Index: firmware/App/Modes/ModeTreatment.c
===================================================================
diff -u -r49533d4870aa10c1b20406dd5c013567fe854694 -r23ceb0a80986f0d4e61ba366e6d9691e57c4b08b
--- firmware/App/Modes/ModeTreatment.c	(.../ModeTreatment.c)	(revision 49533d4870aa10c1b20406dd5c013567fe854694)
+++ firmware/App/Modes/ModeTreatment.c	(.../ModeTreatment.c)	(revision 23ceb0a80986f0d4e61ba366e6d9691e57c4b08b)
@@ -706,6 +706,8 @@
 
     transitionToBloodPrime();
 
+    // TODO DMC Save Last Treatment Time
+
     return result;
 }
 
Index: firmware/App/Services/AlarmMgmt.c
===================================================================
diff -u -r22cab5beebd48faf29e78c5003b0bdd0a32748e8 -r23ceb0a80986f0d4e61ba366e6d9691e57c4b08b
--- firmware/App/Services/AlarmMgmt.c	(.../AlarmMgmt.c)	(revision 22cab5beebd48faf29e78c5003b0bdd0a32748e8)
+++ firmware/App/Services/AlarmMgmt.c	(.../AlarmMgmt.c)	(revision 23ceb0a80986f0d4e61ba366e6d9691e57c4b08b)
@@ -198,7 +198,8 @@
     alarmStatus.noClear = FALSE;
     alarmStatus.noResume = FALSE;
     alarmStatus.noRinseback = FALSE;
-    alarmStatus.noEndTreatment = FALSE;
+    alarmStatus.noEndTreatment = FALSE;
+    alarmStatus.noBloodRecirc = FALSE;
     alarmStatus.noDialRecirc = FALSE;
     alarmStatus.ok = FALSE;
 
@@ -572,6 +573,19 @@
 
 /*********************************************************************//**
  * @brief
+ * The isBloodRecircBlocked function determines whether any currently
+ * active alarm is blocking blood re-circulation.
+ * @details Inputs: alarmStatus
+ * @details Outputs: none
+ * @return TRUE if any active alarm prevents blood re-circulation, FALSE if not
+ *************************************************************************/
+BOOL isBloodRecircBlocked( void )
+{
+    return alarmStatus.noBloodRecirc;
+}
+
+/*********************************************************************//**
+ * @brief
  * The isDialysateRecircBlocked function determines whether any currently
  * active alarm is blocking dialysate re-circulation.
  * @details Inputs: alarmStatus
@@ -754,6 +768,7 @@
     ALARM_ID_T a;
     BOOL faultsActive = FALSE;
     BOOL dialysateRecircBlocked = FALSE;
+    BOOL bloodRecircBlocked = FALSE;
 
     // Update FIFOs and sub-ranks per active alarms table - for alarm ranking purposes to determine "top" alarm
     for ( a = ALARM_ID_NO_ALARM; a < NUM_OF_ALARM_IDS; a++ )
@@ -797,6 +812,11 @@
             {
                 dialysateRecircBlocked = TRUE;
             }
+            // Track whether any active alarms prevent blood re-circulation so far
+            if ( TRUE == ALARM_TABLE[ a ].alarmNoBloodRecirc )
+            {
+                bloodRecircBlocked = TRUE;
+            }
         }
     }
 
@@ -805,6 +825,7 @@
     alarmStatus.alarmTop = alarmPriorityFIFO[ highestPriority ].alarmID;
     alarmStatus.topAlarmConditionDetected = alarmIsDetected[ alarmStatus.alarmTop ];
     alarmStatus.systemFault = faultsActive;
+    alarmStatus.noBloodRecirc = bloodRecircBlocked;
     alarmStatus.noDialRecirc = dialysateRecircBlocked;
 }
 
Index: firmware/App/Services/SystemCommMessages.c
===================================================================
diff -u -r23ad90c3d5f08e67a1142a68c73d79fedb752da9 -r23ceb0a80986f0d4e61ba366e6d9691e57c4b08b
--- firmware/App/Services/SystemCommMessages.c	(.../SystemCommMessages.c)	(revision 23ad90c3d5f08e67a1142a68c73d79fedb752da9)
+++ firmware/App/Services/SystemCommMessages.c	(.../SystemCommMessages.c)	(revision 23ceb0a80986f0d4e61ba366e6d9691e57c4b08b)
@@ -6997,7 +6997,6 @@
     U32 currentMessage;
     U32 totalMessages;
     U32 payloadLength;
-
     BOOL status = FALSE;
     U08* payloadPtr = message->payload;
 
