diff --git a/automotive/vehicle/aidl/aidl_api/android.hardware.automotive.vehicle/current/android/hardware/automotive/vehicle/GetValueRequest.aidl b/automotive/vehicle/aidl/aidl_api/android.hardware.automotive.vehicle/current/android/hardware/automotive/vehicle/GetValueRequest.aidl
new file mode 100644
index 0000000..177966b
--- /dev/null
+++ b/automotive/vehicle/aidl/aidl_api/android.hardware.automotive.vehicle/current/android/hardware/automotive/vehicle/GetValueRequest.aidl
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.automotive.vehicle;
+@VintfStability
+parcelable GetValueRequest {
+  long requestId;
+  android.hardware.automotive.vehicle.VehiclePropValue prop;
+}
diff --git a/automotive/vehicle/aidl/aidl_api/android.hardware.automotive.vehicle/current/android/hardware/automotive/vehicle/GetValueRequests.aidl b/automotive/vehicle/aidl/aidl_api/android.hardware.automotive.vehicle/current/android/hardware/automotive/vehicle/GetValueRequests.aidl
index c263a9d..5ecf4dd 100644
--- a/automotive/vehicle/aidl/aidl_api/android.hardware.automotive.vehicle/current/android/hardware/automotive/vehicle/GetValueRequests.aidl
+++ b/automotive/vehicle/aidl/aidl_api/android.hardware.automotive.vehicle/current/android/hardware/automotive/vehicle/GetValueRequests.aidl
@@ -34,7 +34,6 @@
 package android.hardware.automotive.vehicle;
 @VintfStability
 parcelable GetValueRequests {
-  android.hardware.automotive.vehicle.VehiclePropValue[] payloads;
-  long[] requestId;
+  android.hardware.automotive.vehicle.GetValueRequest[] payloads;
   @nullable ParcelFileDescriptor sharedMemoryFd;
 }
diff --git a/automotive/vehicle/aidl/aidl_api/android.hardware.automotive.vehicle/current/android/hardware/automotive/vehicle/SetValueRequest.aidl b/automotive/vehicle/aidl/aidl_api/android.hardware.automotive.vehicle/current/android/hardware/automotive/vehicle/SetValueRequest.aidl
index 82e7551..d6cddb6 100644
--- a/automotive/vehicle/aidl/aidl_api/android.hardware.automotive.vehicle/current/android/hardware/automotive/vehicle/SetValueRequest.aidl
+++ b/automotive/vehicle/aidl/aidl_api/android.hardware.automotive.vehicle/current/android/hardware/automotive/vehicle/SetValueRequest.aidl
@@ -34,6 +34,6 @@
 package android.hardware.automotive.vehicle;
 @VintfStability
 parcelable SetValueRequest {
-  android.hardware.automotive.vehicle.VehiclePropValue value;
   long requestId;
+  android.hardware.automotive.vehicle.VehiclePropValue value;
 }
diff --git a/automotive/vehicle/aidl/android/hardware/automotive/vehicle/GetValueRequest.aidl b/automotive/vehicle/aidl/android/hardware/automotive/vehicle/GetValueRequest.aidl
new file mode 100644
index 0000000..43a89d0
--- /dev/null
+++ b/automotive/vehicle/aidl/android/hardware/automotive/vehicle/GetValueRequest.aidl
@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.automotive.vehicle;
+
+import android.hardware.automotive.vehicle.VehiclePropValue;
+
+@VintfStability
+parcelable GetValueRequest {
+    // A unique request ID. For every client, the request ID must start with 1
+    // and monotonically increase for every SetValueRequest. If it hits
+    // LONG_MAX (very unlikely), it must loop back to 0.
+    long requestId;
+    // The property to get, for most properties, only the property ID or area
+    // ID would be used to identify the property, but for some properties, other
+    // fields might be used.
+    VehiclePropValue prop;
+}
diff --git a/automotive/vehicle/aidl/android/hardware/automotive/vehicle/GetValueRequests.aidl b/automotive/vehicle/aidl/android/hardware/automotive/vehicle/GetValueRequests.aidl
index 149799e..6601233 100644
--- a/automotive/vehicle/aidl/android/hardware/automotive/vehicle/GetValueRequests.aidl
+++ b/automotive/vehicle/aidl/android/hardware/automotive/vehicle/GetValueRequests.aidl
@@ -16,18 +16,14 @@
 
 package android.hardware.automotive.vehicle;
 
-import android.hardware.automotive.vehicle.VehiclePropValue;
+import android.hardware.automotive.vehicle.GetValueRequest;
 import android.os.ParcelFileDescriptor;
 
 @VintfStability
 parcelable GetValueRequests {
-    // The list of properties to get if they fit the binder memory limitation.
-    VehiclePropValue[] payloads;
-    // A list of request IDs, one for each VehiclePropValue. For every client,
-    // the request ID must start with 1 and monotonically increase for every
-    // VehiclePropValue in GetValueRequests. If it hits LONG_MAX (very
-    // unlikely), it must loop back to 0.
-    long[] requestId;
+    // A list of GetValueRequest to get if they fit the binder memory
+    // limitation.
+    GetValueRequest[] payloads;
     // Shared memory file to store requests if they exceed binder memory
     // limitation. Created by client, readable only at VHAL during the call.
     // Caller could close it after the call.
diff --git a/automotive/vehicle/aidl/android/hardware/automotive/vehicle/SetValueRequest.aidl b/automotive/vehicle/aidl/android/hardware/automotive/vehicle/SetValueRequest.aidl
index 1771c63..f2b0e27 100644
--- a/automotive/vehicle/aidl/android/hardware/automotive/vehicle/SetValueRequest.aidl
+++ b/automotive/vehicle/aidl/android/hardware/automotive/vehicle/SetValueRequest.aidl
@@ -20,10 +20,10 @@
 
 @VintfStability
 parcelable SetValueRequest {
-    // The value to set.
-    VehiclePropValue value;
     // A unique request ID. For every client, the request ID must start with 1
     // and monotonically increase for every SetValueRequest. If it hits
     // LONG_MAX (very unlikely), it must loop back to 0.
     long requestId;
+    // The value to set.
+    VehiclePropValue value;
 }