diff --git a/automotive/vehicle/aidl/emu_metadata/android.hardware.automotive.vehicle-types-meta.json b/automotive/vehicle/aidl/emu_metadata/android.hardware.automotive.vehicle-types-meta.json
index ac32272..d49fb61 100644
--- a/automotive/vehicle/aidl/emu_metadata/android.hardware.automotive.vehicle-types-meta.json
+++ b/automotive/vehicle/aidl/emu_metadata/android.hardware.automotive.vehicle-types-meta.json
@@ -240,6 +240,11 @@
                 "description": "Impact detected.\nBit flag property to relay information on whether an impact has occurred on a particular side of the vehicle as described through the ImpactSensorLocation enum. As a bit flag property, this property can be set to multiple ORed together values of the enum when necessary.\nFor the global area ID (0), {@code getSupportedValuesList} must return a {@code SupportedValuesListResult} that contains supported values unless all bit flags of ImpactSensorLocation are supported.\nFor backward compatibility, if {@code SupportedValuesListResult} is defined, {@code VehicleAreaConfig#supportedEnumValues} must be set to the same values."
             },
             {
+                "name": "Vehicle horn engaged.",
+                "value": 287310656,
+                "description": "Vehicle horn engaged.\nThis property must communicate if the vehicle's horn is currently engaged or not. If true, the horn is engaged. If false, the horn is disengaged."
+            },
+            {
                 "name": "Currently selected gear",
                 "value": 289408000,
                 "data_enums": [
diff --git a/automotive/vehicle/aidl/generated_lib/4/cpp/AccessForVehicleProperty.h b/automotive/vehicle/aidl/generated_lib/4/cpp/AccessForVehicleProperty.h
index 3040937..72e483b 100644
--- a/automotive/vehicle/aidl/generated_lib/4/cpp/AccessForVehicleProperty.h
+++ b/automotive/vehicle/aidl/generated_lib/4/cpp/AccessForVehicleProperty.h
@@ -76,6 +76,7 @@
         {VehicleProperty::CRITICALLY_LOW_TIRE_PRESSURE, VehiclePropertyAccess::READ},
         {VehicleProperty::ENGINE_IDLE_AUTO_STOP_ENABLED, VehiclePropertyAccess::READ_WRITE},
         {VehicleProperty::IMPACT_DETECTED, VehiclePropertyAccess::READ},
+        {VehicleProperty::VEHICLE_HORN_ENGAGED, VehiclePropertyAccess::READ_WRITE},
         {VehicleProperty::GEAR_SELECTION, VehiclePropertyAccess::READ},
         {VehicleProperty::CURRENT_GEAR, VehiclePropertyAccess::READ},
         {VehicleProperty::PARKING_BRAKE_ON, VehiclePropertyAccess::READ},
diff --git a/automotive/vehicle/aidl/generated_lib/4/cpp/ChangeModeForVehicleProperty.h b/automotive/vehicle/aidl/generated_lib/4/cpp/ChangeModeForVehicleProperty.h
index 624c1a1..4a156fa 100644
--- a/automotive/vehicle/aidl/generated_lib/4/cpp/ChangeModeForVehicleProperty.h
+++ b/automotive/vehicle/aidl/generated_lib/4/cpp/ChangeModeForVehicleProperty.h
@@ -76,6 +76,7 @@
         {VehicleProperty::CRITICALLY_LOW_TIRE_PRESSURE, VehiclePropertyChangeMode::STATIC},
         {VehicleProperty::ENGINE_IDLE_AUTO_STOP_ENABLED, VehiclePropertyChangeMode::ON_CHANGE},
         {VehicleProperty::IMPACT_DETECTED, VehiclePropertyChangeMode::ON_CHANGE},
+        {VehicleProperty::VEHICLE_HORN_ENGAGED, VehiclePropertyChangeMode::ON_CHANGE},
         {VehicleProperty::GEAR_SELECTION, VehiclePropertyChangeMode::ON_CHANGE},
         {VehicleProperty::CURRENT_GEAR, VehiclePropertyChangeMode::ON_CHANGE},
