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 bf45a19..4020a9e 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
@@ -279,7 +279,7 @@
                     "VehicleTurnSignal"
                 ],
                 "data_enum": "VehicleTurnSignal",
-                "description": "State of the vehicles turn signals"
+                "description": "(Deprecated) State of the vehicles turn signals\nThis property has been deprecated as it ambiguously defines the state of the vehicle turn signals without making clear if it means the state of the turn signal lights or the state of the turn signal switch. The introduction of TURN_SIGNAL_LIGHT_STATE and TURN_SIGNAL_SWITCH rectifies this problem."
             },
             {
                 "name": "Represents ignition state",
@@ -325,6 +325,24 @@
                 "description": "Electronic Stability Control (ESC) state.\nReturns the current state of ESC. This property must always return a valid state defined in ElectronicStabilityControlState or ErrorState. It must not surface errors through StatusCode and must use the supported error states instead.\nFor the global area ID (0), {@code getSupportedValuesList} must return a {@code SupportedValuesListResult} that contains supported values unless all states of both ElectronicStabilityControlState (including OTHER, which is not recommended) and ErrorState are supported.\nFor backward compatibility, if {@code SupportedValuesListResult} is defined, {@code VehicleAreaConfig#supportedEnumValues} must be set to the same values."
             },
             {
+                "name": "Turn signal light state.",
+                "value": 289408016,
+                "data_enums": [
+                    "VehicleTurnSignal"
+                ],
+                "data_enum": "VehicleTurnSignal",
+                "description": "Turn signal light state.\nThis property must communicate the actual state of the turn signal lights.\nExamples: 1) Left turn signal light is currently pulsing, right turn signal light is currently off. This property must return VehicleTurnSignal.LEFT while the light is on during the pulse, and VehicleTurnSignal.NONE when it is off during the pulse. 2) Right turn signal light is currently pulsing, left turn signal light is currently off. This property must return VehicleTurnSignal.RIGHT while the light is on during the pulse, and VehicleTurnSignal.NONE when it is off during the pulse. 3) Both turn signal lights are currently pulsing (e.g. when hazard lights switch is on). This property must return VehicleTurnSignal.LEFT | VehicleTurnSignal.RIGHT while the lights are on during the pulse, and VehicleTurnSignal.NONE when they are off during the pulse.\nNote that this property uses VehicleTurnSignal as a bit flag, unlike TURN_SIGNAL_SWITCH, which uses it like a regular enum. This means this property can support ORed together values in VehicleTurnSignal.\nThis is different from the function of TURN_SIGNAL_SWITCH, which must communicate the state of the turn signal lever\/switch.\nThis property is a replacement to the TURN_SIGNAL_STATE property, which is now deprecated."
+            },
+            {
+                "name": "Turn signal switch.",
+                "value": 289408017,
+                "data_enums": [
+                    "VehicleTurnSignal"
+                ],
+                "data_enum": "VehicleTurnSignal",
+                "description": "Turn signal switch.\nThis property must communicate the state of the turn signal lever\/switch. This is different from the function of TURN_SIGNAL_LIGHT_STATE, which must communicate the actual state of the turn signal lights.\nNote that this property uses VehicleTurnSignal as a regular enum, unlike TURN_SIGNAL_LIGHT_STATE, which uses it like a bit flag. This means this property cannot support ORed together values in VehicleTurnSignal.\nThis property is defined as VehiclePropertyAccess.READ_WRITE, but OEMs have the option to implement it as VehiclePropertyAccess.READ only."
+            },
+            {
                 "name": "Fan speed setting",
                 "value": 356517120,
                 "description": "Fan speed setting\nThe maxInt32Value and minInt32Value in VehicleAreaConfig must be defined. All integers between minInt32Value and maxInt32Value must be supported.\nThe minInt32Value indicates the lowest fan speed. The maxInt32Value indicates the highest fan speed.\nThis property is not in any particular unit but in a specified range of relative speeds.\nThis property is defined as VehiclePropertyAccess.READ_WRITE, but OEMs have the option to implement it as VehiclePropertyAccess.READ only."
