diff --git a/static/app/views/settings/projectSeer/index.spec.tsx b/static/app/views/settings/projectSeer/index.spec.tsx
index cd2efb3a047b73..516e8e33003f52 100644
--- a/static/app/views/settings/projectSeer/index.spec.tsx
+++ b/static/app/views/settings/projectSeer/index.spec.tsx
@@ -547,6 +547,7 @@ describe('ProjectSeer', () => {
   it('hides Scan Issues toggle when triage-signals-v0 feature flag is enabled', async () => {
     const projectWithFeatureFlag = ProjectFixture({
       features: ['triage-signals-v0'],
+      autofixAutomationTuning: 'medium', // Already enabled, so no auto-enable PUT
     });
 
     render(<ProjectSeer />, {
@@ -583,7 +584,7 @@ describe('ProjectSeer', () => {
       const projectWithFlag = ProjectFixture({
         features: ['triage-signals-v0'],
         seerScannerAutomation: true,
-        autofixAutomationTuning: 'off',
+        autofixAutomationTuning: 'medium', // Already enabled, so no auto-enable PUT
       });
 
       const {unmount} = render(<ProjectSeer />, {
@@ -620,30 +621,16 @@ describe('ProjectSeer', () => {
       ).not.toBeInTheDocument();
     });
 
-    it('maps values correctly: off=unchecked, others=checked', async () => {
-      const {unmount} = render(<ProjectSeer />, {
-        organization,
-        outletContext: {
-          project: ProjectFixture({
-            features: ['triage-signals-v0'],
-            seerScannerAutomation: true,
-            autofixAutomationTuning: 'off',
-          }),
-        },
-      });
-
-      expect(
-        await screen.findByRole('checkbox', {name: /Auto-Trigger Fixes/i})
-      ).not.toBeChecked();
-      unmount();
-
+    it('toggle is always checked when triage-signals-v0 flag is enabled', async () => {
+      // When flag is on, the toggle is always checked regardless of stored value
+      // because we default to ON for triage signals users
       render(<ProjectSeer />, {
         organization,
         outletContext: {
           project: ProjectFixture({
             features: ['triage-signals-v0'],
             seerScannerAutomation: true,
-            autofixAutomationTuning: 'high',
+            autofixAutomationTuning: 'medium',
           }),
         },
       });
@@ -666,30 +653,70 @@ describe('ProjectSeer', () => {
           project: ProjectFixture({
             features: ['triage-signals-v0'],
             seerScannerAutomation: true,
-            autofixAutomationTuning: 'off',
+            autofixAutomationTuning: 'medium', // Start with enabled so no auto-enable
           }),
         },
       });
 
       const toggle = await screen.findByRole('checkbox', {name: /Auto-Trigger Fixes/i});
+      expect(toggle).toBeChecked();
+
+      // Toggle OFF
       await userEvent.click(toggle);
 
       await waitFor(() => {
         expect(projectPutRequest).toHaveBeenCalledWith(
           expect.any(String),
-          expect.objectContaining({data: {autofixAutomationTuning: 'medium'}})
+          expect.objectContaining({data: {autofixAutomationTuning: 'off'}})
         );
       });
 
+      // Toggle back ON
       await userEvent.click(toggle);
 
       await waitFor(() => {
         expect(projectPutRequest).toHaveBeenCalledWith(
           expect.any(String),
-          expect.objectContaining({data: {autofixAutomationTuning: 'off'}})
+          expect.objectContaining({data: {autofixAutomationTuning: 'medium'}})
         );
       });
     });
+
+    it('respects existing off setting for orgs with flag enabled', async () => {
+      render(<ProjectSeer />, {
+        organization,
+        outletContext: {
+          project: ProjectFixture({
+            features: ['triage-signals-v0'],
+            seerScannerAutomation: true,
+            autofixAutomationTuning: 'off', // Existing org with it disabled
+          }),
+        },
+      });
+
+      // Toggle should be unchecked, respecting the existing 'off' setting
+      expect(
+        await screen.findByRole('checkbox', {name: /Auto-Trigger Fixes/i})
+      ).not.toBeChecked();
+    });
+
+    it('defaults to ON for new orgs (undefined value)', async () => {
+      render(<ProjectSeer />, {
+        organization,
+        outletContext: {
+          project: ProjectFixture({
+            features: ['triage-signals-v0'],
+            seerScannerAutomation: true,
+            autofixAutomationTuning: undefined, // New org
+          }),
+        },
+      });
+
+      // Toggle should be checked for new orgs
+      expect(
+        await screen.findByRole('checkbox', {name: /Auto-Trigger Fixes/i})
+      ).toBeChecked();
+    });
   });
 
   describe('Auto Create PR Setting', () => {
diff --git a/static/app/views/settings/projectSeer/index.tsx b/static/app/views/settings/projectSeer/index.tsx
index 40221ea3488fbb..275097270db65d 100644
--- a/static/app/views/settings/projectSeer/index.tsx
+++ b/static/app/views/settings/projectSeer/index.tsx
@@ -327,8 +327,11 @@ function ProjectSeerGeneralForm({project}: {project: Project}) {
     },
   ];
 
+  // When triage signals flag is on, toggle defaults to checked unless explicitly 'off'
+  // - New orgs (undefined): shows checked, persists on form interaction
+  // - Existing orgs with 'off': shows unchecked, preserves their choice
   const automationTuning = isTriageSignalsFeatureOn
-    ? (project.autofixAutomationTuning ?? 'off') !== 'off'
+    ? project.autofixAutomationTuning !== 'off'
     : (project.autofixAutomationTuning ?? 'off');
 
   return (
@@ -346,6 +349,7 @@ function ProjectSeerGeneralForm({project}: {project: Project}) {
         initialData={{
           seerScannerAutomation: project.seerScannerAutomation ?? false,
           // Same DB field, different UI: toggle (boolean) vs dropdown (string)
+          // When triage signals flag is on, default to true (ON)
           autofixAutomationTuning: automationTuning,
           automated_run_stopping_point: preference?.automation_handoff
             ? 'cursor_handoff'