diff --git a/automotive/vehicle/2.0/Android.mk b/automotive/vehicle/2.0/Android.mk
index f976c39..d093017 100644
--- a/automotive/vehicle/2.0/Android.mk
+++ b/automotive/vehicle/2.0/Android.mk
@@ -910,44 +910,6 @@
 LOCAL_GENERATED_SOURCES += $(GEN)
 
 #
-# Build types.hal (VmsMessageIntegerValuesIndex)
-#
-GEN := $(intermediates)/android/hardware/automotive/vehicle/V2_0/VmsMessageIntegerValuesIndex.java
-$(GEN): $(HIDL)
-$(GEN): PRIVATE_HIDL := $(HIDL)
-$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/types.hal
-$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
-$(GEN): PRIVATE_CUSTOM_TOOL = \
-        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
-        -Ljava \
-        -randroid.hardware:hardware/interfaces \
-        -randroid.hidl:system/libhidl/transport \
-        android.hardware.automotive.vehicle@2.0::types.VmsMessageIntegerValuesIndex
-
-$(GEN): $(LOCAL_PATH)/types.hal
-	$(transform-generated-source)
-LOCAL_GENERATED_SOURCES += $(GEN)
-
-#
-# Build types.hal (VmsMessageType)
-#
-GEN := $(intermediates)/android/hardware/automotive/vehicle/V2_0/VmsMessageType.java
-$(GEN): $(HIDL)
-$(GEN): PRIVATE_HIDL := $(HIDL)
-$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/types.hal
-$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
-$(GEN): PRIVATE_CUSTOM_TOOL = \
-        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
-        -Ljava \
-        -randroid.hardware:hardware/interfaces \
-        -randroid.hidl:system/libhidl/transport \
-        android.hardware.automotive.vehicle@2.0::types.VmsMessageType
-
-$(GEN): $(LOCAL_PATH)/types.hal
-	$(transform-generated-source)
-LOCAL_GENERATED_SOURCES += $(GEN)
-
-#
 # Build types.hal (Wheel)
 #
 GEN := $(intermediates)/android/hardware/automotive/vehicle/V2_0/Wheel.java
@@ -1920,44 +1882,6 @@
 LOCAL_GENERATED_SOURCES += $(GEN)
 
 #
-# Build types.hal (VmsMessageIntegerValuesIndex)
-#
-GEN := $(intermediates)/android/hardware/automotive/vehicle/V2_0/VmsMessageIntegerValuesIndex.java
-$(GEN): $(HIDL)
-$(GEN): PRIVATE_HIDL := $(HIDL)
-$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/types.hal
-$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
-$(GEN): PRIVATE_CUSTOM_TOOL = \
-        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
-        -Ljava \
-        -randroid.hardware:hardware/interfaces \
-        -randroid.hidl:system/libhidl/transport \
-        android.hardware.automotive.vehicle@2.0::types.VmsMessageIntegerValuesIndex
-
-$(GEN): $(LOCAL_PATH)/types.hal
-	$(transform-generated-source)
-LOCAL_GENERATED_SOURCES += $(GEN)
-
-#
-# Build types.hal (VmsMessageType)
-#
-GEN := $(intermediates)/android/hardware/automotive/vehicle/V2_0/VmsMessageType.java
-$(GEN): $(HIDL)
-$(GEN): PRIVATE_HIDL := $(HIDL)
-$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/types.hal
-$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
-$(GEN): PRIVATE_CUSTOM_TOOL = \
-        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
-        -Ljava \
-        -randroid.hardware:hardware/interfaces \
-        -randroid.hidl:system/libhidl/transport \
-        android.hardware.automotive.vehicle@2.0::types.VmsMessageType
-
-$(GEN): $(LOCAL_PATH)/types.hal
-	$(transform-generated-source)
-LOCAL_GENERATED_SOURCES += $(GEN)
-
-#
 # Build types.hal (Wheel)
 #
 GEN := $(intermediates)/android/hardware/automotive/vehicle/V2_0/Wheel.java
diff --git a/automotive/vehicle/2.0/default/tests/VehicleHalManager_test.cpp b/automotive/vehicle/2.0/default/tests/VehicleHalManager_test.cpp
index f637344..b5cdf5c 100644
--- a/automotive/vehicle/2.0/default/tests/VehicleHalManager_test.cpp
+++ b/automotive/vehicle/2.0/default/tests/VehicleHalManager_test.cpp
@@ -68,15 +68,16 @@
                     pValue = getValuePool()->obtainFloat(42.42);
                 }
                 break;
-            case VehicleProperty::VEHICLE_MAP_SERVICE:
-                pValue = getValuePool()->obtainComplex();
-                pValue->value.int32Values = hidl_vec<int32_t> { 10, 20 };
-                pValue->value.int64Values = hidl_vec<int64_t> { 30, 40 };
-                pValue->value.floatValues = hidl_vec<float_t> { 1.1, 2.2 };
-                pValue->value.bytes = hidl_vec<uint8_t> { 1, 2, 3 };
-                pValue->value.stringValue = kCarMake;
-                break;
             default:
+                if (requestedPropValue.prop == kCustomComplexProperty) {
+                    pValue = getValuePool()->obtainComplex();
+                    pValue->value.int32Values = hidl_vec<int32_t> { 10, 20 };
+                    pValue->value.int64Values = hidl_vec<int64_t> { 30, 40 };
+                    pValue->value.floatValues = hidl_vec<float_t> { 1.1, 2.2 };
+                    pValue->value.bytes = hidl_vec<uint8_t> { 1, 2, 3 };
+                    pValue->value.stringValue = kCarMake;
+                    break;
+                }
                 auto key = makeKey(toInt(property), areaId);
                 if (mValues.count(key) == 0) {
                     ALOGW("");
@@ -318,10 +319,10 @@
 }
 
