diff --git a/openpilot/selfdrive/ui/sunnypilot/layouts/sidebar.py b/openpilot/selfdrive/ui/sunnypilot/layouts/sidebar.py
index 2c670fa221..7c74c48469 100644
--- a/openpilot/selfdrive/ui/sunnypilot/layouts/sidebar.py
+++ b/openpilot/selfdrive/ui/sunnypilot/layouts/sidebar.py
@@ -94,7 +94,7 @@ class SidebarSP:
       return default_img, default_pos, 1.0
 
     big_model_selected = ui_state.usbgpu_compiled or ui_state.model_runner_tinygrad
-    big_model_failed = ui_state.started and (ui_state.usbgpu_active is False)
+    big_model_failed = ui_state.started and ui_state.big_model_failed
     loading = ui_state.usbgpu_loading or (big_model_selected and ui_state.started and ui_state.usbgpu_active is None)
 
     if loading:
diff --git a/openpilot/selfdrive/ui/sunnypilot/mici/layouts/home.py b/openpilot/selfdrive/ui/sunnypilot/mici/layouts/home.py
index e2f1b4fb67..b261373947 100644
--- a/openpilot/selfdrive/ui/sunnypilot/mici/layouts/home.py
+++ b/openpilot/selfdrive/ui/sunnypilot/mici/layouts/home.py
@@ -37,7 +37,7 @@ class MiciHomeLayoutSP(MiciHomeLayout):
       return
 
     big_model_selected = ui_state.usbgpu_compiled or ui_state.model_runner_tinygrad
-    big_model_failed = ui_state.started and (ui_state.usbgpu_active is False)
+    big_model_failed = ui_state.started and ui_state.big_model_failed
     loading = ui_state.usbgpu_loading or (big_model_selected and ui_state.started and ui_state.usbgpu_active is None)
 
     if loading:
diff --git a/openpilot/selfdrive/ui/ui_state.py b/openpilot/selfdrive/ui/ui_state.py
index e0aca74ff2..7e2a2494ea 100644
--- a/openpilot/selfdrive/ui/ui_state.py
+++ b/openpilot/selfdrive/ui/ui_state.py
@@ -112,6 +112,15 @@ class UIState(UIStateSP):
   def add_on_body_changed_callbacks(self, callback: Callable[[], None]):
     self._on_body_changed_callbacks.append(callback)
 
+  @property
+  def big_model_failed(self) -> bool:
+    # Mirrors the onroad HUD's four-condition check so sidebar and home icons reflect the same failure states
+    return (self.usbgpu_active is False or
+            not self.sm['deviceState'].chestnutPresent or
+            (self.usbgpu_active is True and self.sm.recv_frame['modelV2'] > self.started_frame and
+             not self.sm.alive['modelV2']) or
+            (self.usbgpu_active is None and self.sm.recv_frame['modelV2'] > self.started_frame))
+
   @property
   def engaged(self) -> bool:
     return self.started and (self.sm["selfdriveState"].enabled or self.sm["selfdriveStateSP"].mads.enabled)