diff --git a/radio/aidl/android/hardware/radio/data/IRadioData.aidl b/radio/aidl/android/hardware/radio/data/IRadioData.aidl
index e1ba56828f..724b515945 100644
--- a/radio/aidl/android/hardware/radio/data/IRadioData.aidl
+++ b/radio/aidl/android/hardware/radio/data/IRadioData.aidl
@@ -65,6 +65,7 @@ oneway interface IRadioData {
     /**
      * Deactivate packet data connection and remove from the data call list. An
      * unsolDataCallListChanged() must be sent when data connection is deactivated.
+     * A return value of RadioError::RADIO_NOT_AVAILABLE will remove the network from the list.
      *
      * @param serial Serial number of request.
      * @param cid Data call id.
@@ -76,8 +77,7 @@ oneway interface IRadioData {
 
     /**
      * Returns the data call list. An entry is added when a setupDataCall() is issued and removed
-     * on a deactivateDataCall(). The list is emptied when setRadioPower()  off/on issued or when
-     * the vendor HAL or modem crashes.
+     * on a deactivateDataCall(). The list is emptied when the vendor HAL crashes.
      *
      * @param serial Serial number of request.
      *
diff --git a/radio/aidl/android/hardware/radio/data/IRadioDataResponse.aidl b/radio/aidl/android/hardware/radio/data/IRadioDataResponse.aidl
index bbc8d07b0a..1cb8ff3fd5 100644
--- a/radio/aidl/android/hardware/radio/data/IRadioDataResponse.aidl
+++ b/radio/aidl/android/hardware/radio/data/IRadioDataResponse.aidl
@@ -68,7 +68,7 @@ oneway interface IRadioDataResponse {
      * Valid errors returned:
      *   RadioError:REQUEST_NOT_SUPPORTED may be returned when HAL 1.2 or higher is supported.
      *   RadioError:NONE
-     *   RadioError:RADIO_NOT_AVAILABLE
+     *   RadioError:RADIO_NOT_AVAILABLE will remove the network from the list.
      *   RadioError:INVALID_CALL_ID
      *   RadioError:INVALID_STATE
      *   RadioError:INVALID_ARGUMENTS