 TEST_F(VehicleHalManagerTest, get_Complex) {
-    invokeGet(toInt(VehicleProperty::VEHICLE_MAP_SERVICE), 0);
+    invokeGet(kCustomComplexProperty, 0);
 
     ASSERT_EQ(StatusCode::OK, actualStatusCode);
-    ASSERT_EQ(toInt(VehicleProperty::VEHICLE_MAP_SERVICE), actualValue.prop);
+    ASSERT_EQ(kCustomComplexProperty, actualValue.prop);
 
     ASSERT_EQ(3u, actualValue.value.bytes.size());
     ASSERT_EQ(1, actualValue.value.bytes[0]);
diff --git a/automotive/vehicle/2.0/default/tests/VehicleHalTestUtils.h b/automotive/vehicle/2.0/default/tests/VehicleHalTestUtils.h
index ce1ed7d..28e1a5a 100644
--- a/automotive/vehicle/2.0/default/tests/VehicleHalTestUtils.h
+++ b/automotive/vehicle/2.0/default/tests/VehicleHalTestUtils.h
@@ -29,6 +29,11 @@
 namespace vehicle {
 namespace V2_0 {
 
+constexpr int32_t kCustomComplexProperty = 0xbeef
+        | VehiclePropertyGroup::VENDOR
+        | VehiclePropertyType::COMPLEX
+        | VehicleArea::GLOBAL;
+
 const VehiclePropConfig kVehicleProperties[] = {
     {
         .prop = toInt(VehicleProperty::INFO_MAKE),
@@ -109,7 +114,7 @@
 
     // Complex data type.
     {
-        .prop = toInt(VehicleProperty::VEHICLE_MAP_SERVICE),
+        .prop = kCustomComplexProperty,
         .access = VehiclePropertyAccess::READ_WRITE,
         .changeMode = VehiclePropertyChangeMode::ON_CHANGE
     }
diff --git a/automotive/vehicle/2.0/types.hal b/automotive/vehicle/2.0/types.hal
index 0d2dfdd..b33b6ee 100644
--- a/automotive/vehicle/2.0/types.hal
+++ b/automotive/vehicle/2.0/types.hal
@@ -1790,26 +1790,6 @@
         | VehiclePropertyGroup:SYSTEM
         | VehiclePropertyType:BOOLEAN
         | VehicleArea:GLOBAL),
-
-    /*
-     * Vehicle Maps Service (VMS) message
-     *
-     * This property uses COMPLEX data to communicate vms messages.
-     *
-     * Its contents are to be interpreted as follows:
-     * the indices defined in VmsMessageIntegerValuesIndex are to be used to
-     * read from int32Values;
-     * bytes is a serialized VMS message as defined in the vms protocol
-     * which is opaque to the framework;
-     *
-     * @change_mode VehiclePropertyChangeMode:ON_CHANGE
-     * @access VehiclePropertyAccess:READ_WRITE
-     */
-    VEHICLE_MAP_SERVICE = (
-        0x0C00
-        | VehiclePropertyGroup:SYSTEM
-        | VehiclePropertyType:COMPLEX
-        | VehicleArea:GLOBAL),
 };
 
