diff --git a/openapi.yaml b/openapi.yaml
index 5107c46d..8adcc9da 100644
--- a/openapi.yaml
+++ b/openapi.yaml
@@ -3940,6 +3940,10 @@ paths:
       responses:
         '200':
           description: Lane status retrieved successfully
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/SelfServeLaneStatus'
 
   /modules/self-serve/lane/command:
     post:
@@ -3962,10 +3966,17 @@ paths:
                   type: integer
                 command:
                   type: string
-                  enum: [start, stop, reset]
+                  enum: [START, STOP, RESET, RESERVE, RELEASE]
+                license_plate:
+                  type: string
+                  description: Required for START command
       responses:
         '200':
           description: Command sent successfully
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/SelfServeLaneStatus'
 
   # Module - Other Integration Endpoints
   /modules/motorapi/lookup:
@@ -4515,13 +4526,29 @@ paths:
       summary: Get Self-Serve config
       operationId: getSelfServeConfig
       responses:
-        '200': {description: Success}
+        '200':
+          description: Self-serve configuration retrieved successfully
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/SelfServeConfig'
     post:
       tags: [Config]
       summary: Update Self-Serve config
       operationId: updateSelfServeConfig
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/SelfServeConfig'
       responses:
-        '200': {description: Success}
+        '200':
+          description: Self-serve configuration updated successfully
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/SelfServeConfig'
 
   /branding:
     get:
@@ -5153,6 +5180,48 @@ components:
           type: string
           format: date-time
 
+    SelfServeLaneStatus:
+      type: object
+      properties:
+        id:
+          type: integer
+          description: Lane ID
+        status:
+          type: string
+          description: Current lane status (e.g., IDLE, OCCUPIED)
+        mode:
+          type: string
+          description: Current lane mode (e.g., AUTOMATIC, MANUAL)
+        state:
+          type: string
+          description: Current lane state (e.g., READY, WASHING)
+        wash_start_time:
+          type: integer
+          description: Timestamp when the wash started (0 if not washing)
+          nullable: true
+        elapsed_wash_time:
+          type: integer
+          description: Elapsed wash time in seconds
+          nullable: true
+        license_plate:
+          type: string
+          description: License plate of the vehicle in the lane
+          nullable: true
+        customer_number:
+          type: integer
+          description: Customer number associated with the current lane use
+          nullable: true
+
+    SelfServeConfig:
+      type: object
+      properties:
+        enabled:
+          type: boolean
+          description: Whether the self-serve module is enabled
+        minute_product:
+          type: integer
+          description: The product ID used for minute-based billing
+
     DepartmentSelfserveQuestion:
       type: object
       properties:
diff --git a/services/nginx/app/routes/moduleSelfServeRoute.php b/services/nginx/app/routes/moduleSelfServeRoute.php
index ad31569a..6174b79a 100644
--- a/services/nginx/app/routes/moduleSelfServeRoute.php
+++ b/services/nginx/app/routes/moduleSelfServeRoute.php
@@ -31,7 +31,8 @@ class moduleSelfServeRoute
             global $response;
             self::requirePermission('modules_selfserve_lane_status_view');
             $selfserve = new selfserve();
-            $lane = $selfserve->lane(1);
+            $lane_id = self::isParametersSet(['lane_id']) ? (int)self::getParameter('lane_id') : 1;
+            $lane = $selfserve->lane($lane_id);
             $response->success([
                 'id' => $lane->id,
                 'status' => $lane->getLaneStatus()->name,