diff --git a/automotive/vehicle/aidl/impl/current/utils/test_vendor_properties/android/hardware/automotive/vehicle/TestVendorProperty.aidl b/automotive/vehicle/aidl/impl/current/utils/test_vendor_properties/android/hardware/automotive/vehicle/TestVendorProperty.aidl
index 3c877fa..217387f 100644
--- a/automotive/vehicle/aidl/impl/current/utils/test_vendor_properties/android/hardware/automotive/vehicle/TestVendorProperty.aidl
+++ b/automotive/vehicle/aidl/impl/current/utils/test_vendor_properties/android/hardware/automotive/vehicle/TestVendorProperty.aidl
@@ -19,6 +19,7 @@
 /**
  * Test vendor properties used in reference VHAL implementation.
  */
+@JavaDerive(toString=true)
 @Backing(type="int")
 enum TestVendorProperty {
 
diff --git a/automotive/vehicle/aidl/impl/current/vhal/include/ConnectedClient.h b/automotive/vehicle/aidl/impl/current/vhal/include/ConnectedClient.h
index addc901..335f5c0 100644
--- a/automotive/vehicle/aidl/impl/current/vhal/include/ConnectedClient.h
+++ b/automotive/vehicle/aidl/impl/current/vhal/include/ConnectedClient.h
@@ -116,6 +116,10 @@
             CallbackType callback,
             std::vector<aidl::android::hardware::automotive::vehicle::VehiclePropError>&&
                     vehiclePropErrors);
+
+    // Invokes onSupportedValueChange callback.
+    static void sendSupportedValueChangeEvents(CallbackType callback,
+                                               std::vector<PropIdAreaId> propIdAreaIds);
 };
 
 }  // namespace vehicle
diff --git a/automotive/vehicle/aidl/impl/current/vhal/include/DefaultVehicleHal.h b/automotive/vehicle/aidl/impl/current/vhal/include/DefaultVehicleHal.h
index 02dbe9e..42902fe 100644
--- a/automotive/vehicle/aidl/impl/current/vhal/include/DefaultVehicleHal.h
+++ b/automotive/vehicle/aidl/impl/current/vhal/include/DefaultVehicleHal.h
@@ -255,6 +255,10 @@
             const std::weak_ptr<SubscriptionManager>& subscriptionManager,
             const std::vector<SetValueErrorEvent>& errorEvents);
 
+    static void onSupportedValueChange(
+            const std::weak_ptr<SubscriptionManager>& subscriptionManager,
+            const std::vector<PropIdAreaId>& updatedPropIdAreaIds);
+
     static void checkHealth(IVehicleHardware* hardware,
                             std::weak_ptr<SubscriptionManager> subscriptionManager);
 
diff --git a/automotive/vehicle/aidl/impl/current/vhal/include/SubscriptionManager.h b/automotive/vehicle/aidl/impl/current/vhal/include/SubscriptionManager.h
index 59c21aa..fa438ec 100644
--- a/automotive/vehicle/aidl/impl/current/vhal/include/SubscriptionManager.h
+++ b/automotive/vehicle/aidl/impl/current/vhal/include/SubscriptionManager.h
@@ -118,6 +118,11 @@
                        std::vector<aidl::android::hardware::automotive::vehicle::VehiclePropError>>
     getSubscribedClientsForErrorEvents(const std::vector<SetValueErrorEvent>& errorEvents);
 
+    // For a list of [propId, areaId]s that has updated supported value, returns a map that maps
+    // subscribing clients to updated [propId, areaId]s.
+    std::unordered_map<CallbackType, std::vector<PropIdAreaId>>
+    getSubscribedClientsForSupportedValueChange(const std::vector<PropIdAreaId>& propIdAreaIds);
+
     // Subscribes to supported values change.
     VhalResult<void> subscribeSupportedValueChange(const CallbackType& callback,
                                                    const std::vector<PropIdAreaId>& propIdAreaIds);
diff --git a/automotive/vehicle/aidl/impl/current/vhal/src/ConnectedClient.cpp b/automotive/vehicle/aidl/impl/current/vhal/src/ConnectedClient.cpp
index 35b93d2..ac2691a 100644
--- a/automotive/vehicle/aidl/impl/current/vhal/src/ConnectedClient.cpp
+++ b/automotive/vehicle/aidl/impl/current/vhal/src/ConnectedClient.cpp
@@ -306,6 +306,30 @@
     }
 }
 
+void SubscriptionClient::sendSupportedValueChangeEvents(std::shared_ptr<IVehicleCallback> callback,
+                                                        std::vector<PropIdAreaId> propIdAreaIds) {
+    if (propIdAreaIds.empty()) {
+        return;
+    }
+
+    std::vector<aidl::android::hardware::automotive::vehicle::PropIdAreaId> vhalPropIdAreaIds;
+    for (const auto& propIdAreaId : propIdAreaIds) {
+        vhalPropIdAreaIds.push_back(aidl::android::hardware::automotive::vehicle::PropIdAreaId{
+                .propId = propIdAreaId.propId,
+                .areaId = propIdAreaId.areaId,
+        });
+    }
+
+    if (ScopedAStatus callbackStatus = callback->onSupportedValueChange(vhalPropIdAreaIds);
+        !callbackStatus.isOk()) {
+        ALOGE("subscribe: failed to call onSupportedValueChange callback, client ID: %p, error: "
+              "%s, "
+              "exception: %d, service specific error: %d",
+              callback->asBinder().get(), callbackStatus.getMessage(),
+              callbackStatus.getExceptionCode(), callbackStatus.getServiceSpecificError());
+    }
+}
+
 }  // namespace vehicle
 }  // namespace automotive
 }  // namespace hardware
diff --git a/automotive/vehicle/aidl/impl/current/vhal/src/DefaultVehicleHal.cpp b/automotive/vehicle/aidl/impl/current/vhal/src/DefaultVehicleHal.cpp
index 25af50e..050f88d 100644
--- a/automotive/vehicle/aidl/impl/current/vhal/src/DefaultVehicleHal.cpp
+++ b/automotive/vehicle/aidl/impl/current/vhal/src/DefaultVehicleHal.cpp
@@ -160,6 +160,11 @@
                     [subscriptionManagerCopy](std::vector<SetValueErrorEvent> errorEvents) {
                         onPropertySetErrorEvent(subscriptionManagerCopy, errorEvents);
                     }));
+    mVehicleHardware->registerSupportedValueChangeCallback(
+            std::make_unique<IVehicleHardware::SupportedValueChangeCallback>(
+                    [subscriptionManagerCopy](std::vector<PropIdAreaId> propIdAreaIds) {
+                        onSupportedValueChange(subscriptionManagerCopy, propIdAreaIds);
+                    }));
 
