Index: firmware/App/Services/SystemCommMessages.c
===================================================================
diff -u -r410083fef5d5db6157666e3c92263cb4eb64c30c -r470f647e29c8c4451b3576afcf21b896badc5f8f
--- firmware/App/Services/SystemCommMessages.c	(.../SystemCommMessages.c)	(revision 410083fef5d5db6157666e3c92263cb4eb64c30c)
+++ firmware/App/Services/SystemCommMessages.c	(.../SystemCommMessages.c)	(revision 470f647e29c8c4451b3576afcf21b896badc5f8f)
@@ -899,15 +899,16 @@
 {
     BOOL result = FALSE;
 
-    if ( message->hdr.payloadLen == sizeof( U32 ) )
+    if ( message->hdr.payloadLen == sizeof( DG_SWITCH_RSRVRS_CMD_T ) )
     {
-        DG_RESERVOIR_ID_T reservoirID;
-        U32 resID;
+        DG_SWITCH_RSRVRS_CMD_T cmd;
 
+        memcpy( &cmd, message->payload, sizeof( DG_SWITCH_RSRVRS_CMD_T ) );
+
+        setActiveReservoirCmd( (DG_RESERVOIR_ID_T)cmd.reservoirID );
+        setTrimmerHeaterUseLastDutyCycleStatus( cmd.useLastTrimmerHeaterDC );
+
         result = TRUE;
-        memcpy( &resID, message->payload, sizeof( U32 ) );
-        reservoirID = (DG_RESERVOIR_ID_T)resID;
-        setActiveReservoirCmd( reservoirID );
     }
 
     sendAckResponseMsg( (MSG_ID_T)message->hdr.msgID, COMM_BUFFER_OUT_CAN_DG_2_HD, result );