diff --git a/backend/src/database/migrations/063_fahrzeugbuchungen_feature_group.sql b/backend/src/database/migrations/063_fahrzeugbuchungen_feature_group.sql
new file mode 100644
index 0000000..52bc859
--- /dev/null
+++ b/backend/src/database/migrations/063_fahrzeugbuchungen_feature_group.sql
@@ -0,0 +1,63 @@
+-- Migration 063: Split fahrzeugbuchungen into its own feature group
+-- Moves kalender:view_bookings, kalender:manage_bookings, kalender:widget_bookings
+-- into a new 'fahrzeugbuchungen' feature group with cleaner permission names.
+
+-- 1. Add new feature group
+INSERT INTO feature_groups (id, label, sort_order)
+VALUES ('fahrzeugbuchungen', 'Fahrzeugbuchungen', 2)
+ON CONFLICT (id) DO NOTHING;
+
+-- Shift existing groups down to make room (kalender stays 1, fahrzeugbuchungen is 2)
+UPDATE feature_groups SET sort_order = sort_order + 1
+WHERE id NOT IN ('kalender', 'fahrzeugbuchungen') AND sort_order >= 2;
+
+-- 2. Add new permissions
+INSERT INTO permissions (id, feature_group_id, label, description, sort_order) VALUES
+  ('fahrzeugbuchungen:view',   'fahrzeugbuchungen', 'Ansehen',        'Buchungsliste anzeigen',                  1),
+  ('fahrzeugbuchungen:create', 'fahrzeugbuchungen', 'Erstellen',      'Neue Fahrzeugbuchungen anlegen',           2),
+  ('fahrzeugbuchungen:manage', 'fahrzeugbuchungen', 'Verwalten',      'Buchungen bearbeiten, stornieren, löschen; Kategorien verwalten', 3),
+  ('fahrzeugbuchungen:widget', 'fahrzeugbuchungen', 'Widget',         'Dashboard-Widget für Fahrzeugbuchungen',   4)
+ON CONFLICT (id) DO NOTHING;
+
+-- 3. Migrate existing group_permissions
+--    kalender:view_bookings  → fahrzeugbuchungen:view
+--    kalender:manage_bookings → fahrzeugbuchungen:manage + fahrzeugbuchungen:create + fahrzeugbuchungen:view
+--    kalender:widget_bookings → fahrzeugbuchungen:widget
+
+INSERT INTO group_permissions (authentik_group, permission_id)
+SELECT authentik_group, 'fahrzeugbuchungen:view'
+FROM group_permissions
+WHERE permission_id = 'kalender:view_bookings'
+ON CONFLICT DO NOTHING;
+
+INSERT INTO group_permissions (authentik_group, permission_id)
+SELECT authentik_group, 'fahrzeugbuchungen:create'
+FROM group_permissions
+WHERE permission_id = 'kalender:manage_bookings'
+ON CONFLICT DO NOTHING;
+
+INSERT INTO group_permissions (authentik_group, permission_id)
+SELECT authentik_group, 'fahrzeugbuchungen:manage'
+FROM group_permissions
+WHERE permission_id = 'kalender:manage_bookings'
+ON CONFLICT DO NOTHING;
+
+INSERT INTO group_permissions (authentik_group, permission_id)
+SELECT authentik_group, 'fahrzeugbuchungen:view'
+FROM group_permissions
+WHERE permission_id = 'kalender:manage_bookings'
+ON CONFLICT DO NOTHING;
+
+INSERT INTO group_permissions (authentik_group, permission_id)
+SELECT authentik_group, 'fahrzeugbuchungen:widget'
+FROM group_permissions
+WHERE permission_id = 'kalender:widget_bookings'
+ON CONFLICT DO NOTHING;
+
+-- 4. Remove old kalender booking permissions
+DELETE FROM group_permissions WHERE permission_id IN (
+  'kalender:view_bookings', 'kalender:manage_bookings', 'kalender:widget_bookings'
+);
+DELETE FROM permissions WHERE id IN (
+  'kalender:view_bookings', 'kalender:manage_bookings', 'kalender:widget_bookings'
+);
diff --git a/frontend/src/components/admin/PermissionMatrixTab.tsx b/frontend/src/components/admin/PermissionMatrixTab.tsx
index b6b7d2d..0df72d7 100644
--- a/frontend/src/components/admin/PermissionMatrixTab.tsx
+++ b/frontend/src/components/admin/PermissionMatrixTab.tsx
@@ -91,7 +91,10 @@ function buildReverseHierarchy(hierarchy: Record<string, string[]>): Record<stri
 const PERMISSION_SUB_GROUPS: Record<string, Record<string, string[]>> = {
   kalender: {
     'Termine': ['view', 'create'],
-    'Buchungen': ['view_bookings', 'manage_bookings'],
+  },
+  fahrzeugbuchungen: {
+    'Buchungen': ['view', 'create', 'manage'],
+    'Widget': ['widget'],
   },
   bestellungen: {
     'Bestellungen': ['view', 'create', 'manage_orders', 'delete', 'export'],
diff --git a/frontend/src/pages/BookingFormPage.tsx b/frontend/src/pages/BookingFormPage.tsx
index 6181c86..93bbcb5 100644
--- a/frontend/src/pages/BookingFormPage.tsx
+++ b/frontend/src/pages/BookingFormPage.tsx
@@ -26,6 +26,8 @@ import {
 import { useQuery } from '@tanstack/react-query';
 import { useParams, useNavigate } from 'react-router-dom';
 import DashboardLayout from '../components/dashboard/DashboardLayout';
+import ServiceModePage from '../components/shared/ServiceModePage';
+import { usePermissionContext } from '../contexts/PermissionContext';
 import { useNotification } from '../contexts/NotificationContext';
 import { bookingApi, fetchVehicles, kategorieApi } from '../services/bookings';
 import type { CreateBuchungInput, BuchungsArt } from '../types/booking.types';
@@ -46,6 +48,7 @@ const EMPTY_FORM: CreateBuchungInput = {
 function BookingFormPage() {
   const { id } = useParams<{ id: string }>();
   const navigate = useNavigate();
+  const { isFeatureEnabled } = usePermissionContext();
   const notification = useNotification();
   const isEdit = Boolean(id);
 