     // Register heartbeat event.
     mRecurrentAction = std::make_shared<std::function<void()>>(
@@ -207,7 +212,8 @@
         std::vector<VehiclePropValue>&& updatedValues) {
     auto batchedEventQueueStrong = batchedEventQueue.lock();
     if (batchedEventQueueStrong == nullptr) {
-        ALOGW("the batched property events queue is destroyed, DefaultVehicleHal is ending");
+        ALOGW("%s: the batched property events queue is destroyed, DefaultVehicleHal is ending",
+              __func__);
         return;
     }
     batchedEventQueueStrong->push(std::move(updatedValues));
@@ -223,7 +229,7 @@
     ATRACE_CALL();
     auto manager = subscriptionManager.lock();
     if (manager == nullptr) {
-        ALOGW("the SubscriptionManager is destroyed, DefaultVehicleHal is ending");
+        ALOGW("%s: the SubscriptionManager is destroyed, DefaultVehicleHal is ending", __func__);
         return;
     }
     auto updatedValuesByClients = manager->getSubscribedClients(std::move(updatedValues));
@@ -237,7 +243,7 @@
         const std::vector<SetValueErrorEvent>& errorEvents) {
     auto manager = subscriptionManager.lock();
     if (manager == nullptr) {
-        ALOGW("the SubscriptionManager is destroyed, DefaultVehicleHal is ending");
+        ALOGW("%s: the SubscriptionManager is destroyed, DefaultVehicleHal is ending", __func__);
         return;
     }
     auto vehiclePropErrorsByClient = manager->getSubscribedClientsForErrorEvents(errorEvents);
@@ -246,6 +252,22 @@
     }
 }
 
+void DefaultVehicleHal::onSupportedValueChange(
+        const std::weak_ptr<SubscriptionManager>& subscriptionManager,
+        const std::vector<PropIdAreaId>& propIdAreaIds) {
+    auto manager = subscriptionManager.lock();
+    if (manager == nullptr) {
+        ALOGW("%s: the SubscriptionManager is destroyed, DefaultVehicleHal is ending", __func__);
+        return;
+    }
+    auto updatedPropIdAreaIdsByClient =
+            manager->getSubscribedClientsForSupportedValueChange(propIdAreaIds);
+    for (auto& [callback, updatedPropIdAreaIds] : updatedPropIdAreaIdsByClient) {
+        SubscriptionClient::sendSupportedValueChangeEvents(callback,
+                                                           std::move(updatedPropIdAreaIds));
+    }
+}
+
 template <class T>
 std::shared_ptr<T> DefaultVehicleHal::getOrCreateClient(
         std::unordered_map<const AIBinder*, std::shared_ptr<T>>* clients,
@@ -931,7 +953,9 @@
     }
 
     {
-        // Lock to make sure onBinderDied would not be called concurrently.
+        // Lock to make sure onBinderDied would not be called concurrently
+        // (before subscribe). Without this, we may create a new subscription for an already dead
+        // client which will never be unsubscribed.
         std::scoped_lock lockGuard(mLock);
         if (!monitorBinderLifeCycleLocked(callback->asBinder().get())) {
             return ScopedAStatus::fromExceptionCodeWithMessage(EX_TRANSACTION_FAILED,
@@ -1156,14 +1180,24 @@
     if (propIdAreaIdsToSubscribe.empty()) {
         return ScopedAStatus::ok();
     }
-    auto result =
-            mSubscriptionManager->subscribeSupportedValueChange(callback, propIdAreaIdsToSubscribe);
-    if (!result.ok()) {
-        ALOGW("registerSupportedValueChangeCallback: failed to subscribe supported value change"
-              " for %s, error: %s",
-              fmt::format("{}", propIdAreaIdsToSubscribe).c_str(),
-              result.error().message().c_str());
-        return toScopedAStatus(result);
+    {
+        // Lock to make sure onBinderDied would not be called concurrently
+        // (before subscribeSupportedValueChange). Without this, we may create a new subscription
+        // for an already dead client which will never be unsubscribed.
+        std::scoped_lock lockGuard(mLock);
+        if (!monitorBinderLifeCycleLocked(callback->asBinder().get())) {
+            return ScopedAStatus::fromExceptionCodeWithMessage(EX_TRANSACTION_FAILED,
+                                                               "client died");
+        }
+        auto result = mSubscriptionManager->subscribeSupportedValueChange(callback,
+                                                                          propIdAreaIdsToSubscribe);
+        if (!result.ok()) {
+            ALOGW("registerSupportedValueChangeCallback: failed to subscribe supported value change"
+                  " for %s, error: %s",
+                  fmt::format("{}", propIdAreaIdsToSubscribe).c_str(),
+                  result.error().message().c_str());
+            return toScopedAStatus(result);
+        }
     }
     return ScopedAStatus::ok();
 }
diff --git a/automotive/vehicle/aidl/impl/current/vhal/src/SubscriptionManager.cpp b/automotive/vehicle/aidl/impl/current/vhal/src/SubscriptionManager.cpp
index f790033..946c217 100644
--- a/automotive/vehicle/aidl/impl/current/vhal/src/SubscriptionManager.cpp
+++ b/automotive/vehicle/aidl/impl/current/vhal/src/SubscriptionManager.cpp
@@ -414,6 +414,7 @@
     std::scoped_lock<std::mutex> lockGuard(mLock);
 
     ClientIdType clientId = callback->asBinder().get();
+    ALOGE("ClientId: %p", clientId);
 
     // It is possible that some of the [propId, areaId]s are already subscribed, IVehicleHardware
     // will ignore them.
@@ -581,6 +582,25 @@
     return clients;
 }
 
+std::unordered_map<std::shared_ptr<IVehicleCallback>, std::vector<PropIdAreaId>>
+SubscriptionManager::getSubscribedClientsForSupportedValueChange(
+        const std::vector<PropIdAreaId>& propIdAreaIds) {
+    std::scoped_lock<std::mutex> lockGuard(mLock);
+    std::unordered_map<std::shared_ptr<IVehicleCallback>, std::vector<PropIdAreaId>>
+            propIdAreaIdsByClient;
+
+    for (const auto& propIdAreaId : propIdAreaIds) {
+        const auto clientIter = mSupportedValueChangeClientsByPropIdAreaId.find(propIdAreaId);
+        if (clientIter == mSupportedValueChangeClientsByPropIdAreaId.end()) {
+            continue;
+        }
+        for (const auto& [_, client] : clientIter->second) {
+            propIdAreaIdsByClient[client].push_back(propIdAreaId);
+        }
+    }
+    return propIdAreaIdsByClient;
+}
+
 bool SubscriptionManager::isEmpty() {
     std::scoped_lock<std::mutex> lockGuard(mLock);
     return mSubscribedPropsByClient.empty() && mClientsByPropIdAreaId.empty() &&
diff --git a/automotive/vehicle/aidl/impl/current/vhal/test/DefaultVehicleHalTest.cpp b/automotive/vehicle/aidl/impl/current/vhal/test/DefaultVehicleHalTest.cpp
index 0526f7d..90b34c4 100644
--- a/automotive/vehicle/aidl/impl/current/vhal/test/DefaultVehicleHalTest.cpp
+++ b/automotive/vehicle/aidl/impl/current/vhal/test/DefaultVehicleHalTest.cpp
@@ -272,6 +272,10 @@
     void SetUp() override { init(std::make_unique<MockVehicleHardware>()); }
 
     void init(std::unique_ptr<MockVehicleHardware> hardware) {
+        // Default init uses the following static configs to create the mock IVehicleHardware,
+        // individual test case may use setHardware to overwrite the underlying IVehicleHardware
+        // to use a different set of configs.
+
         std::vector<VehiclePropConfig> testConfigs;
         for (size_t i = 0; i < 10000; i++) {
             testConfigs.push_back(VehiclePropConfig{
@@ -420,18 +424,8 @@
                 .changeMode = VehiclePropertyChangeMode::ON_CHANGE,
         });
         hardware->setPropertyConfigs(testConfigs);
-        mHardwarePtr = hardware.get();
-        mVhal = ndk::SharedRefBase::make<DefaultVehicleHal>(std::move(hardware));
-        mVhalClient = IVehicle::fromBinder(mVhal->asBinder());
-        mCallback = ndk::SharedRefBase::make<MockVehicleCallback>();
-        // Keep the local binder alive.
-        mBinder = mCallback->asBinder();
-        mCallbackClient = IVehicleCallback::fromBinder(mBinder);
 
