color = bg_colors[STATUS_CONDITIONAL_OVERRIDDEN];
+        signal_frames--;
+      } else {
+        signal_border_color = bg;
+      }
+
+      if (scene.turn_signal_left) {
+        QRect leftHalf(rect.x(), rect.y(), rect.width() / 2, rect.height());
+        p.fillRect(leftHalf, QColor(signal_border_color.red(), signal_border_color.green(), signal_border_color.blue(), 255));
+      } else if (scene.turn_signal_right) {
+        QRect rightHalf(rect.x() + rect.width() / 2, rect.y(), rect.width() / 2, rect.height());
+        p.fillRect(rightHalf, QColor(signal_border_color.red(), signal_border_color.green(), signal_border_color.blue(), 255));
+      }
+    } else {
+      signal_frames = 0;
+    }
+  }
+
   if (scene.show_blind_spot) {
     auto getBlindspotColor = [&](bool turn_signal, int &frames) {
       if (turn_signal) {
diff --git a/selfdrive/ui/ui.cc b/selfdrive/ui/ui.cc
index c52fa44..362e5f6 100644
--- a/selfdrive/ui/ui.cc
+++ b/selfdrive/ui/ui.cc
@@ -327,6 +327,7 @@ void ui_update_frogpilot_params(UIState *s) {
   bool developer_ui = params.getBool("DeveloperUI");
   bool border_metrics = developer_ui && params.getBool("BorderMetrics");
   scene.show_blind_spot = border_metrics && params.getBool("BlindSpotMetrics");
+  scene.show_signal = border_metrics && params.getBool("SignalMetrics");
   scene.show_steering = border_metrics && params.getBool("ShowSteering");
 
   scene.disable_smoothing_mtsc = params.getBool("MTSCEnabled") && params.getBool("DisableMTSCSmoothing");
diff --git a/selfdrive/ui/ui.h b/selfdrive/ui/ui.h
index 437f006..2e0436f 100644
--- a/selfdrive/ui/ui.h
+++ b/selfdrive/ui/ui.h
@@ -217,6 +217,7 @@ typedef struct UIScene {
   bool show_aol_status_bar;
   bool show_blind_spot;
   bool show_cem_status_bar;
+  bool show_signal;
   bool show_slc_offset;
   bool show_slc_offset_ui;
   bool show_steering;