diff --git a/automotive/vehicle/2.0/default/impl/vhal_v2_0/DefaultConfig.h b/automotive/vehicle/2.0/default/impl/vhal_v2_0/DefaultConfig.h
index 7938b73..c1c511f 100644
--- a/automotive/vehicle/2.0/default/impl/vhal_v2_0/DefaultConfig.h
+++ b/automotive/vehicle/2.0/default/impl/vhal_v2_0/DefaultConfig.h
@@ -30,6 +30,7 @@
 //
 // Some handy constants to avoid conversions from enum to int.
 constexpr int ABS_ACTIVE = (int)VehicleProperty::ABS_ACTIVE;
+constexpr int AP_POWER_STATE = (int)VehicleProperty::AP_POWER_STATE;
 constexpr int OBD2_LIVE_FRAME = (int)VehicleProperty::OBD2_LIVE_FRAME;
 constexpr int OBD2_FREEZE_FRAME = (int)VehicleProperty::OBD2_FREEZE_FRAME;
 constexpr int OBD2_FREEZE_FRAME_INFO = (int)VehicleProperty::OBD2_FREEZE_FRAME_INFO;
@@ -342,12 +343,6 @@
          },
      .initialValue = {.int32Values = {toInt(VehicleGear::GEAR_PARK)}}},
 
-    {.config = {.prop = toInt(VehicleProperty::DISPLAY_BRIGHTNESS),
-                .access = VehiclePropertyAccess::READ_WRITE,
-                .changeMode = VehiclePropertyChangeMode::ON_CHANGE,
-                .areaConfigs = {VehicleAreaConfig{.minInt32Value = 0, .maxInt32Value = 10}}},
-     .initialValue = {.int32Values = {7}}},
-
     {.config =
          {
              .prop = toInt(VehicleProperty::IGNITION_STATE),
@@ -420,6 +415,23 @@
             },
     },
 
+    {.config = {.prop = toInt(VehicleProperty::AP_POWER_STATE),
+                .access = VehiclePropertyAccess::READ_WRITE,
+                .changeMode = VehiclePropertyChangeMode::ON_CHANGE,
+                .configArray = {3}},
+     .initialValue = {.int32Values = {toInt(VehicleApPowerState::ON_FULL), 0}}},
+
+    {.config = {.prop = toInt(VehicleProperty::DISPLAY_BRIGHTNESS),
+                .access = VehiclePropertyAccess::READ_WRITE,
+                .changeMode = VehiclePropertyChangeMode::ON_CHANGE,
+                .areaConfigs = {VehicleAreaConfig{.minInt32Value = 0, .maxInt32Value = 100}}},
+     .initialValue = {.int32Values = {100}}},
+
+    {.config = {.prop = toInt(VehicleProperty::AP_POWER_BOOTUP_REASON),
+                .access = VehiclePropertyAccess::READ,
+                .changeMode = VehiclePropertyChangeMode::ON_CHANGE},
+     .initialValue = {.int32Values = {toInt(VehicleApPowerBootupReason::USER_POWER_ON)}}},
+
     {
         .config = {.prop = OBD2_LIVE_FRAME,
                    .access = VehiclePropertyAccess::READ,
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 5118b18..764bebd 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
@@ -146,12 +146,23 @@
                 && hvacPowerOn->value.int32Values[0] == 0) {
             return StatusCode::NOT_AVAILABLE;
         }
-    } else if (propValue.prop == OBD2_FREEZE_FRAME_CLEAR) {
-        return clearObd2FreezeFrames(propValue);
-    } else if (propValue.prop == VEHICLE_MAP_SERVICE) {
-        // Placeholder for future implementation of VMS property in the default hal. For now, just
-        // returns OK; otherwise, hal clients crash with property not supported.
-        return StatusCode::OK;
+    } else {
+        // Handle property specific code
+        switch (propValue.prop) {
+            case OBD2_FREEZE_FRAME_CLEAR:
+                return clearObd2FreezeFrames(propValue);
+            case VEHICLE_MAP_SERVICE:
+                // Placeholder for future implementation of VMS property in the default hal. For
+                // now, just returns OK; otherwise, hal clients crash with property not supported.
+                return StatusCode::OK;
+            case AP_POWER_STATE:
+                // This property has different behavior between get/set.  When it is set, the value
+                //  goes to the vehicle but is NOT updated in the property store back to Android.
+                // Commented out for now, because it may mess up automated testing that use the
+                //  emulator interface.
+                // getEmulatorOrDie()->doSetValueFromClient(propValue);
+                return StatusCode::OK;
+        }
     }
 
     if (!mPropStore->writeValue(propValue)) {