-        // Set the linkToDeath to a fake implementation that always returns OK.
-        auto handler = std::make_unique<TestBinderLifecycleHandler>();
-        mBinderLifecycleHandler = handler.get();
-        mVhal->setBinderLifecycleHandler(std::move(handler));
+        setHardware(std::move(hardware));
     }
 
     void TearDown() override {
@@ -548,6 +542,33 @@
         return {};
     }
 
+  protected:
+    // Sets the underlying IVehicleHardware and recreates the DefaultVehicleHal objects under test.
+    // If used, caller should call this at the beginning of the test case.
+    void setHardware(std::unique_ptr<MockVehicleHardware> hardware) {
+        setHardware(std::move(hardware), 0);
+    }
+
+    void setHardware(std::unique_ptr<MockVehicleHardware> hardware, int32_t testInterfaceVersion) {
+        mHardwarePtr = hardware.get();
+        if (testInterfaceVersion == 0) {
+            mVhal = ndk::SharedRefBase::make<DefaultVehicleHal>(std::move(hardware));
+        } else {
+            mVhal = ndk::SharedRefBase::make<DefaultVehicleHal>(std::move(hardware),
+                                                                testInterfaceVersion);
+        }
+        // Set the linkToDeath to a fake implementation that always returns OK.
+        auto handler = std::make_unique<TestBinderLifecycleHandler>();
+        mBinderLifecycleHandler = handler.get();
+        mVhal->setBinderLifecycleHandler(std::move(handler));
+
+        mVhalClient = IVehicle::fromBinder(mVhal->asBinder());
+        mCallback = ndk::SharedRefBase::make<MockVehicleCallback>();
+        // Keep the local binder alive.
+        mBinder = mCallback->asBinder();
+        mCallbackClient = IVehicleCallback::fromBinder(mBinder);
+    }
+
   private:
     class TestBinderLifecycleHandler final : public DefaultVehicleHal::BinderLifecycleInterface {
       public:
@@ -588,11 +609,10 @@
 
     auto hardware = std::make_unique<MockVehicleHardware>();
     hardware->setPropertyConfigs(testConfigs);
-    auto vhal = ndk::SharedRefBase::make<DefaultVehicleHal>(std::move(hardware));
-    std::shared_ptr<IVehicle> client = IVehicle::fromBinder(vhal->asBinder());
+    setHardware(std::move(hardware));
 
     VehiclePropConfigs output;
-    auto status = client->getAllPropConfigs(&output);
+    auto status = getClient()->getAllPropConfigs(&output);
 
     ASSERT_TRUE(status.isOk()) << "getAllPropConfigs failed: " << status.getMessage();
     ASSERT_THAT(output.payloads, WhenSortedBy(propConfigCmp, Eq(testConfigs)));
@@ -609,11 +629,10 @@
 
     auto hardware = std::make_unique<MockVehicleHardware>();
     hardware->setPropertyConfigs(testConfigs);
-    auto vhal = ndk::SharedRefBase::make<DefaultVehicleHal>(std::move(hardware));
-    std::shared_ptr<IVehicle> client = IVehicle::fromBinder(vhal->asBinder());
+    setHardware(std::move(hardware));
 
     VehiclePropConfigs output;
-    auto status = client->getAllPropConfigs(&output);
+    auto status = getClient()->getAllPropConfigs(&output);
 
     ASSERT_TRUE(status.isOk()) << "getAllPropConfigs failed: " << status.getMessage();
     ASSERT_TRUE(output.payloads.empty());
@@ -637,12 +656,10 @@
 
     auto hardware = std::make_unique<MockVehicleHardware>();
     hardware->setPropertyConfigs(testConfigs);
-    auto vhal = ndk::SharedRefBase::make<DefaultVehicleHal>(std::move(hardware),
-                                                            /* testInterfaceVersion= */ 2);
-    std::shared_ptr<IVehicle> client = IVehicle::fromBinder(vhal->asBinder());
+    setHardware(std::move(hardware), /* testInterfaceVersion= */ 2);
 
     VehiclePropConfigs output;
-    auto status = client->getAllPropConfigs(&output);
+    auto status = getClient()->getAllPropConfigs(&output);
 
     ASSERT_TRUE(status.isOk()) << "getAllPropConfigs failed: " << status.getMessage();
     ASSERT_THAT(output.payloads, ElementsAre(VehiclePropConfig{
@@ -666,15 +683,14 @@
     hardware->setPropertyConfigs(testConfigs);
     // Store the pointer for testing. We are sure it is valid.
     MockVehicleHardware* hardwarePtr = hardware.get();
-    auto vhal = ndk::SharedRefBase::make<DefaultVehicleHal>(std::move(hardware));
-    std::shared_ptr<IVehicle> client = IVehicle::fromBinder(vhal->asBinder());
+    setHardware(std::move(hardware));
 
     VehiclePropConfigs output;
-    auto status = client->getPropConfigs(std::vector<int32_t>({propId1, propId2}), &output);
+    auto status = getClient()->getPropConfigs(std::vector<int32_t>({propId1, propId2}), &output);
 
     ASSERT_TRUE(status.isOk()) << "getPropConfigs failed: " << status.getMessage();
     ASSERT_EQ(output.payloads, testConfigs);
-    ASSERT_FALSE(hardwarePtr->getAllPropertyConfigsCalled());
+    ASSERT_FALSE(getHardware()->getAllPropertyConfigsCalled());
 }
 
 TEST_F(DefaultVehicleHalTest, testGetPropConfigsInvalidArg) {
@@ -689,11 +705,10 @@
 
     auto hardware = std::make_unique<MockVehicleHardware>();
     hardware->setPropertyConfigs(testConfigs);
-    auto vhal = ndk::SharedRefBase::make<DefaultVehicleHal>(std::move(hardware));
-    std::shared_ptr<IVehicle> client = IVehicle::fromBinder(vhal->asBinder());
+    setHardware(std::move(hardware));
 
     VehiclePropConfigs output;
-    auto status = client->getPropConfigs(
+    auto status = getClient()->getPropConfigs(
             std::vector<int32_t>({testInt32VecProp(1), testInt32VecProp(2), testInt32VecProp(3)}),
             &output);
 
@@ -2187,8 +2202,7 @@
     auto response = std::vector<SupportedValuesListResult>({resultFromHardware});
     hardware->setSupportedValuesListResponse(response);
 
-    auto vhal = ndk::SharedRefBase::make<DefaultVehicleHal>(std::move(hardware));
-    std::shared_ptr<IVehicle> client = IVehicle::fromBinder(vhal->asBinder());
+    setHardware(std::move(hardware));
 
     SupportedValuesListResults results;
 
@@ -2196,14 +2210,14 @@
     auto propIdAreaId2 = VhalPropIdAreaId{.propId = testInt32VecWindowProp(2), .areaId = 2};
     auto propIdAreaId3 = VhalPropIdAreaId{.propId = testInt32VecWindowProp(3), .areaId = 0};
     auto propIdAreaId4 = VhalPropIdAreaId{.propId = testInt32VecWindowProp(4), .areaId = 4};
-    auto status = vhal->getSupportedValuesLists(
+    auto status = getClient()->getSupportedValuesLists(
             std::vector<VhalPropIdAreaId>{propIdAreaId1, propIdAreaId2, propIdAreaId3,
                                           propIdAreaId4},
             &results);
 
