diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/car/UserGridRecyclerView.java b/packages/SystemUI/src/com/android/systemui/statusbar/car/UserGridRecyclerView.java
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index 0000000..e09a360
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+++ b/packages/SystemUI/src/com/android/systemui/statusbar/car/UserGridRecyclerView.java
@@ -0,0 +1,360 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package com.android.systemui.statusbar.car;
+
+import android.app.ActivityManager;
+import android.content.Context;
+import android.content.pm.UserInfo;
+import android.content.res.Resources;
+import android.graphics.Bitmap;
+import android.graphics.Canvas;
+import android.graphics.Paint;
+import android.graphics.Paint.Align;
+import android.graphics.drawable.GradientDrawable;
+import android.os.AsyncTask;
+import android.support.annotation.Nullable;
+import android.support.v7.widget.RecyclerView;
+import android.support.v7.widget.RecyclerView.ViewHolder;
+import android.util.AttributeSet;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ImageView;
+import android.widget.TextView;
+
+import com.android.settingslib.users.UserManagerHelper;
+import com.android.systemui.R;
+import com.android.systemui.qs.car.CarQSFragment;
+import com.android.systemui.statusbar.phone.StatusBar;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Displays a GridLayout with icons for the users in the system to allow switching between users.
+ * One of the uses of this is for the lock screen in auto.
+ */
+public class UserGridRecyclerView extends RecyclerView implements
+        UserManagerHelper.OnUsersUpdateListener {
+
+    private StatusBar mStatusBar;
+    private UserSelectionListener mUserSelectionListener;
+    private UserAdapter mAdapter;
+    private UserManagerHelper mUserManagerHelper;
+    private Context mContext;
+
+    public UserGridRecyclerView(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        super.setHasFixedSize(true);
+        mContext = context;
+        mUserManagerHelper = new UserManagerHelper(mContext);
+    }
+
+    /**
+     * Register listener for any update to the users
+     */
+    @Override
+    public void onFinishInflate() {
+        mUserManagerHelper.registerOnUsersUpdateListener(this);
+    }
+
+    /**
+     * Unregisters listener checking for any change to the users
+     */
+    @Override
+    public void onDetachedFromWindow() {
+        mUserManagerHelper.unregisterOnUsersUpdateListener();
+    }
+
+    /**
+     * Initializes the adapter that populates the grid layout
+     *
+     * @return the adapter
+     */
+    public void buildAdapter() {
+        List<UserRecord> userRecords = createUserRecords(mUserManagerHelper
+                .getAllUsers());
+        mAdapter = new UserAdapter(mContext, userRecords);
+        super.setAdapter(mAdapter);
+    }
+
+    public void setStatusBar(@Nullable StatusBar statusBar) {
+        mStatusBar = statusBar;
+    }
+
+    private List<UserRecord> createUserRecords(List<UserInfo> userInfoList) {
+        List<UserRecord> userRecords = new ArrayList<>();
+        for (UserInfo userInfo : userInfoList) {
+            boolean isCurrent = false;
+            if (ActivityManager.getCurrentUser() == userInfo.id) {
+                isCurrent = true;
+            }
+            UserRecord record = new UserRecord(userInfo, false /* isGuest */,
+                    false /* isAddUser */, isCurrent);
+            userRecords.add(record);
+        }
+
+        // Add guest user record if the current user is not a guest
+        if (!mUserManagerHelper.isGuestUser()) {
+            userRecords.add(addGuestUserRecord());
+        }
+
+        // Add add user record if the current user can add users
+        if (mUserManagerHelper.canAddUsers()) {
+            userRecords.add(addUserRecord());
+        }
+
+        return userRecords;
+    }
+
+    /**
+     * Create guest user record
+     */
+    private UserRecord addGuestUserRecord() {
+        UserInfo userInfo = new UserInfo();
+        userInfo.name = mContext.getString(R.string.car_guest);
+        return new UserRecord(userInfo, true /* isGuest */,
+                false /* isAddUser */, false /* isCurrent */);
+    }
+
+    /**
+     * Create add user record
+     */
+    private UserRecord addUserRecord() {
+        UserInfo userInfo = new UserInfo();
+        userInfo.name = mContext.getString(R.string.car_add_user);
+        return new UserRecord(userInfo, false /* isGuest */,
+                true /* isAddUser */, false /* isCurrent */);
+    }
+
+    public void onUserSwitched(int newUserId) {
+        // Bring up security view after user switch is completed.