diff --git a/automotive/vehicle/aidl/generated_lib/4/cpp/AccessForVehicleProperty.h b/automotive/vehicle/aidl/generated_lib/4/cpp/AccessForVehicleProperty.h
index c394fec..8d4155c 100644
--- a/automotive/vehicle/aidl/generated_lib/4/cpp/AccessForVehicleProperty.h
+++ b/automotive/vehicle/aidl/generated_lib/4/cpp/AccessForVehicleProperty.h
@@ -88,6 +88,8 @@
         {VehicleProperty::EV_STOPPING_MODE, VehiclePropertyAccess::READ_WRITE},
         {VehicleProperty::ELECTRONIC_STABILITY_CONTROL_ENABLED, VehiclePropertyAccess::READ_WRITE},
         {VehicleProperty::ELECTRONIC_STABILITY_CONTROL_STATE, VehiclePropertyAccess::READ},
+        {VehicleProperty::TURN_SIGNAL_LIGHT_STATE, VehiclePropertyAccess::READ},
+        {VehicleProperty::TURN_SIGNAL_SWITCH, VehiclePropertyAccess::READ_WRITE},
         {VehicleProperty::HVAC_FAN_SPEED, VehiclePropertyAccess::READ_WRITE},
         {VehicleProperty::HVAC_FAN_DIRECTION, VehiclePropertyAccess::READ_WRITE},
         {VehicleProperty::HVAC_TEMPERATURE_CURRENT, 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 86052f2..33d7d8e 100644
--- a/automotive/vehicle/aidl/generated_lib/4/cpp/ChangeModeForVehicleProperty.h
+++ b/automotive/vehicle/aidl/generated_lib/4/cpp/ChangeModeForVehicleProperty.h
@@ -88,6 +88,8 @@
         {VehicleProperty::EV_STOPPING_MODE, VehiclePropertyChangeMode::ON_CHANGE},
         {VehicleProperty::ELECTRONIC_STABILITY_CONTROL_ENABLED, VehiclePropertyChangeMode::ON_CHANGE},
         {VehicleProperty::ELECTRONIC_STABILITY_CONTROL_STATE, VehiclePropertyChangeMode::ON_CHANGE},
+        {VehicleProperty::TURN_SIGNAL_LIGHT_STATE, VehiclePropertyChangeMode::ON_CHANGE},
+        {VehicleProperty::TURN_SIGNAL_SWITCH, VehiclePropertyChangeMode::ON_CHANGE},
         {VehicleProperty::HVAC_FAN_SPEED, VehiclePropertyChangeMode::ON_CHANGE},
         {VehicleProperty::HVAC_FAN_DIRECTION, VehiclePropertyChangeMode::ON_CHANGE},
         {VehicleProperty::HVAC_TEMPERATURE_CURRENT, 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 cfe31ee..c07baa2 100644
--- a/automotive/vehicle/aidl/generated_lib/4/cpp/VersionForVehicleProperty.h
+++ b/automotive/vehicle/aidl/generated_lib/4/cpp/VersionForVehicleProperty.h
@@ -87,6 +87,8 @@
         {VehicleProperty::EV_STOPPING_MODE, 2},
         {VehicleProperty::ELECTRONIC_STABILITY_CONTROL_ENABLED, 3},
         {VehicleProperty::ELECTRONIC_STABILITY_CONTROL_STATE, 3},
+        {VehicleProperty::TURN_SIGNAL_LIGHT_STATE, 4},
+        {VehicleProperty::TURN_SIGNAL_SWITCH, 4},
         {VehicleProperty::HVAC_FAN_SPEED, 2},
         {VehicleProperty::HVAC_FAN_DIRECTION, 2},
         {VehicleProperty::HVAC_TEMPERATURE_CURRENT, 2},
diff --git a/automotive/vehicle/aidl/generated_lib/4/java/AccessForVehicleProperty.java b/automotive/vehicle/aidl/generated_lib/4/java/AccessForVehicleProperty.java
index e66c4e4..7b4c4d1 100644
--- a/automotive/vehicle/aidl/generated_lib/4/java/AccessForVehicleProperty.java
+++ b/automotive/vehicle/aidl/generated_lib/4/java/AccessForVehicleProperty.java
@@ -81,6 +81,8 @@
         Map.entry(VehicleProperty.EV_STOPPING_MODE, VehiclePropertyAccess.READ_WRITE),
         Map.entry(VehicleProperty.ELECTRONIC_STABILITY_CONTROL_ENABLED, VehiclePropertyAccess.READ_WRITE),
         Map.entry(VehicleProperty.ELECTRONIC_STABILITY_CONTROL_STATE, VehiclePropertyAccess.READ),
