diff --git a/core/java/android/view/accessibility/flags/accessibility_flags.aconfig b/core/java/android/view/accessibility/flags/accessibility_flags.aconfig
index 48f8f1b..f657949 100644
--- a/core/java/android/view/accessibility/flags/accessibility_flags.aconfig
+++ b/core/java/android/view/accessibility/flags/accessibility_flags.aconfig
@@ -87,6 +87,13 @@
 }
 
 flag {
+    name: "skip_accessibility_warning_dialog_for_trusted_services"
+    namespace: "accessibility"
+    description: "Skips showing the accessibility warning dialog for trusted services."
+    bug: "303511250"
+}
+
+flag {
     namespace: "accessibility"
     name: "update_always_on_a11y_service"
     description: "Updates the Always-On A11yService state when the user changes the enablement of the shortcut."
diff --git a/core/res/res/values/config.xml b/core/res/res/values/config.xml
index 806be94..73f682f 100644
--- a/core/res/res/values/config.xml
+++ b/core/res/res/values/config.xml
@@ -4493,6 +4493,16 @@
     <!-- URI for default Accessibility notification sound when to enable accessibility shortcut. -->
     <string name="config_defaultAccessibilityNotificationSound" translatable="false"></string>
 
+    <!-- Array of component names, each flattened to a string, for accessibility services that
+         can be enabled by the user without showing a warning prompt. These services must be
+         preinstalled. -->
+    <string-array translatable="false" name="config_trustedAccessibilityServices">
+        <!--
+        <item>com.example.package.first/com.example.class.FirstService</item>
+        <item>com.example.package.second/com.example.class.SecondService</item>
+        -->
+    </string-array>
+
     <!-- Warning: This API can be dangerous when not implemented properly. In particular,
          escrow token must NOT be retrievable from device storage. In other words, either
          escrow token is not stored on device or its ciphertext is stored on device while
diff --git a/core/res/res/values/symbols.xml b/core/res/res/values/symbols.xml
index d12ef2b..a38a690 100644
--- a/core/res/res/values/symbols.xml
+++ b/core/res/res/values/symbols.xml
@@ -3629,6 +3629,7 @@
   <java-symbol type="string" name="config_defaultAccessibilityService" />
   <java-symbol type="string" name="config_defaultAccessibilityNotificationSound" />
   <java-symbol type="string" name="accessibility_shortcut_spoken_feedback" />
+  <java-symbol type="array" name="config_trustedAccessibilityServices" />
 
   <java-symbol type="string" name="accessibility_select_shortcut_menu_title" />
   <java-symbol type="string" name="accessibility_edit_shortcut_menu_button_title" />
diff --git a/services/accessibility/java/com/android/server/accessibility/AccessibilityManagerService.java b/services/accessibility/java/com/android/server/accessibility/AccessibilityManagerService.java
index 3d8d7b7..d656892 100644
--- a/services/accessibility/java/com/android/server/accessibility/AccessibilityManagerService.java
+++ b/services/accessibility/java/com/android/server/accessibility/AccessibilityManagerService.java
@@ -4413,25 +4413,50 @@
     @Override
     public boolean isAccessibilityServiceWarningRequired(AccessibilityServiceInfo info) {
         mSecurityPolicy.enforceCallingOrSelfPermission(Manifest.permission.MANAGE_ACCESSIBILITY);
+        final ComponentName componentName = info.getComponentName();
 
         // Warning is not required if the service is already enabled.
         synchronized (mLock) {
             final AccessibilityUserState userState = getCurrentUserStateLocked();
-            if (userState.getEnabledServicesLocked().contains(info.getComponentName())) {
+            if (userState.getEnabledServicesLocked().contains(componentName)) {
                 return false;
             }
         }
         // Warning is not required if the service is already assigned to a shortcut.
         for (int shortcutType : AccessibilityManager.SHORTCUT_TYPES) {
             if (getAccessibilityShortcutTargets(shortcutType).contains(
-                    info.getComponentName().flattenToString())) {
+                    componentName.flattenToString())) {
                 return false;
             }
         }
+        // Warning is not required if the service is preinstalled and in the
+        // trustedAccessibilityServices allowlist.
+        if (android.view.accessibility.Flags.skipAccessibilityWarningDialogForTrustedServices()
+                && isAccessibilityServicePreinstalledAndTrusted(info)) {
+            return false;
+        }
+
         // Warning is required by default.
         return true;
     }
 