     ASSERT_TRUE(status.isOk()) << "Get non-okay status from getSupportedValuesLists"
                                << status.getMessage();
-    ASSERT_THAT(hardwarePtr->getSupportedValuesListRequest(),
+    ASSERT_THAT(getHardware()->getSupportedValuesListRequest(),
                 ElementsAre(PropIdAreaId{.propId = testInt32VecWindowProp(4), .areaId = 4}))
             << "Only valid request 4 should get to hardware";
 
@@ -2250,8 +2264,7 @@
     auto hardware = std::make_unique<MockVehicleHardware>();
     hardware->setPropertyConfigs(testConfigs);
 
-    auto vhal = ndk::SharedRefBase::make<DefaultVehicleHal>(std::move(hardware));
-    std::shared_ptr<IVehicle> client = IVehicle::fromBinder(vhal->asBinder());
+    setHardware(std::move(hardware));
 
     SupportedValuesListResults results;
 
@@ -2260,7 +2273,7 @@
     // areaId not valid.
     auto propIdAreaId2 = VhalPropIdAreaId{.propId = testInt32VecWindowProp(1), .areaId = 2};
 
-    auto status = vhal->getSupportedValuesLists(
+    auto status = getClient()->getSupportedValuesLists(
             std::vector<VhalPropIdAreaId>{propIdAreaId1, propIdAreaId2}, &results);
 
     ASSERT_TRUE(status.isOk()) << "Get non-okay status from getSupportedValuesLists"
@@ -2328,8 +2341,7 @@
     auto response = std::vector<MinMaxSupportedValueResult>({resultFromHardware});
     hardware->setMinMaxSupportedValueResponse(response);
 
-    auto vhal = ndk::SharedRefBase::make<DefaultVehicleHal>(std::move(hardware));
-    std::shared_ptr<IVehicle> client = IVehicle::fromBinder(vhal->asBinder());
+    setHardware(std::move(hardware));
 
     MinMaxSupportedValueResults results;
 
@@ -2337,14 +2349,14 @@
     auto propIdAreaId2 = VhalPropIdAreaId{.propId = testInt32VecWindowProp(2), .areaId = 2};
     auto propIdAreaId3 = VhalPropIdAreaId{.propId = testInt32VecWindowProp(3), .areaId = 0};
     auto propIdAreaId4 = VhalPropIdAreaId{.propId = testInt32VecWindowProp(4), .areaId = 4};
-    auto status = vhal->getMinMaxSupportedValue(
+    auto status = getClient()->getMinMaxSupportedValue(
             std::vector<VhalPropIdAreaId>{propIdAreaId1, propIdAreaId2, propIdAreaId3,
                                           propIdAreaId4},
             &results);
 
     ASSERT_TRUE(status.isOk()) << "Get non-okay status from getMinMaxSupportedValue"
                                << status.getMessage();
-    ASSERT_THAT(hardwarePtr->getMinMaxSupportedValueRequest(),
+    ASSERT_THAT(getHardware()->getMinMaxSupportedValueRequest(),
                 ElementsAre(PropIdAreaId{.propId = testInt32VecWindowProp(4), .areaId = 4}))
             << "Only valid request 4 should get to hardware";
 
@@ -2396,8 +2408,7 @@
     auto hardware = std::make_unique<MockVehicleHardware>();
     hardware->setPropertyConfigs(testConfigs);
 
-    auto vhal = ndk::SharedRefBase::make<DefaultVehicleHal>(std::move(hardware));
-    std::shared_ptr<IVehicle> client = IVehicle::fromBinder(vhal->asBinder());
+    setHardware(std::move(hardware));
 
     MinMaxSupportedValueResults results;
 
@@ -2406,7 +2417,7 @@
     // areaId not valid.
     auto propIdAreaId2 = VhalPropIdAreaId{.propId = testInt32VecWindowProp(1), .areaId = 2};
 
-    auto status = vhal->getMinMaxSupportedValue(
+    auto status = getClient()->getMinMaxSupportedValue(
             std::vector<VhalPropIdAreaId>{propIdAreaId1, propIdAreaId2}, &results);
 
     ASSERT_TRUE(status.isOk()) << "Get non-okay status from getMinMaxSupportedValue"
@@ -2448,22 +2459,21 @@
              }});
 
     auto hardware = std::make_unique<MockVehicleHardware>();
-    MockVehicleHardware* hardwarePtr = hardware.get();
     hardware->setPropertyConfigs(testConfigs);
 
-    auto vhal = ndk::SharedRefBase::make<DefaultVehicleHal>(std::move(hardware));
-    std::shared_ptr<IVehicle> client = IVehicle::fromBinder(vhal->asBinder());
+    setHardware(std::move(hardware));
 
     // This request is ignored because it does not have supported value info.
     auto propIdAreaId1 = VhalPropIdAreaId{.propId = testInt32VecProp(1), .areaId = 0};
     auto propIdAreaId2 = VhalPropIdAreaId{.propId = testInt32VecWindowProp(2), .areaId = 2};
-    auto status = client->registerSupportedValueChangeCallback(
+    auto status = getClient()->registerSupportedValueChangeCallback(
             getCallbackClient(), std::vector<VhalPropIdAreaId>{propIdAreaId1, propIdAreaId2});
 
     ASSERT_TRUE(status.isOk()) << "Get non-okay status from registerSupportedValueChangeCallback"
                                << status.getMessage();
-    ASSERT_THAT(hardwarePtr->getSubscribedSupportedValueChangePropIdAreaIds(),
-                ElementsAre(PropIdAreaId{.propId = testInt32VecWindowProp(2), .areaId = 2}));
+    ASSERT_THAT(
+            getHardware()->getSubscribedSupportedValueChangePropIdAreaIds(),
+            UnorderedElementsAre(PropIdAreaId{.propId = testInt32VecWindowProp(2), .areaId = 2}));
 }
 
 TEST_F(DefaultVehicleHalTest, testRegisterSupportedValueChangeCallback_invalidRequest) {
@@ -2477,11 +2487,10 @@
     auto hardware = std::make_unique<MockVehicleHardware>();
     hardware->setPropertyConfigs(testConfigs);
 
-    auto vhal = ndk::SharedRefBase::make<DefaultVehicleHal>(std::move(hardware));
-    std::shared_ptr<IVehicle> client = IVehicle::fromBinder(vhal->asBinder());
+    setHardware(std::move(hardware));
 
     auto propIdAreaId1 = VhalPropIdAreaId{.propId = testInt32VecProp(1), .areaId = 0};
-    auto status = client->registerSupportedValueChangeCallback(
+    auto status = getClient()->registerSupportedValueChangeCallback(
             getCallbackClient(), std::vector<VhalPropIdAreaId>{propIdAreaId1});
 
     ASSERT_FALSE(status.isOk()) << "registerSupportedValueChangeCallback must return error if one "
@@ -2508,11 +2517,10 @@
     hardware->setStatus("subscribeSupportedValueChange", StatusCode::INTERNAL_ERROR);
     hardware->setPropertyConfigs(testConfigs);
 
-    auto vhal = ndk::SharedRefBase::make<DefaultVehicleHal>(std::move(hardware));
-    std::shared_ptr<IVehicle> client = IVehicle::fromBinder(vhal->asBinder());
+    setHardware(std::move(hardware));
 
     auto propIdAreaId = VhalPropIdAreaId{.propId = testInt32VecWindowProp(2), .areaId = 2};
-    auto status = client->registerSupportedValueChangeCallback(
+    auto status = getClient()->registerSupportedValueChangeCallback(
             getCallbackClient(), std::vector<VhalPropIdAreaId>{propIdAreaId});
 