+        Map.entry(VehicleProperty.TURN_SIGNAL_LIGHT_STATE, VehiclePropertyAccess.READ),
+        Map.entry(VehicleProperty.TURN_SIGNAL_SWITCH, VehiclePropertyAccess.READ_WRITE),
         Map.entry(VehicleProperty.HVAC_FAN_SPEED, VehiclePropertyAccess.READ_WRITE),
         Map.entry(VehicleProperty.HVAC_FAN_DIRECTION, VehiclePropertyAccess.READ_WRITE),
         Map.entry(VehicleProperty.HVAC_TEMPERATURE_CURRENT, 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 e3948fb..3e25fa3 100644
--- a/automotive/vehicle/aidl/generated_lib/4/java/ChangeModeForVehicleProperty.java
+++ b/automotive/vehicle/aidl/generated_lib/4/java/ChangeModeForVehicleProperty.java
@@ -81,6 +81,8 @@
         Map.entry(VehicleProperty.EV_STOPPING_MODE, VehiclePropertyChangeMode.ON_CHANGE),
         Map.entry(VehicleProperty.ELECTRONIC_STABILITY_CONTROL_ENABLED, VehiclePropertyChangeMode.ON_CHANGE),
         Map.entry(VehicleProperty.ELECTRONIC_STABILITY_CONTROL_STATE, VehiclePropertyChangeMode.ON_CHANGE),
+        Map.entry(VehicleProperty.TURN_SIGNAL_LIGHT_STATE, VehiclePropertyChangeMode.ON_CHANGE),
+        Map.entry(VehicleProperty.TURN_SIGNAL_SWITCH, VehiclePropertyChangeMode.ON_CHANGE),
         Map.entry(VehicleProperty.HVAC_FAN_SPEED, VehiclePropertyChangeMode.ON_CHANGE),
         Map.entry(VehicleProperty.HVAC_FAN_DIRECTION, VehiclePropertyChangeMode.ON_CHANGE),
         Map.entry(VehicleProperty.HVAC_TEMPERATURE_CURRENT, VehiclePropertyChangeMode.ON_CHANGE),
diff --git a/automotive/vehicle/aidl/generated_lib/4/java/EnumForVehicleProperty.java b/automotive/vehicle/aidl/generated_lib/4/java/EnumForVehicleProperty.java
index 25afc09..1661c0b 100644
--- a/automotive/vehicle/aidl/generated_lib/4/java/EnumForVehicleProperty.java
+++ b/automotive/vehicle/aidl/generated_lib/4/java/EnumForVehicleProperty.java
@@ -45,6 +45,8 @@
         Map.entry(VehicleProperty.IGNITION_STATE, List.of(VehicleIgnitionState.class)),
         Map.entry(VehicleProperty.EV_STOPPING_MODE, List.of(EvStoppingMode.class)),
         Map.entry(VehicleProperty.ELECTRONIC_STABILITY_CONTROL_STATE, List.of(ElectronicStabilityControlState.class, ErrorState.class)),
+        Map.entry(VehicleProperty.TURN_SIGNAL_LIGHT_STATE, List.of(VehicleTurnSignal.class)),
+        Map.entry(VehicleProperty.TURN_SIGNAL_SWITCH, List.of(VehicleTurnSignal.class)),
         Map.entry(VehicleProperty.HVAC_FAN_DIRECTION, List.of(VehicleHvacFanDirection.class)),
         Map.entry(VehicleProperty.HVAC_TEMPERATURE_DISPLAY_UNITS, List.of(VehicleUnit.class)),
         Map.entry(VehicleProperty.HVAC_FAN_DIRECTION_AVAILABLE, List.of(VehicleHvacFanDirection.class)),
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 1b3ae7a..739d689 100644
--- a/automotive/vehicle/aidl/impl/current/default_config/config/DefaultProperties.json
+++ b/automotive/vehicle/aidl/impl/current/default_config/config/DefaultProperties.json
@@ -2536,7 +2536,15 @@
             ]
         },
         {
-            "property": "VehicleProperty::TURN_SIGNAL_STATE",
+            "property": "VehicleProperty::TURN_SIGNAL_LIGHT_STATE",
+            "defaultValue": {
+                "int32Values": [
+                    "VehicleTurnSignal::NONE"
+                ]
+            }
+        },
+        {
+            "property": "VehicleProperty::TURN_SIGNAL_SWITCH",
             "defaultValue": {
                 "int32Values": [
                     "VehicleTurnSignal::NONE"