+    private boolean isAccessibilityServicePreinstalledAndTrusted(AccessibilityServiceInfo info) {
+        final ComponentName componentName = info.getComponentName();
+        final boolean isPreinstalled =
+                info.getResolveInfo().serviceInfo.applicationInfo.isSystemApp();
+        if (isPreinstalled) {
+            final String[] trustedAccessibilityServices =
+                    mContext.getResources().getStringArray(
+                            R.array.config_trustedAccessibilityServices);
+            if (Arrays.stream(trustedAccessibilityServices)
+                    .map(ComponentName::unflattenFromString)
+                    .anyMatch(componentName::equals)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
     @Override
     public void dump(FileDescriptor fd, final PrintWriter pw, String[] args) {
         if (!DumpUtils.checkDumpPermission(mContext, LOG_TAG, pw)) return;
diff --git a/services/tests/servicestests/src/com/android/server/accessibility/AccessibilityManagerServiceTest.java b/services/tests/servicestests/src/com/android/server/accessibility/AccessibilityManagerServiceTest.java
index 57c3a1d..95cfc2a 100644
--- a/services/tests/servicestests/src/com/android/server/accessibility/AccessibilityManagerServiceTest.java
+++ b/services/tests/servicestests/src/com/android/server/accessibility/AccessibilityManagerServiceTest.java
@@ -22,6 +22,7 @@
 import static android.provider.Settings.Secure.ACCESSIBILITY_MAGNIFICATION_MODE_NONE;
 import static android.provider.Settings.Secure.ACCESSIBILITY_MAGNIFICATION_MODE_WINDOW;
 import static android.view.accessibility.Flags.FLAG_CLEANUP_ACCESSIBILITY_WARNING_DIALOG;
+import static android.view.accessibility.Flags.FLAG_SKIP_ACCESSIBILITY_WARNING_DIALOG_FOR_TRUSTED_SERVICES;
 
 import static com.android.internal.accessibility.AccessibilityShortcutController.ACCESSIBILITY_HEARING_AIDS_COMPONENT_NAME;
 import static com.android.internal.accessibility.AccessibilityShortcutController.MAGNIFICATION_CONTROLLER_NAME;
@@ -82,6 +83,7 @@
 import androidx.test.filters.SmallTest;
 
 import com.android.compatibility.common.util.TestUtils;
+import com.android.internal.R;
 import com.android.internal.compat.IPlatformCompat;
 import com.android.server.LocalServices;
 import com.android.server.accessibility.AccessibilityManagerService.AccessibilityDisplayListener;
@@ -857,8 +859,7 @@
     @RequiresFlagsEnabled(FLAG_CLEANUP_ACCESSIBILITY_WARNING_DIALOG)
     public void testIsAccessibilityServiceWarningRequired_requiredByDefault() {
         mockManageAccessibilityGranted(mTestableContext);
-        final AccessibilityServiceInfo info = new AccessibilityServiceInfo();
-        info.setComponentName(COMPONENT_NAME);
+        final AccessibilityServiceInfo info = mockAccessibilityServiceInfo(COMPONENT_NAME);
 
