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 735f8e6..958ba46 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
@@ -67,7 +67,7 @@
                     "PortLocationType"
                 ],
                 "data_enum": "PortLocationType",
-                "description": "EV port location"
+                "description": "EV port location\nThis property must communicate the location of the charging port on the EV using the PortLocationType enum. If there are multiple ports available on the vehicle, this property must return the port that allows the fastest charging. To communicate all port locations, use INFO_MULTI_EV_PORT_LOCATIONS."
             },
             {
                 "name": "INFO_DRIVER_SEAT",
@@ -90,7 +90,7 @@
                     "PortLocationType"
                 ],
                 "data_enum": "PortLocationType",
-                "description": "Multiple EV port locations\nImplement this property if the vehicle has multiple EV ports. Port locations are defined in PortLocationType. For example, a car has one port in front left and one port in rear left: int32Values[0] = PortLocationType::FRONT_LEFT int32Values[0] = PortLocationType::REAR_LEFT"
+                "description": "Multiple EV port locations\nImplement this property if the vehicle has multiple EV ports. Port locations are defined in PortLocationType. For example, a car has one port in front left and one port in rear left: int32Values[0] = PortLocationType::FRONT_LEFT int32Values[1] = PortLocationType::REAR_LEFT\nIf only one port exists on the vehicle, this property's value should list just one element. See INFO_EV_PORT_LOCATION for describing just one port location."
             },
             {
                 "name": "PERF_ODOMETER",
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 099323c..cf174ee 100644
--- a/automotive/vehicle/aidl_property/android/hardware/automotive/vehicle/VehicleProperty.aidl
+++ b/automotive/vehicle/aidl_property/android/hardware/automotive/vehicle/VehicleProperty.aidl
@@ -163,6 +163,11 @@
     /**
      * EV port location
      *
+     * This property must communicate the location of the charging port on the EV using the
+     * PortLocationType enum. If there are multiple ports available on the vehicle, this property
+     * must return the port that allows the fastest charging. To communicate all port locations,
+     * use INFO_MULTI_EV_PORT_LOCATIONS.
+     *
      * @change_mode VehiclePropertyChangeMode.STATIC
      * @access VehiclePropertyAccess.READ
      * @data_enum PortLocationType
@@ -207,7 +212,10 @@
      * Port locations are defined in PortLocationType.
      * For example, a car has one port in front left and one port in rear left:
      *   int32Values[0] = PortLocationType::FRONT_LEFT
-     *   int32Values[0] = PortLocationType::REAR_LEFT
+     *   int32Values[1] = PortLocationType::REAR_LEFT
+     *
+     * If only one port exists on the vehicle, this property's value should list just one element.
+     * See INFO_EV_PORT_LOCATION for describing just one port location.
      *
      * @change_mode VehiclePropertyChangeMode.STATIC
      * @access VehiclePropertyAccess.READ