@@ -231,6 +234,9 @@ function BookingFormPage() {
 
   return (
     <DashboardLayout>
+      {!isFeatureEnabled('fahrzeugbuchungen') ? (
+        <ServiceModePage message="Fahrzeugbuchungen befinden sich aktuell im Wartungsmodus." />
+      ) : (
       <Box sx={{ p: 3 }}>
         <Box sx={{ display: 'flex', alignItems: 'center', mb: 3 }}>
           <IconButton onClick={() => navigate('/fahrzeugbuchungen')}>
@@ -537,6 +543,7 @@ function BookingFormPage() {
           </Box>
         </Paper>
       </Box>
+      )}
     </DashboardLayout>
   );
 }
diff --git a/frontend/src/pages/FahrzeugBuchungen.tsx b/frontend/src/pages/FahrzeugBuchungen.tsx
index a45c491..fafa48e 100644
--- a/frontend/src/pages/FahrzeugBuchungen.tsx
+++ b/frontend/src/pages/FahrzeugBuchungen.tsx
@@ -48,6 +48,7 @@ import { useNavigate } from 'react-router-dom';
 import { format, parseISO } from 'date-fns';
 import DashboardLayout from '../components/dashboard/DashboardLayout';
 import ChatAwareFab from '../components/shared/ChatAwareFab';
+import ServiceModePage from '../components/shared/ServiceModePage';
 import { useAuth } from '../contexts/AuthContext';
 import { usePermissionContext } from '../contexts/PermissionContext';
 import { useNotification } from '../contexts/NotificationContext';
@@ -93,7 +94,7 @@ function getCategoryLabel(buchungsArt: BuchungsArt, kategorien: BuchungsKategori
 
 function FahrzeugBuchungen() {
   const { user } = useAuth();
-  const { hasPermission } = usePermissionContext();
+  const { hasPermission, isFeatureEnabled } = usePermissionContext();
   const notification = useNotification();
   const navigate = useNavigate();
   const queryClient = useQueryClient();
@@ -230,6 +231,10 @@ function FahrzeugBuchungen() {
   });
 
   // ── Render ─────────────────────────────────────────────────────────────────
+  if (!isFeatureEnabled('fahrzeugbuchungen')) {
+    return <ServiceModePage message="Fahrzeugbuchungen befinden sich aktuell im Wartungsmodus." />;
+  }
+
   return (
     <DashboardLayout>
       <Container maxWidth="xl" sx={{ py: 3 }}>
diff --git a/frontend/src/pages/Kalender.tsx b/frontend/src/pages/Kalender.tsx
index 0a7ce59..a45cf61 100644
--- a/frontend/src/pages/Kalender.tsx
+++ b/frontend/src/pages/Kalender.tsx
@@ -64,6 +64,7 @@ import {
 } from '@mui/icons-material';
 import { useNavigate } from 'react-router-dom';
 import DashboardLayout from '../components/dashboard/DashboardLayout';
+import ServiceModePage from '../components/shared/ServiceModePage';
 import ChatAwareFab from '../components/shared/ChatAwareFab';
 import { toGermanDateTime, fromGermanDate, fromGermanDateTime } from '../utils/dateInput';
 
@@ -1625,7 +1626,7 @@ function VeranstaltungFormDialog({
 
 export default function Kalender() {
   const navigate = useNavigate();
-  const { hasPermission } = usePermissionContext();
+  const { hasPermission, isFeatureEnabled } = usePermissionContext();
   const notification = useNotification();
   const theme = useTheme();
   const isMobile = useMediaQuery(theme.breakpoints.down('sm'));
@@ -1873,6 +1874,10 @@ export default function Kalender() {
 
   // ── Render ───────────────────────────────────────────────────────────────────
 
+  if (!isFeatureEnabled('kalender')) {
+    return <ServiceModePage message="Der Kalender befindet sich aktuell im Wartungsmodus." />;
+  }
+
   return (
     <DashboardLayout>
       <Box sx={{ maxWidth: 1100, mx: 'auto' }}>