@@ -7021,6 +7020,72 @@
 
 /*********************************************************************//**
 * @brief
+* The handleUIServiceModeRequest function handles a request to enter service
+* mode.
+* @details Inputs: none
+* @details Outputs: message handled
+* @param message a pointer to the message to handle
+* @return none
+*************************************************************************/
+void handleUIServiceModeRequest( MESSAGE_T *message )
+{
+    BOOL status = FALSE;
+    HD_OP_MODE_T currentMode = getCurrentOperationMode();
+    REQUEST_REJECT_REASON_CODE_T reject;
+
+    if ( 0 == message->hdr.payloadLen )
+    {
+        if ( ( MODE_STAN == currentMode ) || ( MODE_FAUL == currentMode ) )
+        {
+            status = TRUE;
+            requestNewOperationMode( MODE_SERV );
+            reject = REQUEST_REJECT_REASON_NONE;
+        }
+        else
+        {
+            reject = REQUEST_REJECT_REASON_TREATMENT_IN_PROGRESS;
+        }
+    }
+    else
+    {
+        reject = REQUEST_REJECT_REASON_INVALID_REQUEST_FORMAT;
+    }
+
+    // Respond to request
+    sendTestAckResponseMsg( (MSG_ID_T)message->hdr.msgID, status );
+    sendUIServiceModeResponse( status, (U32)reject );
+}
+
+/*********************************************************************//**
+ * @brief
+ * The sendUIServiceModeResponse function sends out the HD response to a
+ * UI request to go to service mode.
+ * @details Inputs: none
+ * @details Outputs: Service mode request response msg constructed and queued
+ * @param accepted TRUE if request was accepted, FALSE if not
+ * @param rejCode Reject reason code explaining why request was rejected
+ * @return none
+ *************************************************************************/
+void sendUIServiceModeResponse( BOOL accepted, U32 rejCode )
+{
+    MESSAGE_T msg;
+    U08 *payloadPtr = msg.payload;
+
+    // Create a message record
+    blankMessage( &msg );
+    msg.hdr.msgID = MSG_ID_HD_RESPONSE_SERVICE_MODE_REQUEST;
+    msg.hdr.payloadLen = sizeof( BOOL ) + sizeof( U32 );
+
+    memcpy( payloadPtr, &accepted, sizeof( BOOL ) );
+    payloadPtr += sizeof( BOOL );
+    memcpy( payloadPtr, &rejCode, sizeof( U32 ) );
+
+    // Serialize the message (w/ sync, CRC, and appropriate CAN padding) and add serialized message data to appropriate comm buffer
+    serializeMessage( msg, COMM_BUFFER_OUT_CAN_HD_2_UI, ACK_REQUIRED );
+}
+
+/*********************************************************************//**
+* @brief
 * The handleGetHDUsageInfoRecord function handles a request to get the HD
 * usage information record.
 * @details Inputs: none
@@ -7121,4 +7186,54 @@
     return result;
 }
 
+/*********************************************************************//**
+* @brief
+* The handleSetBloodLeak2EmbeddedMode function handles a request to set the HD
+* blood leak to embedded mode.
+* @details Inputs: none
+* @details Outputs: message handled
+* @param message a pointer to the message to handle
+* @return none
+*************************************************************************/
+void handleSetBloodLeak2EmbeddedMode( MESSAGE_T* message )
+{
+    BOOL result = FALSE;
+
+    // verify payload length
+    if ( 0 == message->hdr.payloadLen )
+    {
+        result = testSetBloodLeak2EmbeddedMode();
+    }
+
+    // respond to request
+    sendTestAckResponseMsg( (MSG_ID_T)message->hdr.msgID, result );
+}
+
+/*********************************************************************//**
+* @brief
+* The handleSetBloodEmbeddedModeCommand function handles a request to set the HD
+* blood leak to embedded mode command.
+* @details Inputs: none
+* @details Outputs: message handled
+* @param message a pointer to the message to handle
+* @return none
+*************************************************************************/
+void handleSetBloodEmbeddedModeCommand( MESSAGE_T* message )
+{
+    U08  command;
+
+    BOOL result = FALSE;
+
+    // verify payload length
+    if ( sizeof(U08) == message->hdr.payloadLen )
+    {
+        memcpy(&command, message->payload, sizeof(U08));
+
+        result = testSetBloodLeakEmbeddedModeCommand( command );
+    }
+
+    // respond to request
+    sendTestAckResponseMsg( (MSG_ID_T)message->hdr.msgID, result );
+}
+
 /**@}*/