diff --git a/vehicle-data-platform/apps/api/internal/platform/handler_test.go b/vehicle-data-platform/apps/api/internal/platform/handler_test.go
index 880586b7..645c036a 100644
--- a/vehicle-data-platform/apps/api/internal/platform/handler_test.go
+++ b/vehicle-data-platform/apps/api/internal/platform/handler_test.go
@@ -429,13 +429,13 @@ func TestHandlerVehicleServiceOverviewEndpoint(t *testing.T) {
 	if body.Data.SourceCount != 2 || body.Data.OnlineSourceCount != 1 || body.Data.CoverageStatus != "partial" {
 		t.Fatalf("overview endpoint should summarize vehicle service coverage, got %+v", body.Data)
 	}
-	if body.Data.ServiceStatus == nil || body.Data.ServiceStatus.Status != "degraded" || body.Data.ServiceStatus.Title != "部分来源离线" {
+	if body.Data.ServiceStatus == nil || body.Data.ServiceStatus.Status != "degraded" || body.Data.ServiceStatus.Title != "来源不完整" {
 		t.Fatalf("overview endpoint should expose canonical service status, got %+v", body.Data.ServiceStatus)
 	}
 	if body.Data.SourceConsistency == nil || body.Data.SourceConsistency.SourceCount != 2 || body.Data.SourceConsistency.OnlineSourceCount != 1 {
 		t.Fatalf("overview endpoint should expose source consistency, got %+v", body.Data.SourceConsistency)
 	}
-	if body.Data.SourceConsistency.Status != "degraded" || body.Data.SourceConsistency.Title != "部分来源离线" {
+	if body.Data.SourceConsistency.Status != "degraded" || body.Data.SourceConsistency.Title != "来源不完整" {
 		t.Fatalf("overview source consistency should expose diagnosis, got %+v", body.Data.SourceConsistency)
 	}
 	if strings.Contains(rec.Body.String(), `"raw"`) || strings.Contains(rec.Body.String(), `"history"`) {
@@ -468,8 +468,8 @@ func TestHandlerVehicleServiceSummaryEndpoint(t *testing.T) {
 	}
 	noDataStatusFound := false
 	for _, status := range body.Data.ServiceStatuses {
-		if status.Status == "degraded" && status.Title != "来源异常" {
-			t.Fatalf("summary degraded status should use broad source exception title, got %+v", status)
+		if status.Status == "degraded" && status.Title != "来源不完整" {
+			t.Fatalf("summary degraded status should use vehicle-service missing source title, got %+v", status)
 		}
 		if status.Status == "no_data" {
 			noDataStatusFound = true
diff --git a/vehicle-data-platform/apps/api/internal/platform/mock_store.go b/vehicle-data-platform/apps/api/internal/platform/mock_store.go
index 58e8db3b..bb896106 100644
--- a/vehicle-data-platform/apps/api/internal/platform/mock_store.go
+++ b/vehicle-data-platform/apps/api/internal/platform/mock_store.go
@@ -46,7 +46,7 @@ func (m *MockStore) DashboardSummary(context.Context) (DashboardSummary, error)
 		},
 		ServiceStatuses: []ServiceStatusStat{
 			{Status: "healthy", Title: "服务正常", Count: 2},
-			{Status: "degraded", Title: "来源异常", Count: 1},
+			{Status: "degraded", Title: "来源不完整", Count: 1},
 			{Status: "offline", Title: "车辆离线", Count: 1},
 			{Status: "identity_required", Title: "身份未绑定", Count: 0},
 		},
@@ -201,7 +201,7 @@ func (m *MockStore) VehicleServiceSummary(ctx context.Context) (VehicleServiceSu
 	}
 	statusCounts := map[string]*ServiceStatusStat{
 		"healthy":           {Status: "healthy", Title: "服务正常"},
-		"degraded":          {Status: "degraded", Title: "来源异常"},
+		"degraded":          {Status: "degraded", Title: "来源不完整"},
 		"offline":           {Status: "offline", Title: "车辆离线"},
 		"no_data":           {Status: "no_data", Title: "暂无数据来源"},
 		"identity_required": {Status: "identity_required", Title: "身份未绑定"},
diff --git a/vehicle-data-platform/apps/api/internal/platform/production_store.go b/vehicle-data-platform/apps/api/internal/platform/production_store.go
index 0600203c..36587823 100644
--- a/vehicle-data-platform/apps/api/internal/platform/production_store.go
+++ b/vehicle-data-platform/apps/api/internal/platform/production_store.go
@@ -76,7 +76,7 @@ func (s *ProductionStore) DashboardSummary(ctx context.Context) (DashboardSummar
 func (s *ProductionStore) serviceStatusStats(ctx context.Context) ([]ServiceStatusStat, error) {