     ASSERT_FALSE(status.isOk()) << "registerSupportedValueChangeCallback must return error if "
@@ -2549,30 +2557,63 @@
              }});
 
     auto hardware = std::make_unique<MockVehicleHardware>();
-    MockVehicleHardware* hardwarePtr = hardware.get();
     hardware->setPropertyConfigs(testConfigs);
 
-    auto vhal = ndk::SharedRefBase::make<DefaultVehicleHal>(std::move(hardware));
-    std::shared_ptr<IVehicle> client = IVehicle::fromBinder(vhal->asBinder());
+    setHardware(std::move(hardware));
 
     auto propIdAreaId1 = VhalPropIdAreaId{.propId = testInt32VecProp(1), .areaId = 0};
     auto propIdAreaId2 = VhalPropIdAreaId{.propId = testInt32VecWindowProp(2), .areaId = 2};
-    auto status = client->registerSupportedValueChangeCallback(
+    auto status = getClient()->registerSupportedValueChangeCallback(
             getCallbackClient(), std::vector<VhalPropIdAreaId>{propIdAreaId1, propIdAreaId2});
 
     ASSERT_TRUE(status.isOk()) << "Get non-okay status from registerSupportedValueChangeCallback"
                                << status.getMessage();
 
-    status = client->unregisterSupportedValueChangeCallback(
+    status = getClient()->unregisterSupportedValueChangeCallback(
             getCallbackClient(), std::vector<VhalPropIdAreaId>{propIdAreaId1, propIdAreaId2});
 
     ASSERT_TRUE(status.isOk()) << "Get non-okay status from unregisterSupportedValueChangeCallback"
                                << status.getMessage();
 
-    ASSERT_TRUE(hardwarePtr->getSubscribedSupportedValueChangePropIdAreaIds().empty())
+    ASSERT_TRUE(getHardware()->getSubscribedSupportedValueChangePropIdAreaIds().empty())
             << "All registered [propId, areaId]s must be unregistered";
 }
 
+TEST_F(DefaultVehicleHalTest, testUnregisterSupportedValueChangeCallback_errorFromHardware) {
+    auto testConfigs = std::vector<VehiclePropConfig>({VehiclePropConfig{
+            .prop = testInt32VecProp(1),
+            .areaConfigs =
+                    {
+                            {.areaId = 0,
+                             .hasSupportedValueInfo =
+                                     HasSupportedValueInfo{
+                                             .hasMinSupportedValue = false,
+                                             .hasMaxSupportedValue = false,
+                                             .hasSupportedValuesList = true,
+                                     }},
+                    },
+    }});
+
+    auto hardware = std::make_unique<MockVehicleHardware>();
+    hardware->setStatus("unsubscribeSupportedValueChange", StatusCode::INTERNAL_ERROR);
+    hardware->setPropertyConfigs(testConfigs);
+
+    setHardware(std::move(hardware));
+
+    auto propIdAreaId = VhalPropIdAreaId{.propId = testInt32VecProp(1), .areaId = 0};
+    auto status = getClient()->registerSupportedValueChangeCallback(
+            getCallbackClient(), std::vector<VhalPropIdAreaId>{propIdAreaId});
+
+    ASSERT_TRUE(status.isOk()) << "Get non-okay status from registerSupportedValueChangeCallback"
+                               << status.getMessage();
+
+    status = getClient()->unregisterSupportedValueChangeCallback(
+            getCallbackClient(), std::vector<VhalPropIdAreaId>{propIdAreaId});
+
+    ASSERT_FALSE(status.isOk()) << "unregisterSupportedValueChangeCallback must return error if "
+                                   "VehicleHardware returns error";
+}
+
 TEST_F(DefaultVehicleHalTest, testUnregisterSupportedValueChangeCallback_ignoreUnregistered) {
     auto testConfigs = std::vector<VehiclePropConfig>(
             {VehiclePropConfig{
@@ -2603,20 +2644,245 @@
              }});
 
     auto hardware = std::make_unique<MockVehicleHardware>();
-    MockVehicleHardware* hardwarePtr = hardware.get();
     hardware->setPropertyConfigs(testConfigs);
 
-    auto vhal = ndk::SharedRefBase::make<DefaultVehicleHal>(std::move(hardware));
-    std::shared_ptr<IVehicle> client = IVehicle::fromBinder(vhal->asBinder());
+    setHardware(std::move(hardware));
 
     auto propIdAreaId1 = VhalPropIdAreaId{.propId = testInt32VecProp(1), .areaId = 0};
     auto propIdAreaId2 = VhalPropIdAreaId{.propId = testInt32VecWindowProp(2), .areaId = 2};
-    auto status = client->unregisterSupportedValueChangeCallback(
+    auto status = getClient()->unregisterSupportedValueChangeCallback(
             getCallbackClient(), std::vector<VhalPropIdAreaId>{propIdAreaId1, propIdAreaId2});
 
