diff --git a/config/chromeos_config.py b/config/chromeos_config.py
index 913f521..b980143 100644
--- a/config/chromeos_config.py
+++ b/config/chromeos_config.py
@@ -1281,12 +1281,14 @@
   _vmrvc_no_hwtest_boards = frozenset([])
   _vmrvc_no_hwtest_experimental_boards = frozenset([])
   _vmrvc_hwtest_boards = frozenset([
-      'grunt-arc-r',
       'hatch-arc-r',
       'kukui-arc-r',
       'rammus-arc-r',
   ])
-  _vmrvc_hwtest_experimental_boards = frozenset([])
+  _vmrvc_hwtest_experimental_boards = frozenset([
+      # Grunt-arc-r demoted from critical because of https://crbug.com/1151502
+      'grunt-arc-r',
+  ])
   _vmrvc_vmtest_boards = frozenset([])
   _vmrvc_vmtest_experimental_boards = frozenset([])
 
diff --git a/config/config_dump.json b/config/config_dump.json
index 513c340..1598bbe 100644
--- a/config/config_dump.json
+++ b/config/config_dump.json
@@ -15910,6 +15910,7 @@
             "{\n    \"async\": false,\n    \"blocking\": true,\n    \"critical\": false,\n    \"enable_skylab\": true,\n    \"file_bugs\": false,\n    \"max_retries\": 5,\n    \"minimum_duts\": 1,\n    \"offload_failures_only\": false,\n    \"pool\": \"quota\",\n    \"priority\": \"DEFAULT\",\n    \"quota_account\": \"legacypool-suites\",\n    \"retry\": true,\n    \"suite\": \"sanity\",\n    \"suite_args\": null,\n    \"suite_min_duts\": 1,\n    \"timeout\": 10800,\n    \"warn_only\": false\n}",
             "{\n    \"async\": false,\n    \"blocking\": false,\n    \"critical\": false,\n    \"enable_skylab\": true,\n    \"file_bugs\": false,\n    \"max_retries\": 5,\n    \"minimum_duts\": 1,\n    \"offload_failures_only\": false,\n    \"pool\": \"quota\",\n    \"priority\": \"DEFAULT\",\n    \"quota_account\": \"legacypool-suites\",\n    \"retry\": true,\n    \"suite\": \"bvt-tast-android-pfq\",\n    \"suite_args\": null,\n    \"suite_min_duts\": 1,\n    \"timeout\": 15000,\n    \"warn_only\": false\n}"
         ],
+        "important": false,
         "manifest": "official.xml",
         "unittests": false,
         "useflags": [