 /*
@@ -2707,35 +2687,3 @@
     LEFT_REAR = 0x4,
     RIGHT_REAR = 0x8,
 };
-
-/*
- * This enum lists the types of supported VMS messages.
- */
-enum VmsMessageType : int32_t {
-  /* A client subscribes to a layer. */
-  SUBSCRIBE = 1,
-
-  /* A client unsubscribes from a layer. */
-  UNSUBSCRIBE = 2,
-
-  /* A client publishes a data packet. */
-  DATA = 3,
-};
-
-/*
- * This enum provides the canonical mapping for VMS properties that have an
- * integer value.
- */
-enum VmsMessageIntegerValuesIndex : int32_t {
-  /* The message type as enumerated by VmsMessageType enum. */
-  VMS_MESSAGE_TYPE = 0,
-
-  /* The layer ID as defined in the vms protocol. */
-  VMS_LAYER_ID = 1,
-
-  /* The version of the VMS layer. */
-  VMS_LAYER_VERSION = 2,
-
-  /* The number of bytes in the payload */
-  VMS_PAYLOAD_SIZE_BYTES = 3,
-};
diff --git a/automotive/vehicle/2.1/Android.mk b/automotive/vehicle/2.1/Android.mk
index f5a121d..f030af08 100644
--- a/automotive/vehicle/2.1/Android.mk
+++ b/automotive/vehicle/2.1/Android.mk
@@ -208,6 +208,44 @@
 LOCAL_GENERATED_SOURCES += $(GEN)
 
 #
+# Build types.hal (VmsMessageIntegerValuesIndex)
+#
+GEN := $(intermediates)/android/hardware/automotive/vehicle/V2_1/VmsMessageIntegerValuesIndex.java
+$(GEN): $(HIDL)
+$(GEN): PRIVATE_HIDL := $(HIDL)
+$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/types.hal
+$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
+$(GEN): PRIVATE_CUSTOM_TOOL = \
+        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
+        -Ljava \
+        -randroid.hardware:hardware/interfaces \
+        -randroid.hidl:system/libhidl/transport \
+        android.hardware.automotive.vehicle@2.1::types.VmsMessageIntegerValuesIndex
+
+$(GEN): $(LOCAL_PATH)/types.hal
+	$(transform-generated-source)
+LOCAL_GENERATED_SOURCES += $(GEN)
+
+#
+# Build types.hal (VmsMessageType)
+#
+GEN := $(intermediates)/android/hardware/automotive/vehicle/V2_1/VmsMessageType.java
+$(GEN): $(HIDL)
+$(GEN): PRIVATE_HIDL := $(HIDL)
+$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/types.hal
+$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
+$(GEN): PRIVATE_CUSTOM_TOOL = \
+        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
+        -Ljava \
+        -randroid.hardware:hardware/interfaces \
+        -randroid.hidl:system/libhidl/transport \
+        android.hardware.automotive.vehicle@2.1::types.VmsMessageType
+
+$(GEN): $(LOCAL_PATH)/types.hal
+	$(transform-generated-source)
+LOCAL_GENERATED_SOURCES += $(GEN)
+
+#
 # Build IVehicle.hal
 #
 GEN := $(intermediates)/android/hardware/automotive/vehicle/V2_1/IVehicle.java
@@ -434,6 +472,44 @@
 LOCAL_GENERATED_SOURCES += $(GEN)
 