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 9262f32..69a194a 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
@@ -87,6 +87,8 @@
   EV_STOPPING_MODE = (((0x040D + android.hardware.automotive.vehicle.VehiclePropertyGroup.SYSTEM) + android.hardware.automotive.vehicle.VehicleArea.GLOBAL) + android.hardware.automotive.vehicle.VehiclePropertyType.INT32) /* 289408013 */,
   ELECTRONIC_STABILITY_CONTROL_ENABLED = (((0x040E + android.hardware.automotive.vehicle.VehiclePropertyGroup.SYSTEM) + android.hardware.automotive.vehicle.VehicleArea.GLOBAL) + android.hardware.automotive.vehicle.VehiclePropertyType.BOOLEAN) /* 287310862 */,
   ELECTRONIC_STABILITY_CONTROL_STATE = (((0x040F + android.hardware.automotive.vehicle.VehiclePropertyGroup.SYSTEM) + android.hardware.automotive.vehicle.VehicleArea.GLOBAL) + android.hardware.automotive.vehicle.VehiclePropertyType.INT32) /* 289408015 */,
+  TURN_SIGNAL_LIGHT_STATE = (((0x0410 + android.hardware.automotive.vehicle.VehiclePropertyGroup.SYSTEM) + android.hardware.automotive.vehicle.VehicleArea.GLOBAL) + android.hardware.automotive.vehicle.VehiclePropertyType.INT32) /* 289408016 */,
+  TURN_SIGNAL_SWITCH = (((0x0411 + android.hardware.automotive.vehicle.VehiclePropertyGroup.SYSTEM) + android.hardware.automotive.vehicle.VehicleArea.GLOBAL) + android.hardware.automotive.vehicle.VehiclePropertyType.INT32) /* 289408017 */,
   HVAC_FAN_SPEED = (((0x0500 + 0x10000000) + 0x05000000) + 0x00400000) /* 356517120 */,
   HVAC_FAN_DIRECTION = (((0x0501 + 0x10000000) + 0x05000000) + 0x00400000) /* 356517121 */,
   HVAC_TEMPERATURE_CURRENT = (((0x0502 + 0x10000000) + 0x05000000) + 0x00600000) /* 358614274 */,
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 c9b9707..0b56fde 100644
--- a/automotive/vehicle/aidl_property/android/hardware/automotive/vehicle/VehicleProperty.aidl
+++ b/automotive/vehicle/aidl_property/android/hardware/automotive/vehicle/VehicleProperty.aidl
@@ -812,7 +812,12 @@
     NIGHT_MODE = 0x0407 + 0x10000000 + 0x01000000
             + 0x00200000, // VehiclePropertyGroup:SYSTEM,VehicleArea:GLOBAL,VehiclePropertyType:BOOLEAN
     /**
-     * State of the vehicles turn signals
+     * (Deprecated) State of the vehicles turn signals
+     *
+     * This property has been deprecated as it ambiguously defines the state of the vehicle turn
+     * signals without making clear if it means the state of the turn signal lights or the state of
+     * the turn signal switch. The introduction of TURN_SIGNAL_LIGHT_STATE and TURN_SIGNAL_SWITCH
+     * rectifies this problem.
      *
      * @change_mode VehiclePropertyChangeMode.ON_CHANGE
      * @access VehiclePropertyAccess.READ
@@ -926,6 +931,60 @@
     ELECTRONIC_STABILITY_CONTROL_STATE =
             0x040F + VehiclePropertyGroup.SYSTEM + VehicleArea.GLOBAL + VehiclePropertyType.INT32,
     /**
+     * Turn signal light state.
+     *
+     * This property must communicate the actual state of the turn signal lights.
+     *
+     * Examples:
+     *   1) Left turn signal light is currently pulsing, right turn signal light is currently off.
+     *   This property must return VehicleTurnSignal.LEFT while the light is on during the pulse,
+     *   and VehicleTurnSignal.NONE when it is off during the pulse.
+     *   2) Right turn signal light is currently pulsing, left turn signal light is currently off.
