diff --git a/services/nginx/app/modules/subusers/helpers/subusers_permission_node_key.php b/services/nginx/app/modules/subusers/helpers/subusers_permission_node_key.php
index 26d672fc..43344998 100644
--- a/services/nginx/app/modules/subusers/helpers/subusers_permission_node_key.php
+++ b/services/nginx/app/modules/subusers/helpers/subusers_permission_node_key.php
@@ -11,6 +11,9 @@ enum subusers_permission_node_key
     case VEHICLES_ADD;
 
     /** Self-Serve */
+    case SELFSERVE_LIST;
+    case SELFSERVE_EDIT;
+    case SELFSERVE_DELETE;
     case SELFSERVE_ADD;
     /** Bookings */
     case BOOKINGS_LIST;
@@ -30,11 +33,14 @@ enum subusers_permission_node_key
     {
         return match (strtoupper($param)) {
             /** Vehicles */
-            'VEHCILES_LIST' => subusers_permission_node_key::VEHICLES_LIST,
-            'VEHCILES_EDIT' => subusers_permission_node_key::VEHICLES_EDIT,
-            'VEHCILES_DELETE' => subusers_permission_node_key::VEHICLES_DELETE,
-            'VEHCILES_ADD' => subusers_permission_node_key::VEHICLES_ADD,
+            'VEHICLES_LIST' => subusers_permission_node_key::VEHICLES_LIST,
+            'VEHICLES_EDIT' => subusers_permission_node_key::VEHICLES_EDIT,
+            'VEHICLES_DELETE' => subusers_permission_node_key::VEHICLES_DELETE,
+            'VEHICLES_ADD' => subusers_permission_node_key::VEHICLES_ADD,
             /** Self-Serve */
+            'SELFSERVE_LIST' => subusers_permission_node_key::SELFSERVE_LIST,
+            'SELFSERVE_EDIT' => subusers_permission_node_key::SELFSERVE_EDIT,
+            'SELFSERVE_DELETE' => subusers_permission_node_key::SELFSERVE_DELETE,
             'SELFSERVE_ADD' => subusers_permission_node_key::SELFSERVE_ADD,
             /** Bookings */
             'BOOKINGS_LIST' => subusers_permission_node_key::BOOKINGS_LIST,
diff --git a/services/nginx/app/modules/subusers/permissions/subusers_permission_nodes_selfserve.php b/services/nginx/app/modules/subusers/permissions/subusers_permission_nodes_selfserve.php
index 661f050e..2b5c6291 100644
--- a/services/nginx/app/modules/subusers/permissions/subusers_permission_nodes_selfserve.php
+++ b/services/nginx/app/modules/subusers/permissions/subusers_permission_nodes_selfserve.php
@@ -15,6 +15,9 @@ class subusers_permission_nodes_selfserve extends subusers_permission_nodes
             'Tilladelser til selvbetjening',
         );
 
-        $this->addNode(subusers_permission_node_key::SELFSERVE_ADD, 'Tilføj selvbetjening', 'Tilføj selvbetjening', subusers_permission_type::ADD, false);
+        $this->addNode(subusers_permission_node_key::SELFSERVE_LIST, 'Vis selvbetjening', 'Giver brugeren mulighed for at se selvbetjeningsrelaterede oplysninger', subusers_permission_type::VIEW, false);
+        $this->addNode(subusers_permission_node_key::SELFSERVE_EDIT, 'Rediger selvbetjening', 'Giver brugeren mulighed for at ændre selvbetjeningsrelaterede oplysninger', subusers_permission_type::EDIT, false);
+        $this->addNode(subusers_permission_node_key::SELFSERVE_DELETE, 'Slet selvbetjening', 'Giver brugeren mulighed for at slette selvbetjeningsrelaterede oplysninger', subusers_permission_type::DELETE, false);
+        $this->addNode(subusers_permission_node_key::SELFSERVE_ADD, 'Tilføj selvbetjening', 'Giver brugeren mulighed for at tilføje selvbetjeningsrelaterede oplysninger', subusers_permission_type::ADD, false);
     }
 }
\ No newline at end of file
diff --git a/services/nginx/app/routes/subusersRoute.php b/services/nginx/app/routes/subusersRoute.php
index 30c4ca49..d65bee7e 100644
--- a/services/nginx/app/routes/subusersRoute.php
+++ b/services/nginx/app/routes/subusersRoute.php
@@ -425,13 +425,29 @@ class subusersRoute
         // =============================
         $this->get('/subusers', function () {
             global $response;
-            // Require authenticated user
-            $user = (new authentication())->get_user();
-            if ($user === false) {
+            // Require authenticated principal (user or subuser)
+            $auth = new authentication();
+            $user = $auth->get_user();
+            $subuser = $auth->get_subuser();
+            if ($user === false && $subuser === false) {
                 $response->error('Unauthorized', 401);
             }
-            $customerNumber = (int)$user->customer_number->value();
-            if ($customerNumber === 0) {
+
+            // Link route permission to Subusers node so subusers can be constrained by grants.
+            // For classic users we keep current behavior (no extra user permission enforced here).
+            $permission_list = self::definePermission('list_own_subusers', subusers_permission_node_key::SUBUSERS_LIST);
+            if ($subuser !== false) {
+                // Only enforce for subuser principals; classic users are governed by existing user ACLs elsewhere.
+                self::requirePermission($permission_list);
+            }
+
+            // Determine effective customer number (user's customer number or subuser's target header)
+            if ($user !== false) {
+                $customerNumber = (int)$user->customer_number->value();
+            } else {
+                $customerNumber = (int)$auth->get_subuser_customer_number_target();
+            }
+            if (empty($customerNumber)) {
                 $response->error('Unauthorized', 401);
             }
 
diff --git a/services/nginx/app/routes/vehiclesRoute.php b/services/nginx/app/routes/vehiclesRoute.php
index b89ba0f4..8c31730e 100644
--- a/services/nginx/app/routes/vehiclesRoute.php
+++ b/services/nginx/app/routes/vehiclesRoute.php
@@ -57,6 +57,17 @@ class vehiclesRoute
             // Listing: restrict to effective customer when lacking the broader permission
             $vehicles_o = new customer_vehicles_o();
             $effectiveCustomer = self::resolveEffectiveCustomerNumber();
+            $permitted = self::allowOwnOrDepartmentAccess(
+                $permission_own,
+                $permission_other,
+                $effectiveCustomer,
+                null,
+                null,
+                'You do not have permission to view vehicles.'
+            );
+            if (!$permitted) {
+                $response->error('You do not have permission to view vehicles.');
+            }
             $response->success(
                 $vehicles_o->listObjectsWithPaginationIfSet(
                     function ($vehicle) {