diff --git a/automotive/vehicle/2.0/default/impl/vhal_v2_0/EmulatedVehicleHal.cpp b/automotive/vehicle/2.0/default/impl/vhal_v2_0/EmulatedVehicleHal.cpp
index 84354c1..bdc5244 100644
--- a/automotive/vehicle/2.0/default/impl/vhal_v2_0/EmulatedVehicleHal.cpp
+++ b/automotive/vehicle/2.0/default/impl/vhal_v2_0/EmulatedVehicleHal.cpp
@@ -16,8 +16,12 @@
 #define LOG_TAG "DefaultVehicleHal_v2_0"
 
 #include <android-base/macros.h>
+#include <android-base/properties.h>
 #include <android/log.h>
+#include <dirent.h>
 #include <sys/system_properties.h>
+#include <fstream>
+#include <regex>
 
 #include "EmulatedVehicleHal.h"
 #include "JsonFakeValueGenerator.h"
@@ -101,6 +105,30 @@
     mVehicleClient->registerPropertyValueCallback(std::bind(&EmulatedVehicleHal::onPropertyValue,
                                                             this, std::placeholders::_1,
                                                             std::placeholders::_2));
+
+    mInitVhalValueOverride =
+            android::base::GetBoolProperty("persist.vendor.vhal_init_value_override", false);
+    if (mInitVhalValueOverride) {
+        getAllPropertiesOverride();
+    }
+}
+
+void EmulatedVehicleHal::getAllPropertiesOverride() {
+    if (auto dir = opendir("/vendor/etc/vhaloverride/")) {
+        std::regex reg_json(".*[.]json", std::regex::icase);
+        while (auto f = readdir(dir)) {
+            if (!regex_match(f->d_name, reg_json)) {
+                continue;
+            }
+            std::string file = "/vendor/etc/vhaloverride/" + std::string(f->d_name);
+            JsonFakeValueGenerator tmpGenerator(file);
+
+            std::vector<VehiclePropValue> propvalues = tmpGenerator.getAllEvents();
+            mVehiclePropertiesOverride.insert(std::end(mVehiclePropertiesOverride),
+                                              std::begin(propvalues), std::end(propvalues));
+        }
+        closedir(dir);
+    }
 }
 
 VehicleHal::VehiclePropValuePtr EmulatedVehicleHal::get(
@@ -277,6 +305,13 @@
                 }
             } else {
                 prop.value = it.initialValue;
+                if (mInitVhalValueOverride) {
+                    for (auto& itOverride : mVehiclePropertiesOverride) {
+                        if (itOverride.prop == cfg.prop) {
+                            prop.value = itOverride.value;
+                        }
+                    }
+                }
             }
             mPropStore->writeValue(prop, shouldUpdateStatus);
         }
diff --git a/automotive/vehicle/2.0/default/impl/vhal_v2_0/EmulatedVehicleHal.h b/automotive/vehicle/2.0/default/impl/vhal_v2_0/EmulatedVehicleHal.h
index dc05145..cba4b8a 100644
--- a/automotive/vehicle/2.0/default/impl/vhal_v2_0/EmulatedVehicleHal.h
+++ b/automotive/vehicle/2.0/default/impl/vhal_v2_0/EmulatedVehicleHal.h
@@ -62,6 +62,7 @@
     //  Methods from EmulatedVehicleHalIface
     bool setPropertyFromVehicle(const VehiclePropValue& propValue) override;
     std::vector<VehiclePropValue> getAllProperties() const override;
+    void getAllPropertiesOverride();
 
 private:
     constexpr std::chrono::nanoseconds hertzToNanoseconds(float hz) const {
@@ -87,6 +88,8 @@
     RecurrentTimer mRecurrentTimer;
     VehicleHalClient* mVehicleClient;
     bool mInEmulator;
+    bool mInitVhalValueOverride;
+    std::vector<VehiclePropValue> mVehiclePropertiesOverride;
 };
 
 }  // impl
diff --git a/automotive/vehicle/2.0/default/impl/vhal_v2_0/JsonFakeValueGenerator.cpp b/automotive/vehicle/2.0/default/impl/vhal_v2_0/JsonFakeValueGenerator.cpp
index 8677f83..890eb33 100644
--- a/automotive/vehicle/2.0/default/impl/vhal_v2_0/JsonFakeValueGenerator.cpp
+++ b/automotive/vehicle/2.0/default/impl/vhal_v2_0/JsonFakeValueGenerator.cpp
@@ -48,6 +48,22 @@
     mNumOfIterations = v.int32Values.size() < 2 ? -1 : v.int32Values[1];
 }
 
+JsonFakeValueGenerator::JsonFakeValueGenerator(std::string path) {
+    std::ifstream ifs(path);
+    if (!ifs) {
+        ALOGE("%s: couldn't open %s for parsing.", __func__, path.c_str());
+    }
+    mGenCfg = {
+        .index = 0,
+        .events = parseFakeValueJson(ifs),
+    };
+    mNumOfIterations = mGenCfg.events.size();
+}
+
+std::vector<VehiclePropValue> JsonFakeValueGenerator::getAllEvents() {
+    return mGenCfg.events;
+}
+
 VehiclePropValue JsonFakeValueGenerator::nextEvent() {
     VehiclePropValue generatedValue;
     if (!hasNext()) {
@@ -109,6 +125,7 @@
 
         Json::Value rawEventValue = rawEvent["value"];
         auto& value = event.value;
+        int32_t count;
         switch (getPropType(event.prop)) {
             case VehiclePropertyType::BOOLEAN:
             case VehiclePropertyType::INT32:
@@ -126,6 +143,13 @@
             case VehiclePropertyType::STRING:
                 value.stringValue = rawEventValue.asString();
                 break;
+            case VehiclePropertyType::INT32_VEC:
+                value.int32Values.resize(rawEventValue.size());
+                count = 0;
+                for (auto& it : rawEventValue) {
+                    value.int32Values[count++] = it.asInt();
+                }
+                break;
             case VehiclePropertyType::MIXED:
                 copyMixedValueJson(value, rawEventValue);
                 if (isDiagnosticProperty(event.prop)) {
diff --git a/automotive/vehicle/2.0/default/impl/vhal_v2_0/JsonFakeValueGenerator.h b/automotive/vehicle/2.0/default/impl/vhal_v2_0/JsonFakeValueGenerator.h
index 70575f7..dc8ff66 100644
--- a/automotive/vehicle/2.0/default/impl/vhal_v2_0/JsonFakeValueGenerator.h
+++ b/automotive/vehicle/2.0/default/impl/vhal_v2_0/JsonFakeValueGenerator.h
@@ -41,9 +41,12 @@
 
 public:
     JsonFakeValueGenerator(const VehiclePropValue& request);
+    JsonFakeValueGenerator(std::string path);
+
     ~JsonFakeValueGenerator() = default;
 
     VehiclePropValue nextEvent();
+    std::vector<VehiclePropValue> getAllEvents();
 
     bool hasNext();