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 712730e1..1b6e74d3 100644
--- a/vehicle-data-platform/apps/web/src/test/App.test.tsx
+++ b/vehicle-data-platform/apps/web/src/test/App.test.tsx
@@ -464,6 +464,173 @@ test('shows vehicle context when opening detail from shareable hash', async () =
   expect(screen.getByText('当前车辆：部分来源离线')).toBeInTheDocument();
 });
 
+test('refreshes vehicle context when hash changes to another detail vehicle', async () => {
+  window.history.replaceState(null, '', '/#/dashboard');
+  vi.spyOn(globalThis, 'fetch').mockImplementation(async (input) => {
+    const path = String(input);
+    if (path.includes('/api/vehicles/resolve')) {
+      return {
+        ok: true,
+        json: async () => ({
+          data: {
+            lookupKey: 'VIN002',
+            resolved: true,
+            vin: 'VIN002',
+            plate: '粤B20002',
+            phone: '',
+            oem: 'G7s',
+            protocols: ['JT808'],
+            online: false,
+            lastSeen: '2026-07-03 20:10:10',
+            serviceStatus: {
+              status: 'offline',
+              severity: 'error',
+              title: '车辆离线',
+              detail: '所有已知数据来源均未在线',
+              sourceCount: 1,
+              onlineSourceCount: 0
+            }
+          },
+          traceId: 'trace-test',
+          timestamp: 1783094400000
+        })
+      } as Response;
+    }
+    if (path.includes('/api/dashboard/summary')) {
+      return {
+        ok: true,
+        json: async () => ({
+          data: { onlineVehicles: 3, activeToday: 4, frameToday: 1286320, issueVehicles: 7, kafkaLag: 0, protocols: [], serviceStatuses: [], linkHealth: [] },
+          traceId: 'trace-test',
+          timestamp: 1783094400000
+        })
+      } as Response;
+    }
+    if (path.includes('/api/vehicle-service')) {
+      return {
+        ok: true,
+        json: async () => ({
+          data: {
+            vin: 'VIN002',
+            lookupKey: 'VIN002',
+            lookupResolved: true,
+            sources: ['JT808'],
+            sourceStatus: [],
+            realtime: [],
+            history: { items: [], total: 0, limit: 20, offset: 0 },
+            raw: { items: [], total: 0, limit: 10, offset: 0 },
+            mileage: { items: [], total: 0, limit: 20, offset: 0 },
+            quality: { items: [], total: 0, limit: 20, offset: 0 }
+          },
+          traceId: 'trace-test',
+          timestamp: 1783094400000
+        })
+      } as Response;
+    }
+    return {
+      ok: true,
+      json: async () => ({
+        data: path.includes('/api/ops/health')
+          ? { linkHealth: [], kafkaLag: 0, redisOnlineKeys: 0, tdengineWritable: true, mysqlWritable: true, runtime: { requestTimeoutMs: 5000 } }
+          : { items: [], total: 0, limit: 10, offset: 0 },
+        traceId: 'trace-test',
+        timestamp: 1783094400000
+      })
+    } as Response;
+  });
+
+  render(<App />);
+
+  window.history.pushState(null, '', '/#/detail?keyword=VIN002');
+  window.dispatchEvent(new HashChangeEvent('hashchange'));
+
+  expect(await screen.findByText('粤B20002 / VIN002')).toBeInTheDocument();
+  expect(screen.getByText('当前车辆：车辆离线')).toBeInTheDocument();
+});
+
+test('shows vehicle context when opening detail from sidebar navigation', async () => {
+  window.history.replaceState(null, '', '/#/dashboard');
+  vi.spyOn(globalThis, 'fetch').mockImplementation(async (input) => {
+    const path = String(input);
+    if (path.includes('/api/vehicles/resolve')) {
+      return {
+        ok: true,
+        json: async () => ({
+          data: {
+            lookupKey: 'LB9A32A24R0LS1426',
+            resolved: true,
+            vin: 'LB9A32A24R0LS1426',
+            plate: '粤AGQ8398',
+            phone: '',
+            oem: 'G7s',
+            protocols: ['JT808'],
+            online: false,
+            lastSeen: '2026-07-03 20:10:10',
+            serviceStatus: {
+              status: 'offline',
+              severity: 'error',
+              title: '车辆离线',
+              detail: '所有已知数据来源均未在线',
+              sourceCount: 1,
+              onlineSourceCount: 0
+            }
+          },
+          traceId: 'trace-test',
+          timestamp: 1783094400000
+        })
+      } as Response;
+    }
+    if (path.includes('/api/dashboard/summary')) {
+      return {
+        ok: true,
+        json: async () => ({
+          data: { onlineVehicles: 3, activeToday: 4, frameToday: 1286320, issueVehicles: 7, kafkaLag: 0, protocols: [], serviceStatuses: [], linkHealth: [] },
+          traceId: 'trace-test',
+          timestamp: 1783094400000
+        })
+      } as Response;
+    }
+    if (path.includes('/api/vehicle-service')) {
+      return {
+        ok: true,
+        json: async () => ({
+          data: {
+            vin: 'LB9A32A24R0LS1426',
+            lookupKey: 'LB9A32A24R0LS1426',
+            lookupResolved: true,
+            sources: ['JT808'],
+            sourceStatus: [],
+            realtime: [],
+            history: { items: [], total: 0, limit: 20, offset: 0 },
+            raw: { items: [], total: 0, limit: 10, offset: 0 },
+            mileage: { items: [], total: 0, limit: 20, offset: 0 },
+            quality: { items: [], total: 0, limit: 20, offset: 0 }
+          },
+          traceId: 'trace-test',
+          timestamp: 1783094400000
+        })
+      } as Response;
+    }
+    return {
+      ok: true,
+      json: async () => ({
+        data: path.includes('/api/ops/health')
+          ? { linkHealth: [], kafkaLag: 0, redisOnlineKeys: 0, tdengineWritable: true, mysqlWritable: true, runtime: { requestTimeoutMs: 5000 } }
+          : { items: [], total: 0, limit: 10, offset: 0 },
+        traceId: 'trace-test',
+        timestamp: 1783094400000
+      })
+    } as Response;
+  });
+
+  render(<App />);
+
+  fireEvent.click(screen.getAllByText('车辆详情')[0]);
+
+  expect(await screen.findByText('粤AGQ8398 / LB9A32A24R0LS1426')).toBeInTheDocument();
+  expect(screen.getByText('当前车辆：车辆离线')).toBeInTheDocument();
+});
+
 test('applies protocol from shareable history hash to API requests', async () => {
   window.history.replaceState(null, '', '/#/history?keyword=%E7%B2%A4AG18312&protocol=JT808');
   const fetchMock = vi.spyOn(globalThis, 'fetch').mockImplementation(async (input, init) => {