+        post(this::showOfflineAuthUi);
+    }
+
+    public void setUserSelectionListener(UserSelectionListener userSelectionListener) {
+        mUserSelectionListener = userSelectionListener;
+    }
+
+    void showOfflineAuthUi() {
+        // TODO: Show keyguard UI in-place.
+        if (mStatusBar != null) {
+            mStatusBar.executeRunnableDismissingKeyguard(null/* runnable */, null /* cancelAction */,
+                    true /* dismissShade */, true /* afterKeyguardGone */, true /* deferred */);
+        }
+    }
+
+    @Override
+    public void onUsersUpdate() {
+        mAdapter.clearUsers();
+        mAdapter.updateUsers(createUserRecords(mUserManagerHelper.getAllUsers()));
+        mAdapter.notifyDataSetChanged();
+    }
+
+    /**
+     * Adapter to populate the grid layout with the available user profiles
+     */
+    public final class UserAdapter extends RecyclerView.Adapter<UserAdapter.UserAdapterViewHolder> {
+
+        private final Context mContext;
+        private List<UserRecord> mUsers;
+        private final int mPodImageAvatarWidth;
+        private final int mPodImageAvatarHeight;
+        private final Resources mRes;
+        private final String mGuestName;
+        private final String mNewUserName;
+
+        public UserAdapter(Context context, List<UserRecord> users) {
+            mRes = context.getResources();
+            mContext = context;
+            updateUsers(users);
+            mPodImageAvatarWidth = mRes.getDimensionPixelSize(
+                    R.dimen.car_fullscreen_user_pod_image_avatar_width);
+            mPodImageAvatarHeight = mRes.getDimensionPixelSize(
+                    R.dimen.car_fullscreen_user_pod_image_avatar_height);
+            mGuestName = mRes.getString(R.string.car_guest);
+            mNewUserName = mRes.getString(R.string.car_new_user);
+        }
+
+        public void clearUsers() {
+            mUsers.clear();
+        }
+
+        public void updateUsers(List<UserRecord> users) {
+            mUsers = users;
+        }
+
+        @Override
+        public UserAdapterViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
+            View view = LayoutInflater.from(mContext)
+                    .inflate(R.layout.car_fullscreen_user_pod, parent, false);
+            view.setAlpha(1f);
+            view.bringToFront();
+            return new UserAdapterViewHolder(view);
+        }
+
+        @Override
+        public void onBindViewHolder(UserAdapterViewHolder holder, int position) {
+            UserRecord userRecord = mUsers.get(position);
+            holder.mUserAvatarImageView.setImageBitmap(getDefaultUserIcon(userRecord));
+            holder.mUserNameTextView.setText(userRecord.mInfo.name);
+            holder.mView.setOnClickListener(v -> {
+                if (userRecord == null) {
+                    return;
+                }
+
+                // Notify the listener which user was selected
+                if (mUserSelectionListener != null) {
+                    mUserSelectionListener.onUserSelected(userRecord);
+                }
+
+                // If the user selects Guest, switch to Guest profile
+                if (userRecord.mIsGuest) {
+                    mUserManagerHelper.switchToGuest(mGuestName);
+                    return;
+                }
+
+                // If the user wants to add a user, start task to add new user
+                if (userRecord.mIsAddUser) {
+                    new AddNewUserTask().execute(mNewUserName);
+                    return;
+                }
+
+                // If the user doesn't want to be a guest or add a user, switch to the user selected
+                mUserManagerHelper.switchToUser(userRecord.mInfo);
+            });
+
+        }
+
+        private class AddNewUserTask extends AsyncTask<String, Void, UserInfo> {
+
+            @Override
+            protected UserInfo doInBackground(String... userNames) {
+                return mUserManagerHelper.createNewUser(userNames[0]);
+            }
+
+            @Override
+            protected void onPreExecute() {
+            }
+
+            @Override
+            protected void onPostExecute(UserInfo user) {
+                if (user != null) {
+                    mUserManagerHelper.switchToUser(user);
+                }
+            }
+        }
+
+        @Override
+        public int getItemCount() {
+            return mUsers.size();
+        }
+
+        /**
+         * Returns the default user icon.  This icon is a circle with a letter in it.  The letter is
+         * the first character in the username.
