diff --git a/src/compatibility/5.1/android-5.1-cdd.html b/src/compatibility/5.1/android-5.1-cdd.html
index 204e4af..a47d9cf 100644
--- a/src/compatibility/5.1/android-5.1-cdd.html
+++ b/src/compatibility/5.1/android-5.1-cdd.html
@@ -382,6 +382,11 @@
   <li> MUST support uiMode = UI_MODE_TYPE_WATCH [<a href="http://developer.android.com/reference/android/content/res/Configuration.html#UI_MODE_TYPE_WATCH">Resources, 4</a>]
 </ul>
 
+<p><strong>Android Automotive implementation</strong> refers to a vehicle head
+unit running Android as an operating system for part or all of the system and/or
+infotainment functionality. Android Automotive implementations MUST support
+uiMode = UI_MODE_TYPE_CAR [<a href="http://developer.android.com/reference/android/content/res/Configuration.html#UI_MODE_TYPE_CAR">Resources, 111</a>].</p>
+
 <p>All Android device implementations that do not fit into any of the above device
 types still MUST meet all requirements in this document to be Android 5.1
 compatible, unless the requirement is explicitly described to be only
@@ -6211,6 +6216,8 @@
 
 <p>110. WebM project: <a href="http://www.webmproject.org/">http://www.webmproject.org/</a>  </p>
 
+<p>111. Android Auto feature: <a href="http://developer.android.com/reference/android/content/res/Configuration.html#UI_MODE_TYPE_CAR">http://developer.android.com/reference/android/content/res/Configuration.html#UI_MODE_TYPE_CAR</a></p>
+
 <p>Many of these resources are derived directly or indirectly from the Android
 SDK, and will be functionally identical to the information in that SDK's
 documentation. In any cases where this Compatibility Definition or the