 	definitions := []ServiceStatusStat{
 		{Status: "healthy", Title: "服务正常"},
-		{Status: "degraded", Title: "来源异常"},
+		{Status: "degraded", Title: "来源不完整"},
 		{Status: "offline", Title: "车辆离线"},
 		{Status: "no_data", Title: "暂无数据来源"},
 		{Status: "identity_required", Title: "身份未绑定"},
@@ -149,7 +149,7 @@ GROUP BY v.vin
 	}
 	summary.ServiceStatuses = []ServiceStatusStat{
 		{Status: "healthy", Title: "服务正常", Count: healthy},
-		{Status: "degraded", Title: "来源异常", Count: degraded},
+		{Status: "degraded", Title: "来源不完整", Count: degraded},
 		{Status: "offline", Title: "车辆离线", Count: offline},
 		{Status: "no_data", Title: "暂无数据来源", Count: summary.NoDataVehicles},
 		{Status: "identity_required", Title: "身份未绑定", Count: summary.IdentityRequiredVehicles},
diff --git a/vehicle-data-platform/apps/api/internal/platform/service.go b/vehicle-data-platform/apps/api/internal/platform/service.go
index dfc872d1..e419868a 100644
--- a/vehicle-data-platform/apps/api/internal/platform/service.go
+++ b/vehicle-data-platform/apps/api/internal/platform/service.go
@@ -492,7 +492,7 @@ func applyVehicleSourceConsistencyDiagnosis(consistency *VehicleSourceConsistenc
 	case consistency.OnlineSourceCount < consistency.SourceCount:
 		consistency.Status = "degraded"
 		consistency.Severity = "warning"
-		consistency.Title = "部分来源离线"
+		consistency.Title = "来源不完整"
 		consistency.Detail = sourceCoverageDetail(consistency.SourceCount, consistency.OnlineSourceCount, "车辆服务可用但需要关注离线来源。")
 	case consistency.MileageDeltaKm > 5:
 		consistency.Status = "mileage_divergent"
@@ -1013,7 +1013,7 @@ func buildVehicleServiceStatus(resolved bool, statuses []VehicleSourceStatus) *V
 		return &VehicleServiceStatus{
 			Status:            "degraded",
 			Severity:          "warning",
-			Title:             "部分来源离线",
+			Title:             "来源不完整",
 			Detail:            sourceCoverageDetail(sourceCount, onlineSourceCount, "车辆服务可用但需要关注离线来源。"),
 			SourceCount:       sourceCount,
 			OnlineSourceCount: onlineSourceCount,
@@ -1084,7 +1084,7 @@ func buildVehicleCoverageServiceStatus(row VehicleCoverageRow) *VehicleServiceSt
 		return &VehicleServiceStatus{
 			Status:            "degraded",
 			Severity:          "warning",
-			Title:             "部分来源离线",
+			Title:             "来源不完整",
 			Detail:            sourceCoverageDetail(row.SourceCount, row.OnlineSourceCount, "车辆服务可用但需要关注离线来源。"),
 			SourceCount:       row.SourceCount,
 			OnlineSourceCount: row.OnlineSourceCount,
diff --git a/vehicle-data-platform/apps/web/src/App.tsx b/vehicle-data-platform/apps/web/src/App.tsx
index 539a155f..aa67101b 100644
--- a/vehicle-data-platform/apps/web/src/App.tsx
+++ b/vehicle-data-platform/apps/web/src/App.tsx
@@ -462,7 +462,7 @@ function serviceStatusFromOverview(overview: VehicleServiceOverview): VehicleSer
     return {
       status: 'degraded',
       severity: 'warning',
-      title: '来源异常',
+      title: '来源不完整',
       detail: `${onlineSourceCount}/${sourceCount} 个来源在线，车辆服务可用但需要关注离线来源。`,
       sourceCount,
       onlineSourceCount
diff --git a/vehicle-data-platform/apps/web/src/api/client.test.ts b/vehicle-data-platform/apps/web/src/api/client.test.ts
index 5ec5aa48..ede961c9 100644
--- a/vehicle-data-platform/apps/web/src/api/client.test.ts
+++ b/vehicle-data-platform/apps/web/src/api/client.test.ts
@@ -87,7 +87,7 @@ test('vehicleServiceOverview sends keyword to the lightweight overview endpoint'
         serviceStatus: {
           status: 'degraded',
           severity: 'warning',
-          title: '部分来源离线',
+          title: '来源不完整',
           detail: '1/2 个来源在线',
           sourceCount: 2,
           onlineSourceCount: 1
diff --git a/vehicle-data-platform/apps/web/src/pages/Dashboard.tsx b/vehicle-data-platform/apps/web/src/pages/Dashboard.tsx
index c25402c5..e33c61e2 100644
--- a/vehicle-data-platform/apps/web/src/pages/Dashboard.tsx
+++ b/vehicle-data-platform/apps/web/src/pages/Dashboard.tsx
@@ -24,7 +24,7 @@ const serviceStatusColor: Record<string, 'green' | 'orange' | 'red' | 'grey'> =
 
