diff --git a/src/media-groups.js b/src/media-groups.js
index 918026aad..6a3124b08 100644
--- a/src/media-groups.js
+++ b/src/media-groups.js
@@ -512,7 +512,7 @@ export const initialize = {
           const track = tech.addRemoteTextTrack({
             id: variantLabel,
             kind: 'subtitles',
-            enabled: false,
+            default: properties.default && properties.autoselect,
             language: properties.language,
             label: variantLabel
           }, false).track;
@@ -568,7 +568,7 @@ export const initialize = {
           const track = tech.addRemoteTextTrack({
             id: properties.instreamId,
             kind: 'captions',
-            enabled: false,
+            default: properties.default && properties.autoselect,
             language: properties.language,
             label: variantLabel
           }, false).track;
diff --git a/test/media-groups.test.js b/test/media-groups.test.js
index 3aa4261e8..f83c0427e 100644
--- a/test/media-groups.test.js
+++ b/test/media-groups.test.js
@@ -686,55 +686,76 @@ function(assert) {
 });
 
 QUnit.test('initialize subtitles correctly generates tracks and playlist loaders',
-function(assert) {
-  const type = 'SUBTITLES';
+  function(assert) {
+    const type = 'SUBTITLES';
 
-  this.master.mediaGroups[type].sub1 = {
-    'en': { language: 'en', resolvedUri: 'sub1/en.m3u8' },
-    'en-forced': { language: 'en', resolvedUri: 'sub1/en-forced.m3u8', forced: true },
-    'fr': { language: 'fr', resolvedUri: 'sub1/fr.m3u8' }
-  };
-  this.master.mediaGroups[type].sub2 = {
-    'en': { language: 'en', resolvedUri: 'sub2/en.m3u8' },
-    'en-forced': { language: 'en', resolvedUri: 'sub2/en-forced.m3u8', forced: true },
-    'fr': { language: 'fr', resolvedUri: 'sub2/fr.m3u8' }
-  };
+    this.master.mediaGroups[type].sub1 = {
+      'en': { language: 'en', default: true, resolvedUri: 'sub1/en.m3u8' },
+      'en-forced': { language: 'en', resolvedUri: 'sub1/en-forced.m3u8', forced: true },
+      'fr': { language: 'fr', resolvedUri: 'sub1/fr.m3u8' }
+    };
+    this.master.mediaGroups[type].sub2 = {
+      'en': { language: 'en', resolvedUri: 'sub2/en.m3u8' },
+      'en-forced': { language: 'en', resolvedUri: 'sub2/en-forced.m3u8', forced: true },
+      'fr': { language: 'fr', resolvedUri: 'sub2/fr.m3u8' }
+    };
 
-  MediaGroups.initialize[type](type, this.settings);
+    MediaGroups.initialize[type](type, this.settings);
+
+    assert.deepEqual(this.mediaTypes[type].groups,
+      {
+        sub1: [
+          { id: 'en', language: 'en', default: true, resolvedUri: 'sub1/en.m3u8',
+            playlistLoader: this.mediaTypes[type].groups.sub1[0].playlistLoader },
+          { id: 'fr', language: 'fr', resolvedUri: 'sub1/fr.m3u8',
+            playlistLoader: this.mediaTypes[type].groups.sub1[1].playlistLoader }
+        ],
+        sub2: [
+          { id: 'en', language: 'en', resolvedUri: 'sub2/en.m3u8',
+            playlistLoader: this.mediaTypes[type].groups.sub2[0].playlistLoader },
+          { id: 'fr', language: 'fr', resolvedUri: 'sub2/fr.m3u8',
+            playlistLoader: this.mediaTypes[type].groups.sub2[1].playlistLoader }
+        ]
+      }, 'creates group properties');
+    assert.ok(this.mediaTypes[type].groups.sub1[0].playlistLoader,
+      'playlistLoader created');
+    assert.ok(this.mediaTypes[type].groups.sub1[1].playlistLoader,
+      'playlistLoader created');
+    assert.ok(this.mediaTypes[type].groups.sub2[0].playlistLoader,
+      'playlistLoader created');
+    assert.ok(this.mediaTypes[type].groups.sub2[1].playlistLoader,
+      'playlistLoader created');
+    assert.ok(this.mediaTypes[type].tracks.en, 'created text track');
+    assert.equal(this.mediaTypes[type].tracks.en.default, undefined, 'No autoselect, no default');
+    assert.ok(this.mediaTypes[type].tracks.fr, 'created text track');
+  });
+
+QUnit.test('initialize subtitles correctly with auto select',
+  function(assert) {
+    const type = 'SUBTITLES';
+
+    this.master.mediaGroups[type].sub1 = {
+      'en': { language: 'en', default: true, autoselect: true, resolvedUri: 'sub1/en.m3u8' },
+      'en-forced': { language: 'en', resolvedUri: 'sub1/en-forced.m3u8', forced: true },
+      'fr': { language: 'fr', resolvedUri: 'sub1/fr.m3u8' }
+    };
+    this.master.mediaGroups[type].sub2 = {
+      'en': { language: 'en', resolvedUri: 'sub2/en.m3u8' },
+      'en-forced': { language: 'en', resolvedUri: 'sub2/en-forced.m3u8', forced: true },
+      'fr': { language: 'fr', resolvedUri: 'sub2/fr.m3u8' }
+    };
 
