diff --git a/selfdrive/ui/qt/onroad/onroad_home.cc b/selfdrive/ui/qt/onroad/onroad_home.cc
index 652bca5d0..f4ff62227 100644
--- a/selfdrive/ui/qt/onroad/onroad_home.cc
+++ b/selfdrive/ui/qt/onroad/onroad_home.cc
@@ -84,6 +84,14 @@ void OnroadWindow::updateState(const UIState &s) {
   // FrogPilot variables
   const UIScene &scene = s.scene;
 
+  blindSpotLeft = scene.blind_spot_left;
+  blindSpotRight = scene.blind_spot_right;
+  showBlindspot = scene.show_blind_spot && (blindSpotLeft || blindSpotRight);
+
+  if (showBlindspot) {
+    shouldUpdate = true;
+  }
+
   if (shouldUpdate) {
     update();
   }
@@ -203,4 +211,25 @@ void OnroadWindow::paintEvent(QPaintEvent *event) {
   QRect rect = this->rect();
   QColor bgColor(bg.red(), bg.green(), bg.blue(), 255);
   p.fillRect(rect, bgColor);
+
+  if (showBlindspot) {
+    QColor blindspotColorLeft = bgColor;
+    QColor blindspotColorRight = bgColor;
+
+    if (blindSpotLeft) {
+      blindspotColorLeft = bg_colors[STATUS_TRAFFIC_MODE_ACTIVE];
+    }
+
+    if (blindSpotRight) {
+      blindspotColorRight = bg_colors[STATUS_TRAFFIC_MODE_ACTIVE];
+    }
+
+    int xLeft = rect.x();
+    int xRight = rect.x() + rect.width() / 2;
+    QRect blindspotRectLeft(xLeft, rect.y(), rect.width() / 2, rect.height());
+    QRect blindspotRectRight(xRight, rect.y(), rect.width() / 2, rect.height());
+
+    p.fillRect(blindspotRectLeft, blindspotColorLeft);
+    p.fillRect(blindspotRectRight, blindspotColorRight);
+  }
 }
diff --git a/selfdrive/ui/qt/onroad/onroad_home.h b/selfdrive/ui/qt/onroad/onroad_home.h
index c903c36cf..509fb7fb1 100644
--- a/selfdrive/ui/qt/onroad/onroad_home.h
+++ b/selfdrive/ui/qt/onroad/onroad_home.h
@@ -25,6 +25,10 @@ private:
   QHBoxLayout* split;
 
   // FrogPilot variables
+  bool blindSpotLeft;
+  bool blindSpotRight;
+  bool showBlindspot;
+
   QPoint timeoutPoint = QPoint(420, 69);
 
   QTimer clickTimer;
diff --git a/selfdrive/ui/ui.cc b/selfdrive/ui/ui.cc
index 5a0c8ceb4..04fabec1a 100644
--- a/selfdrive/ui/ui.cc
+++ b/selfdrive/ui/ui.cc
@@ -338,6 +338,10 @@ void ui_update_frogpilot_params(UIState *s, Params &params) {
   scene.holiday_themes = custom_theme && params.getBool("HolidayThemes");
   scene.random_events = custom_theme && params.getBool("RandomEvents");
 
+  bool developer_ui = params.getBool("DeveloperUI");
+  bool border_metrics = developer_ui && params.getBool("BorderMetrics");
+  scene.show_blind_spot = border_metrics && params.getBool("BlindSpotMetrics");
+
   scene.disable_smoothing_mtsc = params.getBool("MTSCEnabled") && params.getBool("DisableMTSCSmoothing");
   scene.disable_smoothing_vtsc = params.getBool("VisionTurnControl") && params.getBool("DisableVTSCSmoothing");
 
diff --git a/selfdrive/ui/ui.h b/selfdrive/ui/ui.h
index 97d9325b8..a404ad21c 100644
--- a/selfdrive/ui/ui.h
+++ b/selfdrive/ui/ui.h
@@ -155,6 +155,7 @@ typedef struct UIScene {
   bool road_name_ui;
   bool rotating_wheel;
   bool show_aol_status_bar;
+  bool show_blind_spot;
   bool show_cem_status_bar;
   bool show_slc_offset;
   bool show_slc_offset_ui;