     ASSERT_TRUE(status.isOk());
 }
 
+TEST_F(DefaultVehicleHalTest, testSupportedValueChangeCallback) {
+    auto testConfigs = std::vector<VehiclePropConfig>(
+            {VehiclePropConfig{
+                     .prop = testInt32VecProp(1),
+                     .areaConfigs =
+                             {
+                                     {.areaId = 0,
+                                      .hasSupportedValueInfo =
+                                              HasSupportedValueInfo{
+                                                      .hasMinSupportedValue = false,
+                                                      .hasMaxSupportedValue = false,
+                                                      .hasSupportedValuesList = true,
+                                              }},
+                             },
+             },
+             VehiclePropConfig{
+                     .prop = testInt32VecWindowProp(2),
+                     .areaConfigs =
+                             {
+                                     {.areaId = 2,
+                                      .hasSupportedValueInfo =
+                                              HasSupportedValueInfo{
+                                                      .hasMinSupportedValue = true,
+                                                      .hasMaxSupportedValue = false,
+                                                      .hasSupportedValuesList = false,
+                                              }},
+                             },
+             }});
+
+    auto hardware = std::make_unique<MockVehicleHardware>();
+    hardware->setPropertyConfigs(testConfigs);
+
+    setHardware(std::move(hardware));
+
+    auto vhalPropIdAreaId1 = VhalPropIdAreaId{.propId = testInt32VecProp(1), .areaId = 0};
+    auto vhalPropIdAreaId2 = VhalPropIdAreaId{.propId = testInt32VecWindowProp(2), .areaId = 2};
+    auto propIdAreaId1 = PropIdAreaId{.propId = testInt32VecProp(1), .areaId = 0};
+    auto propIdAreaId2 = PropIdAreaId{.propId = testInt32VecWindowProp(2), .areaId = 2};
+    auto status = getClient()->registerSupportedValueChangeCallback(
+            getCallbackClient(),
+            std::vector<VhalPropIdAreaId>{vhalPropIdAreaId1, vhalPropIdAreaId2});
+
+    ASSERT_TRUE(status.isOk()) << "Get non-okay status from registerSupportedValueChangeCallback"
+                               << status.getMessage();
+
+    getHardware()->sendSupportedValueChangeEvent(
+            std::vector<PropIdAreaId>{propIdAreaId1, propIdAreaId2});
+
+    getCallback()->waitForOnSupportedValueChange(/*size=*/2, /*timeoutInNano=*/1'000'000'000);
+
+    ASSERT_THAT(getCallback()->getOnSupportedValueChangePropIdAreaIds(),
+                ElementsAre(vhalPropIdAreaId1, vhalPropIdAreaId2));
+}
+
+TEST_F(DefaultVehicleHalTest, testSupportedValueChangeCallback_unregister) {
+    auto testConfigs = std::vector<VehiclePropConfig>(
+            {VehiclePropConfig{
+                     .prop = testInt32VecProp(1),
+                     .areaConfigs =
+                             {
+                                     {.areaId = 0,
+                                      .hasSupportedValueInfo =
+                                              HasSupportedValueInfo{
+                                                      .hasMinSupportedValue = false,
+                                                      .hasMaxSupportedValue = false,
+                                                      .hasSupportedValuesList = true,
+                                              }},
+                             },
+             },
+             VehiclePropConfig{
+                     .prop = testInt32VecWindowProp(2),
+                     .areaConfigs =
+                             {
+                                     {.areaId = 2,
+                                      .hasSupportedValueInfo =
+                                              HasSupportedValueInfo{
+                                                      .hasMinSupportedValue = true,
+                                                      .hasMaxSupportedValue = false,
+                                                      .hasSupportedValuesList = false,
+                                              }},
+                             },
+             }});
+
+    auto hardware = std::make_unique<MockVehicleHardware>();
+    hardware->setPropertyConfigs(testConfigs);
+
+    setHardware(std::move(hardware));
+
+    auto vhalPropIdAreaId1 = VhalPropIdAreaId{.propId = testInt32VecProp(1), .areaId = 0};
+    auto vhalPropIdAreaId2 = VhalPropIdAreaId{.propId = testInt32VecWindowProp(2), .areaId = 2};
+    auto propIdAreaId1 = PropIdAreaId{.propId = testInt32VecProp(1), .areaId = 0};
+    auto propIdAreaId2 = PropIdAreaId{.propId = testInt32VecWindowProp(2), .areaId = 2};
+    auto status = getClient()->registerSupportedValueChangeCallback(
+            getCallbackClient(),
+            std::vector<VhalPropIdAreaId>{vhalPropIdAreaId1, vhalPropIdAreaId2});
+
+    ASSERT_TRUE(status.isOk()) << "Get non-okay status from registerSupportedValueChangeCallback"
+                               << status.getMessage();
+
+    // After unregistering for propIdAreaId1, we should no longer receive events for it.
+    status = getClient()->unregisterSupportedValueChangeCallback(
+            getCallbackClient(), std::vector<VhalPropIdAreaId>{vhalPropIdAreaId1});
+
+    ASSERT_TRUE(status.isOk()) << "Get non-okay status from unregisterSupportedValueChangeCallback"
+                               << status.getMessage();
+
+    getHardware()->sendSupportedValueChangeEvent(
+            std::vector<PropIdAreaId>{propIdAreaId1, propIdAreaId2});
+
+    getCallback()->waitForOnSupportedValueChange(/*size=*/1, /*timeoutInNano=*/1'000'000'000);
+
+    ASSERT_THAT(getCallback()->getOnSupportedValueChangePropIdAreaIds(),
+                ElementsAre(vhalPropIdAreaId2));
+}
+
+TEST_F(DefaultVehicleHalTest, testRegisterSupportedValueChangeCallback_twoClients) {
+    auto testConfigs = std::vector<VehiclePropConfig>(
+            {VehiclePropConfig{
+                     .prop = testInt32VecProp(1),
+                     .areaConfigs =
+                             {
+                                     {.areaId = 0,
+                                      .hasSupportedValueInfo =
+                                              HasSupportedValueInfo{
+                                                      .hasMinSupportedValue = false,
+                                                      .hasMaxSupportedValue = false,
+                                                      .hasSupportedValuesList = true,
+                                              }},
+                             },
+             },
+             VehiclePropConfig{
+                     .prop = testInt32VecWindowProp(2),
+                     .areaConfigs =
+                             {
+                                     {.areaId = 2,
+                                      .hasSupportedValueInfo =
+                                              HasSupportedValueInfo{
+                                                      .hasMinSupportedValue = true,
+                                                      .hasMaxSupportedValue = false,
+                                                      .hasSupportedValuesList = false,
+                                              }},
+                             },
+             }});
+
+    auto hardware = std::make_unique<MockVehicleHardware>();
+    hardware->setPropertyConfigs(testConfigs);
+
+    setHardware(std::move(hardware));
+
+    auto vhalPropIdAreaId1 = VhalPropIdAreaId{.propId = testInt32VecProp(1), .areaId = 0};
+    auto vhalPropIdAreaId2 = VhalPropIdAreaId{.propId = testInt32VecWindowProp(2), .areaId = 2};
+    auto propIdAreaId1 = PropIdAreaId{.propId = testInt32VecProp(1), .areaId = 0};
+    auto propIdAreaId2 = PropIdAreaId{.propId = testInt32VecWindowProp(2), .areaId = 2};
+    std::shared_ptr<IVehicleCallback> callback1 = ndk::SharedRefBase::make<MockVehicleCallback>();
+    std::shared_ptr<IVehicleCallback> callback2 = ndk::SharedRefBase::make<MockVehicleCallback>();
+    // Keep binder alive to prevent binder reuse.
+    SpAIBinder binder1 = callback1->asBinder();
+    // Keep binder alive to prevent binder reuse.
+    SpAIBinder binder2 = callback2->asBinder();
+
+    auto status = getClient()->registerSupportedValueChangeCallback(
+            callback1, std::vector<VhalPropIdAreaId>{vhalPropIdAreaId1, vhalPropIdAreaId2});
+
+    ASSERT_TRUE(status.isOk()) << "Get non-okay status from registerSupportedValueChangeCallback"
+                               << status.getMessage();
+
+    status = getClient()->registerSupportedValueChangeCallback(
+            callback2, std::vector<VhalPropIdAreaId>{vhalPropIdAreaId1, vhalPropIdAreaId2});
+
+    ASSERT_TRUE(status.isOk()) << "Get non-okay status from registerSupportedValueChangeCallback"
+                               << status.getMessage();
+
+    ASSERT_THAT(getHardware()->getSubscribedSupportedValueChangePropIdAreaIds(),
+                UnorderedElementsAre(propIdAreaId1, propIdAreaId2));
+
+    status = getClient()->unregisterSupportedValueChangeCallback(
+            callback1, std::vector<VhalPropIdAreaId>{vhalPropIdAreaId1, vhalPropIdAreaId2});
+
+    ASSERT_TRUE(status.isOk()) << "Get non-okay status from unregisterSupportedValueChangeCallback"
+                               << status.getMessage();
+
+    ASSERT_THAT(getHardware()->getSubscribedSupportedValueChangePropIdAreaIds(),
+                UnorderedElementsAre(propIdAreaId1, propIdAreaId2))
+            << "[propId, areaId] must still be subscribed if one of the two clients unsubscribe";
+
+    status = getClient()->unregisterSupportedValueChangeCallback(
+            callback2, std::vector<VhalPropIdAreaId>{vhalPropIdAreaId1, vhalPropIdAreaId2});
+
+    ASSERT_TRUE(status.isOk()) << "Get non-okay status from unregisterSupportedValueChangeCallback"
+                               << status.getMessage();
+
+    ASSERT_TRUE(getHardware()->getSubscribedSupportedValueChangePropIdAreaIds().empty())
+            << "All registered [propId, areaId]s must be unregistered";
+}
+
+TEST_F(DefaultVehicleHalTest, testRegisterSupportedValueChange_monitorBinderLifecycle) {
+    auto testConfigs = std::vector<VehiclePropConfig>({VehiclePropConfig{
+            .prop = testInt32VecProp(1),
+            .areaConfigs =
+                    {
+                            {.areaId = 0,
+                             .hasSupportedValueInfo =
+                                     HasSupportedValueInfo{
+                                             .hasMinSupportedValue = false,
+                                             .hasMaxSupportedValue = false,
+                                             .hasSupportedValuesList = true,
+                                     }},
+                    },
+    }});
+
+    auto hardware = std::make_unique<MockVehicleHardware>();
+    hardware->setPropertyConfigs(testConfigs);
+
+    setHardware(std::move(hardware));
+
+    auto vhalPropIdAreaId = VhalPropIdAreaId{.propId = testInt32VecProp(1), .areaId = 0};
+
+    auto status = getClient()->registerSupportedValueChangeCallback(
+            getCallbackClient(), std::vector<VhalPropIdAreaId>{vhalPropIdAreaId});
+
+    ASSERT_TRUE(status.isOk()) << "Get non-okay status from registerSupportedValueChangeCallback"
+                               << status.getMessage();
+
+    ASSERT_EQ(countOnBinderDiedContexts(), static_cast<size_t>(1))
+            << "expect one OnBinderDied context when one client is registered";
+}
+
 }  // namespace vehicle
 }  // namespace automotive
 }  // namespace hardware
diff --git a/automotive/vehicle/aidl/impl/current/vhal/test/MockVehicleCallback.cpp b/automotive/vehicle/aidl/impl/current/vhal/test/MockVehicleCallback.cpp
index 72c5dc5..a557b05 100644
--- a/automotive/vehicle/aidl/impl/current/vhal/test/MockVehicleCallback.cpp
+++ b/automotive/vehicle/aidl/impl/current/vhal/test/MockVehicleCallback.cpp
@@ -92,9 +92,14 @@
     return result;
 }
 