 const serviceStatusTitle: Record<string, string> = {
   healthy: '服务正常',
-  degraded: '来源异常',
+  degraded: '来源不完整',
   offline: '车辆离线',
   no_data: '暂无数据来源',
   identity_required: '身份未绑定'
@@ -62,7 +62,7 @@ function rowServiceStatus(row: { serviceStatus?: { title: string; severity: stri
     return { label: '车辆离线', color: 'red' as const };
   }
   if (row.onlineSourceCount < row.sourceCount) {
-    return { label: '来源异常', color: 'orange' as const };
+    return { label: '来源不完整', color: 'orange' as const };
   }
   return { label: '服务正常', color: 'green' as const };
 }
@@ -312,7 +312,7 @@ export function Dashboard({ onOpenVehicle, onOpenQuality, onOpenVehicles }: { on
             </Form.Select>
             <Form.Select field="serviceStatus" label="服务状态" placeholder="全部" style={{ width: 150 }} data-testid="dashboard-service-status-filter">
               <Select.Option value="healthy">服务正常</Select.Option>
-              <Select.Option value="degraded">来源异常</Select.Option>
+              <Select.Option value="degraded">来源不完整</Select.Option>
               <Select.Option value="offline">车辆离线</Select.Option>
               <Select.Option value="no_data">暂无数据来源</Select.Option>
               <Select.Option value="identity_required">身份未绑定</Select.Option>
diff --git a/vehicle-data-platform/apps/web/src/pages/Realtime.tsx b/vehicle-data-platform/apps/web/src/pages/Realtime.tsx
index 7c1763bd..88f364c4 100644
--- a/vehicle-data-platform/apps/web/src/pages/Realtime.tsx
+++ b/vehicle-data-platform/apps/web/src/pages/Realtime.tsx
@@ -23,7 +23,7 @@ function vehicleServiceStatus(row: VehicleRealtimeRow) {
     return { label: '车辆离线', color: 'red' as const };
   }
   if (row.onlineSourceCount < row.sourceCount) {
-    return { label: '来源异常', color: 'orange' as const };
+    return { label: '来源不完整', color: 'orange' as const };
   }
   return { label: '服务正常', color: 'green' as const };
 }
@@ -93,7 +93,7 @@ export function Realtime({
           </Form.Select>
           <Form.Select field="serviceStatus" label="服务状态" placeholder="全部" style={{ width: 150 }}>
             <Select.Option value="healthy">服务正常</Select.Option>
-            <Select.Option value="degraded">来源异常</Select.Option>
+            <Select.Option value="degraded">来源不完整</Select.Option>
             <Select.Option value="offline">车辆离线</Select.Option>
             <Select.Option value="identity_required">身份未绑定</Select.Option>
           </Form.Select>
diff --git a/vehicle-data-platform/apps/web/src/pages/Vehicles.tsx b/vehicle-data-platform/apps/web/src/pages/Vehicles.tsx
index 595e3eca..524803ec 100644
--- a/vehicle-data-platform/apps/web/src/pages/Vehicles.tsx
+++ b/vehicle-data-platform/apps/web/src/pages/Vehicles.tsx
@@ -25,7 +25,7 @@ function vehicleServiceStatus(row: VehicleCoverageRow) {
     return { label: '车辆离线', color: 'red' as const };
   }
   if (row.onlineSourceCount < row.sourceCount) {
-    return { label: '来源异常', color: 'orange' as const };
+    return { label: '来源不完整', color: 'orange' as const };
   }
   return { label: '服务正常', color: 'green' as const };
 }
@@ -227,7 +227,7 @@ export function Vehicles({
           </Form.Select>
           <Form.Select field="serviceStatus" label="服务状态" placeholder="全部" style={{ width: 150 }} data-testid="service-status-filter">
             <Select.Option value="healthy">服务正常</Select.Option>
-            <Select.Option value="degraded">来源异常</Select.Option>
+            <Select.Option value="degraded">来源不完整</Select.Option>
             <Select.Option value="offline">车辆离线</Select.Option>
             <Select.Option value="no_data">暂无数据来源</Select.Option>
             <Select.Option value="identity_required">身份未绑定</Select.Option>
diff --git a/vehicle-data-platform/apps/web/src/test/App.test.tsx b/vehicle-data-platform/apps/web/src/test/App.test.tsx
index d8dc4535..2acaa57c 100644
--- a/vehicle-data-platform/apps/web/src/test/App.test.tsx
+++ b/vehicle-data-platform/apps/web/src/test/App.test.tsx
@@ -31,7 +31,7 @@ test('shows vehicle service status distribution on dashboard', async () => {
             protocols: [],
             serviceStatuses: [
               { status: 'healthy', title: '服务正常', count: 12 },
-              { status: 'degraded', title: '部分来源离线', count: 39 }
+              { status: 'degraded', title: '来源不完整', count: 39 }
             ],
             linkHealth: []
           },
@@ -53,7 +53,7 @@ test('shows vehicle service status distribution on dashboard', async () => {
   render(<App />);
 
