diff --git a/core/java/android/view/WindowManager.java b/core/java/android/view/WindowManager.java
index b2d70321178e1..001ab6650551a 100644
--- a/core/java/android/view/WindowManager.java
+++ b/core/java/android/view/WindowManager.java
@@ -1475,6 +1475,9 @@ public interface WindowManager extends ViewManager {
          * <p>When this flag is enabled for a window, it automatically sets
          * the system UI visibility flags {@link View#SYSTEM_UI_FLAG_LAYOUT_STABLE} and
          * {@link View#SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN}.</p>
+         *
+         * <p>Note: For devices that support
+         * {@link android.content.pm.PackageManager#FEATURE_AUTOMOTIVE} this flag may be ignored.
          */
         public static final int FLAG_TRANSLUCENT_STATUS = 0x04000000;
 
@@ -1494,6 +1497,10 @@ public interface WindowManager extends ViewManager {
          * <p>When this flag is enabled for a window, it automatically sets
          * the system UI visibility flags {@link View#SYSTEM_UI_FLAG_LAYOUT_STABLE} and
          * {@link View#SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION}.</p>
+         *
+         * <p>Note: For devices that support
+         * {@link android.content.pm.PackageManager#FEATURE_AUTOMOTIVE} this flag can be disabled
+         * by the car manufacturers.
          */
         public static final int FLAG_TRANSLUCENT_NAVIGATION = 0x08000000;
 
diff --git a/packages/CarSystemUI/res/values/colors.xml b/packages/CarSystemUI/res/values/colors.xml
index e0ae456623909..5fcf38fce3cca 100644
--- a/packages/CarSystemUI/res/values/colors.xml
+++ b/packages/CarSystemUI/res/values/colors.xml
@@ -32,7 +32,7 @@
     <color name="system_bar_background_opaque">#ff172026</color>
 
     <color name="status_bar_background_color">#33000000</color>
-    <drawable name="system_bar_background">@android:color/transparent</drawable>
+    <drawable name="system_bar_background">@color/status_bar_background_color</drawable>
 
     <!-- The background color of the notification shade -->
     <color name="notification_shade_background_color">#D6000000</color>