         assertThat(mA11yms.isAccessibilityServiceWarningRequired(info)).isTrue();
     }
@@ -867,10 +868,9 @@
     @RequiresFlagsEnabled(FLAG_CLEANUP_ACCESSIBILITY_WARNING_DIALOG)
     public void testIsAccessibilityServiceWarningRequired_notRequiredIfAlreadyEnabled() {
         mockManageAccessibilityGranted(mTestableContext);
-        final AccessibilityServiceInfo info_a = new AccessibilityServiceInfo();
-        info_a.setComponentName(COMPONENT_NAME);
-        final AccessibilityServiceInfo info_b = new AccessibilityServiceInfo();
-        info_b.setComponentName(new ComponentName("package_b", "class_b"));
+        final AccessibilityServiceInfo info_a = mockAccessibilityServiceInfo(COMPONENT_NAME);
+        final AccessibilityServiceInfo info_b = mockAccessibilityServiceInfo(
+                new ComponentName("package_b", "class_b"));
         final AccessibilityUserState userState = mA11yms.getCurrentUserState();
         userState.mEnabledServices.clear();
         userState.mEnabledServices.add(info_b.getComponentName());
@@ -883,12 +883,12 @@
     @RequiresFlagsEnabled(FLAG_CLEANUP_ACCESSIBILITY_WARNING_DIALOG)
     public void testIsAccessibilityServiceWarningRequired_notRequiredIfExistingShortcut() {
         mockManageAccessibilityGranted(mTestableContext);
-        final AccessibilityServiceInfo info_a = new AccessibilityServiceInfo();
-        info_a.setComponentName(new ComponentName("package_a", "class_a"));
-        final AccessibilityServiceInfo info_b = new AccessibilityServiceInfo();
-        info_b.setComponentName(new ComponentName("package_b", "class_b"));
-        final AccessibilityServiceInfo info_c = new AccessibilityServiceInfo();
-        info_c.setComponentName(new ComponentName("package_c", "class_c"));
+        final AccessibilityServiceInfo info_a = mockAccessibilityServiceInfo(
+                new ComponentName("package_a", "class_a"));
+        final AccessibilityServiceInfo info_b = mockAccessibilityServiceInfo(
+                new ComponentName("package_b", "class_b"));
+        final AccessibilityServiceInfo info_c = mockAccessibilityServiceInfo(
+                new ComponentName("package_c", "class_c"));
         final AccessibilityUserState userState = mA11yms.getCurrentUserState();
         userState.mAccessibilityButtonTargets.clear();
         userState.mAccessibilityButtonTargets.add(info_b.getComponentName().flattenToString());
@@ -900,6 +900,51 @@
         assertThat(mA11yms.isAccessibilityServiceWarningRequired(info_c)).isFalse();
     }
 
+    @Test
+    @RequiresFlagsEnabled({
+            FLAG_CLEANUP_ACCESSIBILITY_WARNING_DIALOG,
+            FLAG_SKIP_ACCESSIBILITY_WARNING_DIALOG_FOR_TRUSTED_SERVICES})
+    public void testIsAccessibilityServiceWarningRequired_notRequiredIfAllowlisted() {
+        mockManageAccessibilityGranted(mTestableContext);
+        final AccessibilityServiceInfo info_a = mockAccessibilityServiceInfo(
+                new ComponentName("package_a", "class_a"), true);
+        final AccessibilityServiceInfo info_b = mockAccessibilityServiceInfo(
+                new ComponentName("package_b", "class_b"), false);
+        final AccessibilityServiceInfo info_c = mockAccessibilityServiceInfo(
+                new ComponentName("package_c", "class_c"), true);
+        mTestableContext.getOrCreateTestableResources().addOverride(
+                R.array.config_trustedAccessibilityServices,
+                new String[]{
+                        info_b.getComponentName().flattenToString(),
+                        info_c.getComponentName().flattenToString()});
+
+        // info_a is not in the allowlist => require the warning
+        assertThat(mA11yms.isAccessibilityServiceWarningRequired(info_a)).isTrue();
+        // info_b is not preinstalled => require the warning
+        assertThat(mA11yms.isAccessibilityServiceWarningRequired(info_b)).isTrue();
+        // info_c is both in the allowlist and preinstalled => do not require the warning
+        assertThat(mA11yms.isAccessibilityServiceWarningRequired(info_c)).isFalse();
+    }
+
+    private static AccessibilityServiceInfo mockAccessibilityServiceInfo(
+            ComponentName componentName) {
+        return mockAccessibilityServiceInfo(componentName, false);
+    }
+
+    private static AccessibilityServiceInfo mockAccessibilityServiceInfo(
+            ComponentName componentName,
+            boolean isSystemApp) {
+        AccessibilityServiceInfo accessibilityServiceInfo =
+                Mockito.spy(new AccessibilityServiceInfo());
+        accessibilityServiceInfo.setComponentName(componentName);
+        ResolveInfo mockResolveInfo = Mockito.mock(ResolveInfo.class);
+        when(accessibilityServiceInfo.getResolveInfo()).thenReturn(mockResolveInfo);
+        mockResolveInfo.serviceInfo = Mockito.mock(ServiceInfo.class);
+        mockResolveInfo.serviceInfo.applicationInfo = Mockito.mock(ApplicationInfo.class);
+        when(mockResolveInfo.serviceInfo.applicationInfo.isSystemApp()).thenReturn(isSystemApp);
+        return accessibilityServiceInfo;
+    }
+
     // Single package intents can trigger multiple PackageMonitor callbacks.
     // Collect the state of the lock in a set, since tests only care if calls
     // were all locked or all unlocked.