 #
+# Build types.hal (VmsMessageIntegerValuesIndex)
+#
+GEN := $(intermediates)/android/hardware/automotive/vehicle/V2_1/VmsMessageIntegerValuesIndex.java
+$(GEN): $(HIDL)
+$(GEN): PRIVATE_HIDL := $(HIDL)
+$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/types.hal
+$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
+$(GEN): PRIVATE_CUSTOM_TOOL = \
+        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
+        -Ljava \
+        -randroid.hardware:hardware/interfaces \
+        -randroid.hidl:system/libhidl/transport \
+        android.hardware.automotive.vehicle@2.1::types.VmsMessageIntegerValuesIndex
+
+$(GEN): $(LOCAL_PATH)/types.hal
+	$(transform-generated-source)
+LOCAL_GENERATED_SOURCES += $(GEN)
+
+#
+# Build types.hal (VmsMessageType)
+#
+GEN := $(intermediates)/android/hardware/automotive/vehicle/V2_1/VmsMessageType.java
+$(GEN): $(HIDL)
+$(GEN): PRIVATE_HIDL := $(HIDL)
+$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/types.hal
+$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
+$(GEN): PRIVATE_CUSTOM_TOOL = \
+        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
+        -Ljava \
+        -randroid.hardware:hardware/interfaces \
+        -randroid.hidl:system/libhidl/transport \
+        android.hardware.automotive.vehicle@2.1::types.VmsMessageType
+
+$(GEN): $(LOCAL_PATH)/types.hal
+	$(transform-generated-source)
+LOCAL_GENERATED_SOURCES += $(GEN)
+
+#
 # Build IVehicle.hal
 #
 GEN := $(intermediates)/android/hardware/automotive/vehicle/V2_1/IVehicle.java
diff --git a/automotive/vehicle/2.1/default/impl/vhal_v2_1/DefaultConfig.h b/automotive/vehicle/2.1/default/impl/vhal_v2_1/DefaultConfig.h
index 769ae6d..6bdec59 100644
--- a/automotive/vehicle/2.1/default/impl/vhal_v2_1/DefaultConfig.h
+++ b/automotive/vehicle/2.1/default/impl/vhal_v2_1/DefaultConfig.h
@@ -59,6 +59,12 @@
         .prop = V2_0::toInt(V2_1::VehicleProperty::OBD2_FREEZE_FRAME_CLEAR),
         .access = V2_0::VehiclePropertyAccess::WRITE,
         .changeMode = V2_0::VehiclePropertyChangeMode::ON_CHANGE
+    },
+
+    {
+        .prop = V2_0::toInt(VehicleProperty::VEHICLE_MAP_SERVICE),
+        .access = V2_0::VehiclePropertyAccess::READ_WRITE,
+        .changeMode = V2_0::VehiclePropertyChangeMode::ON_CHANGE
     }
 };
 
diff --git a/automotive/vehicle/2.1/types.hal b/automotive/vehicle/2.1/types.hal
index f0dd95f..9b219b2 100644
--- a/automotive/vehicle/2.1/types.hal
+++ b/automotive/vehicle/2.1/types.hal
@@ -174,6 +174,26 @@
       | VehiclePropertyGroup:SYSTEM
       | VehiclePropertyType:COMPLEX
       | VehicleArea:GLOBAL),
+
+    /*
+     * Vehicle Maps Service (VMS) message
+     *
+     * This property uses COMPLEX data to communicate vms messages.
+     *
+     * Its contents are to be interpreted as follows:
+     * the indices defined in VmsMessageIntegerValuesIndex are to be used to
+     * read from int32Values;
+     * bytes is a serialized VMS message as defined in the vms protocol
+     * which is opaque to the framework;
+     *
+     * @change_mode VehiclePropertyChangeMode:ON_CHANGE
+     * @access VehiclePropertyAccess:READ_WRITE
+     */
+    VEHICLE_MAP_SERVICE = (
+        0x0C00
+        | VehiclePropertyGroup:SYSTEM
+        | VehiclePropertyType:COMPLEX
+        | VehicleArea:GLOBAL),
 };
 
 /* The status of a fuel system as described by the OBD2 specification. */
@@ -551,3 +571,35 @@
 
   LAST_SYSTEM_INDEX = ENGINE_FUEL_RATE,
 };
+
+/*
+ * This enum lists the types of supported VMS messages.
+ */
+enum VmsMessageType : int32_t {
+  /* A client subscribes to a layer. */
+  SUBSCRIBE = 1,
+
+  /* A client unsubscribes from a layer. */
+  UNSUBSCRIBE = 2,
+
+  /* A client publishes a data packet. */
+  DATA = 3,
+};
+
+/*
+ * This enum provides the canonical mapping for VMS properties that have an
+ * integer value.
+ */
+enum VmsMessageIntegerValuesIndex : int32_t {
+  /* The message type as enumerated by VmsMessageType enum. */
+  VMS_MESSAGE_TYPE = 0,
+
+  /* The layer ID as defined in the vms protocol. */
+  VMS_LAYER_ID = 1,
+
+  /* The version of the VMS layer. */
+  VMS_LAYER_VERSION = 2,
+
+  /* The number of bytes in the payload */
+  VMS_PAYLOAD_SIZE_BYTES = 3,
+};