         {VehicleProperty::PARKING_BRAKE_ON, VehiclePropertyChangeMode::ON_CHANGE},
diff --git a/automotive/vehicle/aidl/generated_lib/4/cpp/VersionForVehicleProperty.h b/automotive/vehicle/aidl/generated_lib/4/cpp/VersionForVehicleProperty.h
index b8dbc1f..4b24441 100644
--- a/automotive/vehicle/aidl/generated_lib/4/cpp/VersionForVehicleProperty.h
+++ b/automotive/vehicle/aidl/generated_lib/4/cpp/VersionForVehicleProperty.h
@@ -75,6 +75,7 @@
         {VehicleProperty::CRITICALLY_LOW_TIRE_PRESSURE, 2},
         {VehicleProperty::ENGINE_IDLE_AUTO_STOP_ENABLED, 2},
         {VehicleProperty::IMPACT_DETECTED, 3},
+        {VehicleProperty::VEHICLE_HORN_ENGAGED, 4},
         {VehicleProperty::GEAR_SELECTION, 2},
         {VehicleProperty::CURRENT_GEAR, 2},
         {VehicleProperty::PARKING_BRAKE_ON, 2},
diff --git a/automotive/vehicle/aidl/generated_lib/4/java/AccessForVehicleProperty.java b/automotive/vehicle/aidl/generated_lib/4/java/AccessForVehicleProperty.java
index 7c83b87..b61adc9 100644
--- a/automotive/vehicle/aidl/generated_lib/4/java/AccessForVehicleProperty.java
+++ b/automotive/vehicle/aidl/generated_lib/4/java/AccessForVehicleProperty.java
@@ -69,6 +69,7 @@
         Map.entry(VehicleProperty.CRITICALLY_LOW_TIRE_PRESSURE, VehiclePropertyAccess.READ),
         Map.entry(VehicleProperty.ENGINE_IDLE_AUTO_STOP_ENABLED, VehiclePropertyAccess.READ_WRITE),
         Map.entry(VehicleProperty.IMPACT_DETECTED, VehiclePropertyAccess.READ),
+        Map.entry(VehicleProperty.VEHICLE_HORN_ENGAGED, VehiclePropertyAccess.READ_WRITE),
         Map.entry(VehicleProperty.GEAR_SELECTION, VehiclePropertyAccess.READ),
         Map.entry(VehicleProperty.CURRENT_GEAR, VehiclePropertyAccess.READ),
         Map.entry(VehicleProperty.PARKING_BRAKE_ON, VehiclePropertyAccess.READ),
diff --git a/automotive/vehicle/aidl/generated_lib/4/java/ChangeModeForVehicleProperty.java b/automotive/vehicle/aidl/generated_lib/4/java/ChangeModeForVehicleProperty.java
index 9877c10..9282940 100644
--- a/automotive/vehicle/aidl/generated_lib/4/java/ChangeModeForVehicleProperty.java
+++ b/automotive/vehicle/aidl/generated_lib/4/java/ChangeModeForVehicleProperty.java
@@ -69,6 +69,7 @@
         Map.entry(VehicleProperty.CRITICALLY_LOW_TIRE_PRESSURE, VehiclePropertyChangeMode.STATIC),
         Map.entry(VehicleProperty.ENGINE_IDLE_AUTO_STOP_ENABLED, VehiclePropertyChangeMode.ON_CHANGE),
         Map.entry(VehicleProperty.IMPACT_DETECTED, VehiclePropertyChangeMode.ON_CHANGE),
+        Map.entry(VehicleProperty.VEHICLE_HORN_ENGAGED, VehiclePropertyChangeMode.ON_CHANGE),
         Map.entry(VehicleProperty.GEAR_SELECTION, VehiclePropertyChangeMode.ON_CHANGE),
         Map.entry(VehicleProperty.CURRENT_GEAR, VehiclePropertyChangeMode.ON_CHANGE),
         Map.entry(VehicleProperty.PARKING_BRAKE_ON, VehiclePropertyChangeMode.ON_CHANGE),
diff --git a/automotive/vehicle/aidl/impl/current/default_config/config/DefaultProperties.json b/automotive/vehicle/aidl/impl/current/default_config/config/DefaultProperties.json
index b7d3f7d..969727e 100644
--- a/automotive/vehicle/aidl/impl/current/default_config/config/DefaultProperties.json
+++ b/automotive/vehicle/aidl/impl/current/default_config/config/DefaultProperties.json
@@ -2637,6 +2637,14 @@
             ]
         },
         {
+            "property": "VehicleProperty::VEHICLE_HORN_ENGAGED",
+            "defaultValue": {
