diff --git a/messages/src/main/java/com/jwoglom/pumpx2/pump/messages/Messages.java b/messages/src/main/java/com/jwoglom/pumpx2/pump/messages/Messages.java
index 3bcf0c5..1a1a84d 100644
--- a/messages/src/main/java/com/jwoglom/pumpx2/pump/messages/Messages.java
+++ b/messages/src/main/java/com/jwoglom/pumpx2/pump/messages/Messages.java
@@ -170,6 +170,8 @@
 import com.jwoglom.pumpx2.pump.messages.response.control.StopG6SensorSessionResponse;
 import com.jwoglom.pumpx2.pump.messages.request.control.PlaySoundRequest;
 import com.jwoglom.pumpx2.pump.messages.response.control.PlaySoundResponse;
+import com.jwoglom.pumpx2.pump.messages.request.control.DisconnectPumpRequest;
+import com.jwoglom.pumpx2.pump.messages.response.control.DisconnectPumpResponse;
 // IMPORT_END
 import com.jwoglom.pumpx2.shared.L;
 
@@ -265,6 +267,7 @@ public enum Messages {
     START_G6_SENSOR_SESSION(StartG6SensorSessionRequest.class, StartG6SensorSessionResponse.class),
     STOP_G6_SENSOR_SESSION(StopG6SensorSessionRequest.class, StopG6SensorSessionResponse.class),
     PLAY_SOUND(PlaySoundRequest.class, PlaySoundResponse.class),
+    DISCONNECT_PUMP(DisconnectPumpRequest.class, DisconnectPumpResponse.class),
     // MESSAGES_END
     ;
 
diff --git a/messages/src/main/java/com/jwoglom/pumpx2/pump/messages/request/control/DisconnectPumpRequest.java b/messages/src/main/java/com/jwoglom/pumpx2/pump/messages/request/control/DisconnectPumpRequest.java
new file mode 100644
index 0000000..b867910
--- /dev/null
+++ b/messages/src/main/java/com/jwoglom/pumpx2/pump/messages/request/control/DisconnectPumpRequest.java
@@ -0,0 +1,40 @@
+package com.jwoglom.pumpx2.pump.messages.request.control;
+
+import com.google.common.base.Preconditions;
+import com.jwoglom.pumpx2.pump.messages.bluetooth.Characteristic;
+import com.jwoglom.pumpx2.pump.messages.helpers.Bytes;
+import com.jwoglom.pumpx2.pump.messages.Message;
+import com.jwoglom.pumpx2.pump.messages.MessageType;
+import com.jwoglom.pumpx2.pump.messages.annotations.MessageProps;
+import com.jwoglom.pumpx2.pump.messages.models.KnownApiVersion;
+import com.jwoglom.pumpx2.pump.messages.response.control.DisconnectPumpResponse;
+
+/*
+ * I don't actually think calling this command is required... since an app can just disconnect
+ * from the device over Bluetooth and forget the pairing key, and the user needs to re-trigger
+ * a pair in order to connect again anyway (either via menu on tslim X2 or entering "pairing mode"
+ * on the Mobi)
+ */
+@MessageProps(
+    opCode=-66,
+    size=0,
+    type=MessageType.REQUEST,
+    characteristic=Characteristic.CONTROL,
+    signed=true,
+    response=DisconnectPumpResponse.class,
+    minApi=KnownApiVersion.MOBI_API_V3_5
+)
+public class DisconnectPumpRequest extends Message { 
+    public DisconnectPumpRequest() {
+        this.cargo = EMPTY;
+    }
+
+    public void parse(byte[] raw) { 
+        raw = this.removeSignedRequestHmacBytes(raw);
+        Preconditions.checkArgument(raw.length == props().size());
+        this.cargo = raw;
+        
+    }
+
+    
+}
\ No newline at end of file
diff --git a/messages/src/main/java/com/jwoglom/pumpx2/pump/messages/response/control/DisconnectPumpResponse.java b/messages/src/main/java/com/jwoglom/pumpx2/pump/messages/response/control/DisconnectPumpResponse.java
new file mode 100644
index 0000000..ed3bc45
--- /dev/null
+++ b/messages/src/main/java/com/jwoglom/pumpx2/pump/messages/response/control/DisconnectPumpResponse.java
@@ -0,0 +1,53 @@
+package com.jwoglom.pumpx2.pump.messages.response.control;
+
+import com.google.common.base.Preconditions;
+import com.jwoglom.pumpx2.pump.messages.bluetooth.Characteristic;
+import com.jwoglom.pumpx2.pump.messages.helpers.Bytes;
+import com.jwoglom.pumpx2.pump.messages.Message;
+import com.jwoglom.pumpx2.pump.messages.MessageType;
+import com.jwoglom.pumpx2.pump.messages.annotations.MessageProps;
+import com.jwoglom.pumpx2.pump.messages.models.KnownApiVersion;
+import com.jwoglom.pumpx2.pump.messages.request.control.DisconnectPumpRequest;
+
+import java.math.BigInteger;
+
+@MessageProps(
+    opCode=-65,
+    size=1,