+     *   This property must return VehicleTurnSignal.RIGHT while the light is on during the pulse,
+     *   and VehicleTurnSignal.NONE when it is off during the pulse.
+     *   3) Both turn signal lights are currently pulsing (e.g. when hazard lights switch is on).
+     *   This property must return VehicleTurnSignal.LEFT | VehicleTurnSignal.RIGHT while the lights
+     *   are on during the pulse, and VehicleTurnSignal.NONE when they are off during the pulse.
+     *
+     * Note that this property uses VehicleTurnSignal as a bit flag, unlike TURN_SIGNAL_SWITCH,
+     * which uses it like a regular enum. This means this property can support ORed together values
+     * in VehicleTurnSignal.
+     *
+     * This is different from the function of TURN_SIGNAL_SWITCH, which must communicate the state
+     * of the turn signal lever/switch.
+     *
+     * This property is a replacement to the TURN_SIGNAL_STATE property, which is now deprecated.
+     *
+     * @change_mode VehiclePropertyChangeMode.ON_CHANGE
+     * @access VehiclePropertyAccess.READ
+     * @data_enum VehicleTurnSignal
+     * @version 4
+     */
+    TURN_SIGNAL_LIGHT_STATE =
+            0x0410 + VehiclePropertyGroup.SYSTEM + VehicleArea.GLOBAL + VehiclePropertyType.INT32,
+    /**
+     * Turn signal switch.
+     *
+     * This property must communicate the state of the turn signal lever/switch. This is different
+     * from the function of TURN_SIGNAL_LIGHT_STATE, which must communicate the actual state of the
+     * turn signal lights.
+     *
+     * Note that this property uses VehicleTurnSignal as a regular enum, unlike
+     * TURN_SIGNAL_LIGHT_STATE, which uses it like a bit flag. This means this property cannot
+     * support ORed together values in VehicleTurnSignal.
+     *
+     * This property is defined as VehiclePropertyAccess.READ_WRITE, but OEMs have the option to
+     * implement it as VehiclePropertyAccess.READ only.
+     *
+     * @change_mode VehiclePropertyChangeMode.ON_CHANGE
+     * @access VehiclePropertyAccess.READ_WRITE
+     * @access VehiclePropertyAccess.READ
+     * @data_enum VehicleTurnSignal
+     * @version 4
+     */
+    TURN_SIGNAL_SWITCH =
+            0x0411 + VehiclePropertyGroup.SYSTEM + VehicleArea.GLOBAL + VehiclePropertyType.INT32,
+    /**
      * HVAC Properties
      *
      * Additional rules for mapping non-GLOBAL VehicleArea type HVAC properties
diff --git a/automotive/vehicle/vts/src/VtsHalAutomotiveVehicle_TargetTest.cpp b/automotive/vehicle/vts/src/VtsHalAutomotiveVehicle_TargetTest.cpp
index 067c030..2045a5a 100644
--- a/automotive/vehicle/vts/src/VtsHalAutomotiveVehicle_TargetTest.cpp
+++ b/automotive/vehicle/vts/src/VtsHalAutomotiveVehicle_TargetTest.cpp
@@ -1388,6 +1388,18 @@
                    VehicleArea::GLOBAL, VehiclePropertyType::INT32_VEC);
 }
 
+TEST_P(VtsHalAutomotiveVehicleTargetTest, verifyTurnSignalLightStateConfig) {
+    verifyProperty(VehicleProperty::TURN_SIGNAL_LIGHT_STATE, VehiclePropertyAccess::READ,
+                   VehiclePropertyChangeMode::ON_CHANGE, VehiclePropertyGroup::SYSTEM,
+                   VehicleArea::GLOBAL, VehiclePropertyType::INT32);
+}
+
+TEST_P(VtsHalAutomotiveVehicleTargetTest, verifyTurnSignalSwitchConfig) {
+    verifyProperty(VehicleProperty::TURN_SIGNAL_SWITCH, VehiclePropertyAccess::READ_WRITE,
+                   VehiclePropertyChangeMode::ON_CHANGE, VehiclePropertyGroup::SYSTEM,
+                   VehicleArea::GLOBAL, VehiclePropertyType::INT32);
+}
+
 bool VtsHalAutomotiveVehicleTargetTest::checkIsSupported(int32_t propertyId) {
     auto result = mVhalClient->getPropConfigs({propertyId});
     return result.ok();