+                "int32Values": [
+                    0
+                ]
+            }
+        },
+        {
             "property": "VehicleProperty::DOOR_LOCK",
             "areas": [
                 {
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 3bc7a08..06ba356 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
@@ -75,6 +75,7 @@
   CRITICALLY_LOW_TIRE_PRESSURE = (((0x030A + 0x10000000) + 0x07000000) + 0x00600000) /* 392168202 */,
   ENGINE_IDLE_AUTO_STOP_ENABLED = (((0x0320 + android.hardware.automotive.vehicle.VehiclePropertyGroup.SYSTEM) + android.hardware.automotive.vehicle.VehicleArea.GLOBAL) + android.hardware.automotive.vehicle.VehiclePropertyType.BOOLEAN) /* 287310624 */,
   IMPACT_DETECTED = (((0x0330 + android.hardware.automotive.vehicle.VehiclePropertyGroup.SYSTEM) + android.hardware.automotive.vehicle.VehicleArea.GLOBAL) + android.hardware.automotive.vehicle.VehiclePropertyType.INT32) /* 289407792 */,
+  VEHICLE_HORN_ENGAGED = (((0x0340 + android.hardware.automotive.vehicle.VehiclePropertyGroup.SYSTEM) + android.hardware.automotive.vehicle.VehicleArea.GLOBAL) + android.hardware.automotive.vehicle.VehiclePropertyType.BOOLEAN) /* 287310656 */,
   GEAR_SELECTION = (((0x0400 + 0x10000000) + 0x01000000) + 0x00400000) /* 289408000 */,
   CURRENT_GEAR = (((0x0401 + 0x10000000) + 0x01000000) + 0x00400000) /* 289408001 */,
   PARKING_BRAKE_ON = (((0x0402 + 0x10000000) + 0x01000000) + 0x00200000) /* 287310850 */,
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 7206ae1..ec41914 100644
--- a/automotive/vehicle/aidl_property/android/hardware/automotive/vehicle/VehicleProperty.aidl
+++ b/automotive/vehicle/aidl_property/android/hardware/automotive/vehicle/VehicleProperty.aidl
@@ -687,6 +687,19 @@
     IMPACT_DETECTED =
             0x0330 + VehiclePropertyGroup.SYSTEM + VehicleArea.GLOBAL + VehiclePropertyType.INT32,
     /**
+     * Vehicle horn engaged.
+     *
+     * This property must communicate if the vehicle's horn is currently engaged or not. If true,
+     * the horn is engaged. If false, the horn is disengaged.
+     *
+     * @change_mode VehiclePropertyChangeMode.ON_CHANGE
+     * @access VehiclePropertyAccess.READ_WRITE
+     * @access VehiclePropertyAccess.READ
+     * @version 4
+     */
+    VEHICLE_HORN_ENGAGED =
+            0x0340 + VehiclePropertyGroup.SYSTEM + VehicleArea.GLOBAL + VehiclePropertyType.BOOLEAN,
+    /**
      * Currently selected gear
      *
      * This is the gear selected by the user.
diff --git a/automotive/vehicle/vts/src/VtsHalAutomotiveVehicle_TargetTest.cpp b/automotive/vehicle/vts/src/VtsHalAutomotiveVehicle_TargetTest.cpp
index 6643ca5..bf73b55 100644
--- a/automotive/vehicle/vts/src/VtsHalAutomotiveVehicle_TargetTest.cpp
+++ b/automotive/vehicle/vts/src/VtsHalAutomotiveVehicle_TargetTest.cpp
@@ -1412,6 +1412,12 @@
                    VehicleArea::GLOBAL, VehiclePropertyType::FLOAT);
 }
 
+TEST_P(VtsHalAutomotiveVehicleTargetTest, verifyVehicleHornEngagedConfig) {
+    verifyProperty(VehicleProperty::VEHICLE_HORN_ENGAGED, VehiclePropertyAccess::READ_WRITE,
+                   VehiclePropertyChangeMode::ON_CHANGE, VehiclePropertyGroup::SYSTEM,
+                   VehicleArea::GLOBAL, VehiclePropertyType::BOOLEAN);
+}
+
 bool VtsHalAutomotiveVehicleTargetTest::checkIsSupported(int32_t propertyId) {
     auto result = mVhalClient->getPropConfigs({propertyId});
     return result.ok();