+    type=MessageType.RESPONSE,
+    characteristic=Characteristic.CONTROL,
+    signed=true,
+    request=DisconnectPumpRequest.class,
+    minApi=KnownApiVersion.MOBI_API_V3_5
+)
+public class DisconnectPumpResponse extends Message {
+    
+    private int status;
+    
+    public DisconnectPumpResponse() {}
+    
+    public DisconnectPumpResponse(int status) {
+        this.cargo = buildCargo(status);
+        this.status = status;
+        
+    }
+
+    public void parse(byte[] raw) { 
+        raw = this.removeSignedRequestHmacBytes(raw);
+        Preconditions.checkArgument(raw.length == props().size());
+        this.cargo = raw;
+        this.status = raw[0];
+        
+    }
+
+    
+    public static byte[] buildCargo(int status) {
+        return Bytes.combine(
+            new byte[]{ (byte) status });
+    }
+    
+    public int getStatus() {
+        return status;
+    }
+    
+}
\ No newline at end of file
diff --git a/messages/src/test/java/com/jwoglom/pumpx2/pump/messages/request/control/DisconnectPumpRequestTest.java b/messages/src/test/java/com/jwoglom/pumpx2/pump/messages/request/control/DisconnectPumpRequestTest.java
new file mode 100644
index 0000000..6fa4934
--- /dev/null
+++ b/messages/src/test/java/com/jwoglom/pumpx2/pump/messages/request/control/DisconnectPumpRequestTest.java
@@ -0,0 +1,32 @@
+package com.jwoglom.pumpx2.pump.messages.request.control;
+
+import static com.jwoglom.pumpx2.pump.messages.MessageTester.assertHexEquals;
+import static com.jwoglom.pumpx2.pump.messages.MessageTester.initPumpState;
+
+import com.jwoglom.pumpx2.pump.messages.MessageTester;
+import com.jwoglom.pumpx2.pump.messages.bluetooth.CharacteristicUUID;
+import com.jwoglom.pumpx2.pump.messages.request.control.DisconnectPumpRequest;
+
+import org.apache.commons.codec.DecoderException;
+import org.junit.Test;
+
+public class DisconnectPumpRequestTest {
+    @Test
+    public void testDisconnectPumpRequest() throws DecoderException {
+        initPumpState("authenticationKey", 0L);
+
+        // empty cargo
+        DisconnectPumpRequest expected = new DisconnectPumpRequest();
+
+        DisconnectPumpRequest parsedReq = (DisconnectPumpRequest) MessageTester.test(
+                "01debede18da38f31f38413194c36c036e110c25",
+                -34,
+                1,
+                CharacteristicUUID.CONTROL_CHARACTERISTICS,
+                expected,
+                "00deff81b3f10f7af28dcfb8fc"
+        );
+
+        assertHexEquals(expected.getCargo(), parsedReq.getCargo());
+    }
+}
\ No newline at end of file
diff --git a/messages/src/test/java/com/jwoglom/pumpx2/pump/messages/response/control/DisconnectPumpResponseTest.java b/messages/src/test/java/com/jwoglom/pumpx2/pump/messages/response/control/DisconnectPumpResponseTest.java
new file mode 100644
index 0000000..d72b374
--- /dev/null
+++ b/messages/src/test/java/com/jwoglom/pumpx2/pump/messages/response/control/DisconnectPumpResponseTest.java
@@ -0,0 +1,31 @@
+package com.jwoglom.pumpx2.pump.messages.response.control;
+
+import static com.jwoglom.pumpx2.pump.messages.MessageTester.assertHexEquals;
+import static com.jwoglom.pumpx2.pump.messages.MessageTester.initPumpState;
+
+import com.jwoglom.pumpx2.pump.messages.MessageTester;
+import com.jwoglom.pumpx2.pump.messages.bluetooth.CharacteristicUUID;
+
+import org.apache.commons.codec.DecoderException;
+import org.junit.Test;
+
+public class DisconnectPumpResponseTest {
+    @Test
+    public void testDisconnectPumpResponse() throws DecoderException { 
+        initPumpState("authenticationKey", 0L);
+        
+        DisconnectPumpResponse expected = new DisconnectPumpResponse(
+            0
+        );
+
+        DisconnectPumpResponse parsedRes = (DisconnectPumpResponse) MessageTester.test(
+                "00debfde1900000000003fad35823cf021e2dad26d3f485cd5b4557dfe88ef21",
+                -34,
+                1,
+                CharacteristicUUID.CONTROL_CHARACTERISTICS,
+                expected
+        );
+
+        assertHexEquals(expected.getCargo(), parsedRes.getCargo());
+    }
+}
\ No newline at end of file