diff --git a/packages/ember-runtime/lib/system/subarray.js b/packages/ember-runtime/lib/system/subarray.js
index 930f6c93186..8ae960c2839 100644
--- a/packages/ember-runtime/lib/system/subarray.js
+++ b/packages/ember-runtime/lib/system/subarray.js
@@ -1,3 +1,4 @@
+import Ember from 'ember-metal/core';
 import EmberError from 'ember-metal/error';
 
 var RETAIN = 'r';
@@ -20,6 +21,12 @@ export default SubArray;
   @private
 */
 function SubArray(length) {
+  Ember.deprecate(
+    'Ember.SubArray will be removed in 2.0.0.',
+    false,
+    { id: 'ember-metal.sub-array', until: '2.0.0' }
+  );
+
   if (arguments.length < 1) { length = 0; }
 
   if (length > 0) {
diff --git a/packages/ember-runtime/tests/system/subarray_test.js b/packages/ember-runtime/tests/system/subarray_test.js
index ebbf00c023c..98792a1b12c 100644
--- a/packages/ember-runtime/tests/system/subarray_test.js
+++ b/packages/ember-runtime/tests/system/subarray_test.js
@@ -4,6 +4,7 @@ var subarray;
 
 QUnit.module('SubArray', {
   setup() {
+    expectDeprecation('Ember.SubArray will be removed in 2.0.0.');
     subarray = new SubArray();
   }
 });