   expect(await screen.findByText('车辆服务状态')).toBeInTheDocument();
-  expect(screen.getByText('部分来源离线')).toBeInTheDocument();
+  expect(screen.getByText('来源不完整')).toBeInTheDocument();
   expect(screen.getByText('39')).toBeInTheDocument();
 });
 
@@ -94,7 +94,7 @@ test('dashboard renders vehicle service summary metrics', async () => {
             identityRequiredVehicles: 9,
             serviceStatuses: [
               { status: 'healthy', title: '服务正常', count: 161 },
-              { status: 'degraded', title: '部分来源离线', count: 41 }
+              { status: 'degraded', title: '来源不完整', count: 41 }
             ],
             protocols: [
               { protocol: 'JT808', online: 157, total: 388 },
@@ -310,7 +310,7 @@ test('shows vehicle service result summary on vehicle list filters', async () =>
               serviceStatus: {
                 status: 'degraded',
                 severity: 'warning',
-                title: '部分来源离线',
+                title: '来源不完整',
                 detail: '1/2 个来源在线',
                 sourceCount: 2,
                 onlineSourceCount: 1
@@ -913,7 +913,7 @@ test('filters dashboard coverage from source consistency diagnosis', async () =>
     expect(fetchMock).toHaveBeenCalledWith(expect.stringContaining('serviceStatus=degraded'), undefined);
   });
   expect(fetchMock).toHaveBeenCalledWith(expect.stringContaining('missingProtocol=JT808'), undefined);
-  expect(screen.getByText('当前筛选：来源异常 / 缺 JT808')).toBeInTheDocument();
+  expect(screen.getByText('当前筛选：来源不完整 / 缺 JT808')).toBeInTheDocument();
 });
 