-ScopedAStatus MockVehicleCallback::onSupportedValueChange(const std::vector<PropIdAreaId>&) {
-    // TODO(b/381020465): Add relevant implementation.
-    return ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
+ScopedAStatus MockVehicleCallback::onSupportedValueChange(
+        const std::vector<PropIdAreaId>& propIdAreaIds) {
+    {
+        std::scoped_lock<std::mutex> lockGuard(mLock);
+        mOnSupportedValueChangePropIdAreaIds = propIdAreaIds;
+    }
+    mCond.notify_all();
+    return ScopedAStatus::ok();
 }
 
 std::optional<GetValueResults> MockVehicleCallback::nextGetValueResults() {
@@ -151,6 +156,19 @@
     });
 }
 
+bool MockVehicleCallback::waitForOnSupportedValueChange(size_t size, size_t timeoutInNano) {
+    std::unique_lock lk(mLock);
+    return mCond.wait_for(lk, std::chrono::nanoseconds(timeoutInNano), [this, size] {
+        ScopedLockAssertion lockAssertion(mLock);
+        return mOnSupportedValueChangePropIdAreaIds.size() >= size;
+    });
+}
+
+std::vector<PropIdAreaId> MockVehicleCallback::getOnSupportedValueChangePropIdAreaIds() {
+    std::scoped_lock<std::mutex> lockGuard(mLock);
+    return mOnSupportedValueChangePropIdAreaIds;
+}
+
 }  // namespace vehicle
 }  // namespace automotive
 }  // namespace hardware
diff --git a/automotive/vehicle/aidl/impl/current/vhal/test/MockVehicleCallback.h b/automotive/vehicle/aidl/impl/current/vhal/test/MockVehicleCallback.h
index 81a85ff..be181a5 100644
--- a/automotive/vehicle/aidl/impl/current/vhal/test/MockVehicleCallback.h
+++ b/automotive/vehicle/aidl/impl/current/vhal/test/MockVehicleCallback.h
@@ -73,6 +73,9 @@
     bool waitForSetValueResults(size_t size, size_t timeoutInNano);
     bool waitForGetValueResults(size_t size, size_t timeoutInNano);
     bool waitForOnPropertyEventResults(size_t size, size_t timeoutInNano);
+    bool waitForOnSupportedValueChange(size_t size, size_t timeoutInNano);
+    std::vector<aidl::android::hardware::automotive::vehicle::PropIdAreaId>
+    getOnSupportedValueChangePropIdAreaIds();
 
   private:
     std::mutex mLock;
@@ -86,6 +89,8 @@
     int32_t mSharedMemoryFileCount GUARDED_BY(mLock);
     std::list<aidl::android::hardware::automotive::vehicle::VehiclePropErrors>
             mOnPropertySetErrorResults GUARDED_BY(mLock);
+    std::vector<aidl::android::hardware::automotive::vehicle::PropIdAreaId>
+            mOnSupportedValueChangePropIdAreaIds GUARDED_BY(mLock);
 };
 
 }  // namespace vehicle
diff --git a/automotive/vehicle/aidl/impl/current/vhal/test/MockVehicleHardware.cpp b/automotive/vehicle/aidl/impl/current/vhal/test/MockVehicleHardware.cpp
index 11f1835..197e99d 100644
--- a/automotive/vehicle/aidl/impl/current/vhal/test/MockVehicleHardware.cpp
+++ b/automotive/vehicle/aidl/impl/current/vhal/test/MockVehicleHardware.cpp
@@ -228,6 +228,12 @@
     mPropertySetErrorCallback = std::move(callback);
 }
 
+void MockVehicleHardware::registerSupportedValueChangeCallback(
+        std::unique_ptr<const SupportedValueChangeCallback> callback) {
+    std::scoped_lock<std::mutex> lockGuard(mLock);
+    mSupportedValueChangeCallback = std::move(callback);
+}
+
 void MockVehicleHardware::setPropertyConfigs(const std::vector<VehiclePropConfig>& configs) {
     std::scoped_lock<std::mutex> lockGuard(mLock);
     mPropertyConfigs = configs;
@@ -419,6 +425,12 @@
     (*mPropertySetErrorCallback)(errorEvents);
 }
 
+void MockVehicleHardware::sendSupportedValueChangeEvent(
+        const std::vector<PropIdAreaId>& propIdAreaIds) {
+    std::scoped_lock<std::mutex> lockGuard(mLock);
+    (*mSupportedValueChangeCallback)(propIdAreaIds);
+}
+
 bool MockVehicleHardware::getAllPropertyConfigsCalled() {
     std::scoped_lock<std::mutex> lockGuard(mLock);
     return mGetAllPropertyConfigsCalled;
diff --git a/automotive/vehicle/aidl/impl/current/vhal/test/MockVehicleHardware.h b/automotive/vehicle/aidl/impl/current/vhal/test/MockVehicleHardware.h
index e7359db..444166b 100644
--- a/automotive/vehicle/aidl/impl/current/vhal/test/MockVehicleHardware.h
+++ b/automotive/vehicle/aidl/impl/current/vhal/test/MockVehicleHardware.h
@@ -62,6 +62,8 @@
     void registerOnPropertyChangeEvent(
             std::unique_ptr<const PropertyChangeCallback> callback) override;
     void registerOnPropertySetErrorEvent(std::unique_ptr<const PropertySetErrorCallback>) override;
+    void registerSupportedValueChangeCallback(
+            std::unique_ptr<const SupportedValueChangeCallback>) override;
     aidl::android::hardware::automotive::vehicle::StatusCode subscribe(
             aidl::android::hardware::automotive::vehicle::SubscribeOptions options) override;
     aidl::android::hardware::automotive::vehicle::StatusCode unsubscribe(int32_t propId,
@@ -112,6 +114,7 @@
     void setDumpResult(DumpResult result);
     void sendOnPropertySetErrorEvent(const std::vector<SetValueErrorEvent>& errorEvents);
     void setPropertyOnChangeEventBatchingWindow(std::chrono::nanoseconds window);
+    void sendSupportedValueChangeEvent(const std::vector<PropIdAreaId>& propIdAreaIds);
 
