diff --git a/packages/SystemUI/src/com/android/keyguard/KeyguardHostViewController.java b/packages/SystemUI/src/com/android/keyguard/KeyguardHostViewController.java
index 3ebd652b3467c..598325ce44f34 100644
--- a/packages/SystemUI/src/com/android/keyguard/KeyguardHostViewController.java
+++ b/packages/SystemUI/src/com/android/keyguard/KeyguardHostViewController.java
@@ -320,6 +320,10 @@ public class KeyguardHostViewController extends ViewController<KeyguardHostView>
         mKeyguardSecurityContainerController.showPrimarySecurityScreen(false);
     }
 
+    /**
+     * Fades and translates in/out the security screen.
+     * @param fraction amount of the screen that should show.
+     */
     public void setExpansion(float fraction) {
         float alpha = MathUtils.map(KeyguardBouncer.ALPHA_EXPANSION_THRESHOLD, 1, 1, 0, fraction);
         mView.setAlpha(MathUtils.constrain(alpha, 0f, 1f));
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBar.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBar.java
index e033c47259994..6239efc985dcd 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBar.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBar.java
@@ -2109,7 +2109,7 @@ public class StatusBar extends SystemUI implements
         mShadeController.runPostCollapseRunnables();
         setInteracting(StatusBarManager.WINDOW_STATUS_BAR, false);
         if (!mNotificationActivityStarter.isCollapsingToShowActivityOverLockscreen()) {
-            showBouncerIfKeyguard();
+            showBouncerOrLockScreenIfKeyguard();
         } else if (DEBUG) {
             Log.d(TAG, "Not showing bouncer due to activity showing over lockscreen");
         }
@@ -3315,13 +3315,17 @@ public class StatusBar extends SystemUI implements
         return false;
     }
 
-    private void showBouncerIfKeyguard() {
+    private void showBouncerOrLockScreenIfKeyguard() {
         if (!mKeyguardViewMediator.isHiding()) {
-            if (mState == StatusBarState.KEYGUARD
-                    && !mStatusBarKeyguardViewManager.bouncerIsOrWillBeShowing()) {
+            if (mState == StatusBarState.SHADE_LOCKED
+                    && mKeyguardUpdateMonitor.isUdfpsEnrolled()) {
+                // shade is showing while locked on the keyguard, so go back to showing the
+                // lock screen where users can use the UDFPS affordance to enter the device
+                mStatusBarKeyguardViewManager.reset(true);
+            } else if ((mState == StatusBarState.KEYGUARD
+                    && !mStatusBarKeyguardViewManager.bouncerIsOrWillBeShowing())
+                    || mState == StatusBarState.SHADE_LOCKED) {
                 mStatusBarKeyguardViewManager.showGenericBouncer(true /* scrimmed */);
-            } else if (mState == StatusBarState.SHADE_LOCKED) {
-                mStatusBarKeyguardViewManager.showBouncer(true /* scrimmed */);
             }
         }
     }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarKeyguardViewManager.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarKeyguardViewManager.java
index 0d23d663c51c1..9944bf8498084 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarKeyguardViewManager.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarKeyguardViewManager.java
@@ -60,6 +60,7 @@ import com.android.systemui.shared.system.SysUiStatsLog;
 import com.android.systemui.statusbar.NotificationMediaManager;
 import com.android.systemui.statusbar.NotificationShadeWindowController;
 import com.android.systemui.statusbar.RemoteInputController;
+import com.android.systemui.statusbar.StatusBarState;
 import com.android.systemui.statusbar.SysuiStatusBarStateController;
 import com.android.systemui.statusbar.notification.ViewGroupFadeHelper;
 import com.android.systemui.statusbar.phone.KeyguardBouncer.BouncerExpansionCallback;
@@ -337,6 +338,12 @@ public class StatusBarKeyguardViewManager implements RemoteInputController.Callb
         // • Full-screen user switcher is displayed.
         if (mNotificationPanelViewController.isUnlockHintRunning()) {
             mBouncer.setExpansion(KeyguardBouncer.EXPANSION_HIDDEN);
+        } else if (mStatusBarStateController.getState() == StatusBarState.SHADE_LOCKED
+                && mKeyguardUpdateManager.isUdfpsEnrolled()) {
+            // Don't expand to the bouncer. Instead transition back to the lock screen (see
+            // StatusBar#showBouncerOrLockScreenIfKeyguard) where the user can use the UDFPS
+            // affordance to enter the device (or swipe up to the input bouncer)
+            return;
         } else if (bouncerNeedsScrimming()) {
             mBouncer.setExpansion(KeyguardBouncer.EXPANSION_VISIBLE);
         } else if (mShowing) {