 test('opens full vehicle service list from dashboard coverage filters', async () => {
@@ -1251,13 +1251,13 @@ test('filters dashboard coverage by service status', async () => {
 
   expect(await screen.findByText('车辆服务覆盖')).toBeInTheDocument();
   fireEvent.click(screen.getByTestId('dashboard-service-status-filter'));
-  fireEvent.click(await screen.findByText('来源异常'));
+  fireEvent.click(await screen.findByText('来源不完整'));
   fireEvent.click(screen.getByRole('button', { name: '筛选' }));
 
   await waitFor(() => {
     expect(fetchMock).toHaveBeenCalledWith(expect.stringContaining('serviceStatus=degraded'), undefined);
   });
-  expect(screen.getByText('当前筛选：来源异常')).toBeInTheDocument();
+  expect(screen.getByText('当前筛选：来源不完整')).toBeInTheDocument();
 });
 
 test('filters dashboard coverage by missing source evidence', async () => {
@@ -1322,7 +1322,7 @@ test('opens dashboard coverage from service status distribution', async () => {
             kafkaLag: 0,
             protocols: [],
             serviceStatuses: [
-              { status: 'degraded', title: '部分来源离线', count: 39 }
+              { status: 'degraded', title: '来源不完整', count: 39 }
             ],
             linkHealth: []
           },
@@ -1343,7 +1343,7 @@ test('opens dashboard coverage from service status distribution', async () => {
 
   render(<App />);
 
-  fireEvent.click(await screen.findByRole('button', { name: '查看部分来源离线' }));
+  fireEvent.click(await screen.findByRole('button', { name: '查看来源不完整' }));
 
   await waitFor(() => {
     expect(fetchMock).toHaveBeenCalledWith(expect.stringContaining('serviceStatus=degraded'), undefined);
@@ -1816,7 +1816,7 @@ test('shows vehicle context when opening detail from shareable hash', async () =
   render(<App />);
 
   expect(await screen.findByText('粤AG18312 / VIN001')).toBeInTheDocument();
-  expect(screen.getByText('当前车辆：来源异常')).toBeInTheDocument();
+  expect(screen.getByText('当前车辆：来源不完整')).toBeInTheDocument();
 });
 
 test('refreshes vehicle context when hash changes to another detail vehicle', async () => {
@@ -2769,7 +2769,7 @@ test('shows canonical service status in realtime vehicles', async () => {
               serviceStatus: {
                 status: 'degraded',
                 severity: 'warning',
-                title: '部分来源离线',
+                title: '来源不完整',
                 detail: '由实时车辆 API 统一判定',
                 sourceCount: 2,
                 onlineSourceCount: 1
@@ -2797,7 +2797,7 @@ test('shows canonical service status in realtime vehicles', async () => {
   render(<App />);
 