-  assert.deepEqual(this.mediaTypes[type].groups,
-    {
-      sub1: [
-        { id: 'en', language: 'en', resolvedUri: 'sub1/en.m3u8',
-          playlistLoader: this.mediaTypes[type].groups.sub1[0].playlistLoader },
-        { id: 'fr', language: 'fr', resolvedUri: 'sub1/fr.m3u8',
-          playlistLoader: this.mediaTypes[type].groups.sub1[1].playlistLoader }
-      ],
-      sub2: [
-        { id: 'en', language: 'en', resolvedUri: 'sub2/en.m3u8',
-          playlistLoader: this.mediaTypes[type].groups.sub2[0].playlistLoader },
-        { id: 'fr', language: 'fr', resolvedUri: 'sub2/fr.m3u8',
-          playlistLoader: this.mediaTypes[type].groups.sub2[1].playlistLoader }
-      ]
-    }, 'creates group properties');
-  assert.ok(this.mediaTypes[type].groups.sub1[0].playlistLoader,
-    'playlistLoader created');
-  assert.ok(this.mediaTypes[type].groups.sub1[1].playlistLoader,
-    'playlistLoader created');
-  assert.ok(this.mediaTypes[type].groups.sub2[0].playlistLoader,
-    'playlistLoader created');
-  assert.ok(this.mediaTypes[type].groups.sub2[1].playlistLoader,
-    'playlistLoader created');
-  assert.ok(this.mediaTypes[type].tracks.en, 'created text track');
-  assert.ok(this.mediaTypes[type].tracks.fr, 'created text track');
-});
+    MediaGroups.initialize[type](type, this.settings);
+
+    assert.equal(this.mediaTypes[type].tracks.en.default, true, 'en track auto selected');
+  });
 
 QUnit.test('initialize closed-captions correctly generates tracks and NO loaders',
 function(assert) {
   const type = 'CLOSED-CAPTIONS';
 
   this.master.mediaGroups[type].CCs = {
-    en608: { language: 'en', instreamId: 'CC1' },
+    en608: { language: 'en', default: true, autoselect: true, instreamId: 'CC1' },
     en708: { language: 'en', instreamId: 'SERVICE1' },
     fr608: { language: 'fr', instreamId: 'CC3' },
     fr708: { language: 'fr', instreamId: 'SERVICE3' }
@@ -745,12 +766,13 @@ function(assert) {
   assert.deepEqual(this.mediaTypes[type].groups,
     {
       CCs: [
-        { id: 'en608', language: 'en', instreamId: 'CC1' },
+        { id: 'en608', default: true, autoselect: true, language: 'en', instreamId: 'CC1' },
         { id: 'fr608', language: 'fr', instreamId: 'CC3' }
       ]
     }, 'creates group properties');
   assert.ok(this.mediaTypes[type].tracks.en608, 'created text track');
   assert.ok(this.mediaTypes[type].tracks.fr608, 'created text track');
+  assert.equal(this.mediaTypes[type].tracks.en608.default, true, 'en608 track auto selected');
 });
 
 QUnit.test('initialize audio correctly uses HLS source type', function(assert) {