+         *
+         * @param record the profile of the user for which the icon should be created
+         */
+        private Bitmap getDefaultUserIcon(UserRecord record) {
+            CharSequence displayText;
+            boolean isAddUserText = false;
+            if (record.mIsAddUser) {
+                displayText = "+";
+                isAddUserText = true;
+            } else {
+                displayText = record.mInfo.name.subSequence(0, 1);
+            }
+            Bitmap out = Bitmap.createBitmap(mPodImageAvatarWidth, mPodImageAvatarHeight,
+                    Bitmap.Config.ARGB_8888);
+            Canvas canvas = new Canvas(out);
+
+            // Draw the circle background.
+            GradientDrawable shape = new GradientDrawable();
+            shape.setShape(GradientDrawable.RADIAL_GRADIENT);
+            shape.setGradientRadius(1.0f);
+            shape.setColor(mContext.getColor(R.color.car_user_switcher_no_user_image_bgcolor));
+            shape.setBounds(0, 0, mPodImageAvatarWidth, mPodImageAvatarHeight);
+            shape.draw(canvas);
+
+            // Draw the letter in the center.
+            Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
+            paint.setColor(mContext.getColor(R.color.car_user_switcher_no_user_image_fgcolor));
+            paint.setTextAlign(Align.CENTER);
+            if (isAddUserText) {
+                paint.setTextSize(mRes.getDimensionPixelSize(
+                        R.dimen.car_touch_target_size));
+            } else {
+                paint.setTextSize(mRes.getDimensionPixelSize(
+                        R.dimen.car_fullscreen_user_pod_icon_text_size));
+            }
+
+            Paint.FontMetricsInt metrics = paint.getFontMetricsInt();
+            // The Y coordinate is measured by taking half the height of the pod, but that would
+            // draw the character putting the bottom of the font in the middle of the pod.  To
+            // correct this, half the difference between the top and bottom distance metrics of the
+            // font gives the offset of the font.  Bottom is a positive value, top is negative, so
+            // the different is actually a sum.  The "half" operation is then factored out.
+            canvas.drawText(displayText.toString(), mPodImageAvatarWidth / 2,
+                    (mPodImageAvatarHeight - (metrics.bottom + metrics.top)) / 2, paint);
+
+            return out;
+        }
+
+        public class UserAdapterViewHolder extends RecyclerView.ViewHolder {
+
+            public ImageView mUserAvatarImageView;
+            public TextView mUserNameTextView;
+            public View mView;
+
+            public UserAdapterViewHolder(View view) {
+                super(view);
+                mView = view;
+                mUserAvatarImageView = (ImageView) view.findViewById(R.id.user_avatar);
+                mUserNameTextView = (TextView) view.findViewById(R.id.user_name);
+            }
+        }
+    }
+
+    /**
+     * Object wrapper class for the userInfo.  Use it to distinguish if a profile is a
+     * guest profile, add user profile, or a current user.
+     */
+    public static final class UserRecord {
+
+        public final UserInfo mInfo;
+        public final boolean mIsGuest;
+        public final boolean mIsAddUser;
+        public final boolean mIsCurrent;
+
+        public UserRecord(UserInfo userInfo, boolean isGuest, boolean isAddUser,
+                boolean isCurrent) {
+            mInfo = userInfo;
+            mIsGuest = isGuest;
+            mIsAddUser = isAddUser;
+            mIsCurrent = isCurrent;
+        }
+    }
+
+    /**
+     * Listener used to notify when a user has been selected
+     */
+    interface UserSelectionListener {
+
+        void onUserSelected(UserRecord record);
+    }
+}