diff --git a/src/modern/class/ReactComponent.js b/src/modern/class/ReactComponent.js
index bec7026b3d..3dd3b85f37 100644
--- a/src/modern/class/ReactComponent.js
+++ b/src/modern/class/ReactComponent.js
@@ -98,20 +98,38 @@ ReactComponent.prototype.forceUpdate = function(callback) {
  */
 if (__DEV__) {
   var deprecatedAPIs = {
-    getDOMNode: 'getDOMNode',
-    isMounted: 'isMounted',
-    replaceProps: 'replaceProps',
-    replaceState: 'replaceState',
-    setProps: 'setProps'
+    getDOMNode: [
+      'getDOMNode',
+      'Use React.findDOMNode(component) instead.'
+    ],
+    isMounted: [
+      'isMounted',
+      'Instead, make sure to clean up subscriptions and pending requests in ' +
+      'componentWillUnmount to prevent memory leaks.'
+    ],
+    replaceProps: [
+      'replaceProps',
+      'Instead, call React.render again at the top level.'
+    ],
+    replaceState: [
+      'replaceState',
+      'Refactor your code to use setState instead (see ' +
+      'https://github.com/facebook/react/issues/3236).'
+    ],
+    setProps: [
+      'setProps',
+      'Instead, call React.render again at the top level.'
+    ]
   };
-  var defineDeprecationWarning = function(methodName, displayName) {
+  var defineDeprecationWarning = function(methodName, info) {
     try {
       Object.defineProperty(ReactComponent.prototype, methodName, {
         get: function() {
           warning(
             false,
-            '%s(...) is deprecated in plain JavaScript React classes.',
-            displayName
+            '%s(...) is deprecated in plain JavaScript React classes. %s',
+            info[0],
+            info[1]
           );
           return undefined;
         }
diff --git a/src/modern/class/__tests__/ReactES6Class-test.js b/src/modern/class/__tests__/ReactES6Class-test.js
index 11c125342d..17b682063f 100644
--- a/src/modern/class/__tests__/ReactES6Class-test.js
+++ b/src/modern/class/__tests__/ReactES6Class-test.js
@@ -373,7 +373,8 @@ describe('ReactES6Class', function() {
     expect(() => instance.replaceProps({name: 'bar'})).toThrow();
     expect(console.error.calls.length).toBe(5);
     expect(console.error.calls[0].args[0]).toContain(
-      'getDOMNode(...) is deprecated in plain JavaScript React classes'
+      'getDOMNode(...) is deprecated in plain JavaScript React classes. ' +
+      'Use React.findDOMNode(component) instead.'
     );
     expect(console.error.calls[1].args[0]).toContain(
       'replaceState(...) is deprecated in plain JavaScript React classes'