   expect(await screen.findByText('VIN-RT-DEGRADED')).toBeInTheDocument();
-  expect(screen.getByText('部分来源离线')).toBeInTheDocument();
+  expect(screen.getByText('来源不完整')).toBeInTheDocument();
 });
 
 test('frames realtime page as one vehicle service with source evidence', async () => {
@@ -2983,7 +2983,7 @@ test('shows vehicle service status in vehicle list', async () => {
               serviceStatus: {
                 status: 'degraded',
                 severity: 'warning',
-                title: '部分来源离线',
+                title: '来源不完整',
                 detail: '由车辆服务 API 统一判定',
                 sourceCount: 2,
                 onlineSourceCount: 1
@@ -3014,7 +3014,7 @@ test('shows vehicle service status in vehicle list', async () => {
 
   expect(await screen.findByText('VIN-DEGRADED-001')).toBeInTheDocument();
   expect(screen.getByText('车辆服务状态')).toBeInTheDocument();
-  expect(screen.getByText('部分来源离线')).toBeInTheDocument();
+  expect(screen.getByText('来源不完整')).toBeInTheDocument();
 });
 
 test('shows source consistency diagnosis in vehicle service list', async () => {
@@ -3373,7 +3373,7 @@ test('filters vehicle list by service status', async () => {
 
   await screen.findByRole('heading', { name: '车辆服务' });
   fireEvent.click(screen.getByTestId('service-status-filter'));
-  fireEvent.click(await screen.findByText('来源异常'));
+  fireEvent.click(await screen.findByText('来源不完整'));
   fireEvent.click(screen.getByRole('button', { name: '查询' }));
 
   await waitFor(() => {
@@ -3500,7 +3500,7 @@ test('shows unified service overview on vehicle detail', async () => {
             serviceStatus: {
               status: 'degraded',
               severity: 'warning',
-              title: '部分来源离线',
+              title: '来源不完整',
               detail: '2/3 个来源在线',
               sourceCount: 3,
               onlineSourceCount: 2
@@ -3569,7 +3569,7 @@ test('shows vehicle service evidence chain before source details', async () => {
             serviceStatus: {
               status: 'degraded',
               severity: 'warning',
-              title: '部分来源离线',
+              title: '来源不完整',
               detail: '2/3 个来源在线',
               sourceCount: 3,
               onlineSourceCount: 2
@@ -3583,7 +3583,7 @@ test('shows vehicle service evidence chain before source details', async () => {
               scope: 'vehicle',
               status: 'degraded',
               severity: 'warning',
-              title: '部分来源离线',
+              title: '来源不完整',
               detail: 'MQTT 离线，32960 与 808 仍可支撑车辆服务'
             },
             sources: ['GB32960', 'JT808', 'YUTONG_MQTT'],
@@ -4145,7 +4145,7 @@ test('shows selected source scope on vehicle detail', async () => {
             serviceStatus: {
               status: 'degraded',
               severity: 'warning',
-              title: '部分来源离线',
+              title: '来源不完整',
               detail: '1/2 个来源在线，车辆服务可用但需要关注离线来源。',
               sourceCount: 2,
               onlineSourceCount: 1
@@ -4178,7 +4178,7 @@ test('shows selected source scope on vehicle detail', async () => {
   expect(await screen.findByText('当前查看范围')).toBeInTheDocument();
   expect(screen.getByText('单一来源：JT808')).toBeInTheDocument();
   expect(screen.getByText('车辆服务状态')).toBeInTheDocument();
-  expect(screen.getByText('部分来源离线')).toBeInTheDocument();
+  expect(screen.getByText('来源不完整')).toBeInTheDocument();
   expect(fetchMock).toHaveBeenCalledWith(expect.stringContaining('/api/vehicle-service?keyword=VIN001&protocol=JT808'), undefined);
 });