     std::set<std::pair<int32_t, int32_t>> getSubscribedOnChangePropIdAreaIds();
     std::set<std::pair<int32_t, int32_t>> getSubscribedContinuousPropIdAreaIds();
@@ -150,6 +153,8 @@
     int64_t mSleepTime GUARDED_BY(mLock) = 0;
     std::unique_ptr<const PropertyChangeCallback> mPropertyChangeCallback GUARDED_BY(mLock);
     std::unique_ptr<const PropertySetErrorCallback> mPropertySetErrorCallback GUARDED_BY(mLock);
+    std::unique_ptr<const SupportedValueChangeCallback> mSupportedValueChangeCallback
+            GUARDED_BY(mLock);
     std::function<aidl::android::hardware::automotive::vehicle::StatusCode(
             std::shared_ptr<const GetValuesCallback>,
             const std::vector<aidl::android::hardware::automotive::vehicle::GetValueRequest>&)>
diff --git a/automotive/vehicle/aidl/impl/current/vhal/test/SubscriptionManagerTest.cpp b/automotive/vehicle/aidl/impl/current/vhal/test/SubscriptionManagerTest.cpp
index 2ac3a73..6d0844a 100644
--- a/automotive/vehicle/aidl/impl/current/vhal/test/SubscriptionManagerTest.cpp
+++ b/automotive/vehicle/aidl/impl/current/vhal/test/SubscriptionManagerTest.cpp
@@ -887,6 +887,67 @@
             << "Must filter out outdated property events if VUR is enabled";
 }
 
+TEST_F(SubscriptionManagerTest, testSubscribeSupportedValueChange) {
+    SpAIBinder binder1 = ndk::SharedRefBase::make<PropertyCallback>()->asBinder();
+    std::shared_ptr<IVehicleCallback> client1 = IVehicleCallback::fromBinder(binder1);
+    SpAIBinder binder2 = ndk::SharedRefBase::make<PropertyCallback>()->asBinder();
+    std::shared_ptr<IVehicleCallback> client2 = IVehicleCallback::fromBinder(binder2);
+
+    PropIdAreaId propIdAreaId1 = {.propId = 0, .areaId = 0};
+    PropIdAreaId propIdAreaId2 = {.propId = 1, .areaId = 1};
+
+    auto result = getManager()->subscribeSupportedValueChange(client1, {propIdAreaId1});
+
+    ASSERT_TRUE(result.ok()) << "failed to call subscribeSupportedValueChange"
+                             << result.error().message();
+
+    result = getManager()->subscribeSupportedValueChange(client2, {propIdAreaId1, propIdAreaId2});
+
+    ASSERT_TRUE(result.ok()) << "failed to call subscribeSupportedValueChange"
+                             << result.error().message();
+
+    auto clients = getManager()->getSubscribedClientsForSupportedValueChange(
+            {propIdAreaId1, propIdAreaId2});
+
+    ASSERT_THAT(clients[client1], UnorderedElementsAre(propIdAreaId1))
+            << "Incorrect supported value change events for client1";
+    ASSERT_THAT(clients[client2], UnorderedElementsAre(propIdAreaId1, propIdAreaId2))
+            << "Incorrect supported value change events for client2";
+}
+
+TEST_F(SubscriptionManagerTest, testUnsubscribeSupportedValueChange) {
+    SpAIBinder binder1 = ndk::SharedRefBase::make<PropertyCallback>()->asBinder();
+    std::shared_ptr<IVehicleCallback> client1 = IVehicleCallback::fromBinder(binder1);
+    SpAIBinder binder2 = ndk::SharedRefBase::make<PropertyCallback>()->asBinder();
+    std::shared_ptr<IVehicleCallback> client2 = IVehicleCallback::fromBinder(binder2);
+
+    PropIdAreaId propIdAreaId1 = {.propId = 0, .areaId = 0};
+    PropIdAreaId propIdAreaId2 = {.propId = 1, .areaId = 1};
+
+    auto result = getManager()->subscribeSupportedValueChange(client1, {propIdAreaId1});
+
+    ASSERT_TRUE(result.ok()) << "failed to call subscribeSupportedValueChange"
+                             << result.error().message();
+
+    result = getManager()->subscribeSupportedValueChange(client2, {propIdAreaId1, propIdAreaId2});
+
+    ASSERT_TRUE(result.ok()) << "failed to call subscribeSupportedValueChange"
+                             << result.error().message();
+
+    result = getManager()->unsubscribeSupportedValueChange(binder2.get(), {propIdAreaId1});
+
+    ASSERT_TRUE(result.ok()) << "failed to call unsubscribeSupportedValueChange"
+                             << result.error().message();
+
+    auto clients = getManager()->getSubscribedClientsForSupportedValueChange(
+            {propIdAreaId1, propIdAreaId2});
+
+    ASSERT_THAT(clients[client1], UnorderedElementsAre(propIdAreaId1))
+            << "Incorrect supported value change events for client1";
+    ASSERT_THAT(clients[client2], UnorderedElementsAre(propIdAreaId2))
+            << "Incorrect supported value change events for client2";
+}
+
 }  // namespace vehicle
 }  // namespace automotive
 }  // namespace hardware
diff --git a/automotive/vehicle/aidl_property/aidl_api/android.hardware.automotive.vehicle.property/current/android/hardware/automotive/vehicle/VehicleProperty.aidl b/automotive/vehicle/aidl_property/aidl_api/android.hardware.automotive.vehicle.property/current/android/hardware/automotive/vehicle/VehicleProperty.aidl
index 6188dd9..5abf667 100644
--- a/automotive/vehicle/aidl_property/aidl_api/android.hardware.automotive.vehicle.property/current/android/hardware/automotive/vehicle/VehicleProperty.aidl
+++ b/automotive/vehicle/aidl_property/aidl_api/android.hardware.automotive.vehicle.property/current/android/hardware/automotive/vehicle/VehicleProperty.aidl
@@ -32,7 +32,7 @@
 // later when a module using the interface is updated, e.g., Mainline modules.
 
 package android.hardware.automotive.vehicle;
-@Backing(type="int") @VintfStability
+@Backing(type="int") @JavaDerive(toString=true) @VintfStability
 enum VehicleProperty {
   INVALID = 0x00000000,
   INFO_VIN = (((0x0100 + 0x10000000) + 0x01000000) + 0x00100000) /* 286261504 */,
diff --git a/automotive/vehicle/aidl_property/android/hardware/automotive/vehicle/VehicleProperty.aidl b/automotive/vehicle/aidl_property/android/hardware/automotive/vehicle/VehicleProperty.aidl
index f96472b..7f5aeb0 100644
--- a/automotive/vehicle/aidl_property/android/hardware/automotive/vehicle/VehicleProperty.aidl
+++ b/automotive/vehicle/aidl_property/android/hardware/automotive/vehicle/VehicleProperty.aidl
@@ -39,6 +39,7 @@
  * in response to such ill formed requests.
  */
 @VintfStability
+@JavaDerive(toString=true)
 @Backing(type="int")
 enum VehicleProperty {
     /**