Index: dialin/dg/hd_proxy.py
===================================================================
diff -u -r92ba68da956156e22596a1dec25bebde27beb60a -r7c24cff28bfdc1cc675d6a408cb3b96a019fd2c0
--- dialin/dg/hd_proxy.py	(.../hd_proxy.py)	(revision 92ba68da956156e22596a1dec25bebde27beb60a)
+++ dialin/dg/hd_proxy.py	(.../hd_proxy.py)	(revision 7c24cff28bfdc1cc675d6a408cb3b96a019fd2c0)
@@ -18,7 +18,7 @@
 from ..common.msg_defs import MsgIds
 from ..protocols.CAN import DenaliMessage, DenaliChannels
 from ..utils.base import AbstractSubSystem
-from ..utils.conversions import integer_to_bytearray, float_to_bytearray
+from ..utils.conversions import integer_to_bytearray, float_to_bytearray, byte_to_bytearray
 from ..dg import NO_RESET, RESET
 
 
@@ -545,3 +545,22 @@
         else:
             self.logger.debug("Timeout!!!!")
             return False
+
+    def cmd_send_hd_power_off_response(self, usr_response: int ) -> None:
+        """
+        Constructs and sends HD user response to power off request to the UI.
+
+        OFF_BUTTON_RSP_USER_REQUESTS_POWER_OFF = 0, ///< User requests power off response
+        OFF_BUTTON_RSP_USER_CONFIRMS_POWER_OFF = 1, ///< User confirms power off response
+        OFF_BUTTON_RSP_USER_REJECTS_POWER_OFF  = 2, ///< User rejects power off response
+        NUM_OF_OFF_BUTTON_RSPS                      ///< Number of off button responses from UI
+
+        @param usr_response: (int)  - user response defined in enum
+        @return: none
+        """
+        payload = byte_to_bytearray(usr_response)
+        message = DenaliMessage.build_message(channel_id=DenaliChannels.hd_to_ui_ch_id,
+                                              message_id=MsgIds.MSG_ID_OFF_BUTTON_PRESS_REQUEST.value,
+                                              payload=payload)
+        # No ACK required
+        self.can_interface.send(message, 0)