diff --git a/frogpilot/common/frogpilot_variables.py b/frogpilot/common/frogpilot_variables.py
index 2355b651f..3a91ed6b3 100644
--- a/frogpilot/common/frogpilot_variables.py
+++ b/frogpilot/common/frogpilot_variables.py
@@ -62,6 +62,7 @@ THEME_SAVE_PATH = Path("/data/themes")
 ERROR_LOGS_PATH = Path("/data/error_logs")
 SCREEN_RECORDINGS_PATH = Path("/data/media/screen_recordings")
 VIDEO_CACHE_PATH = Path("/data/video_cache")
+MODEL_MIGRATION_FLAG_PATH = Path("/data/params/d/ModelMigratedBd2ToSc")
 
 BACKUP_PATH = Path("/cache/on_backup")
 
@@ -75,8 +76,8 @@ MAPD_PATH = Path("/data/media/0/osm/mapd")
 MAPS_PATH = Path("/data/media/0/osm/offline")
 NNFF_MODELS_PATH = Path(BASEDIR) / "frogpilot/assets/nnff_models"
 
-DEFAULT_MODEL = "bd2"
-DEFAULT_MODEL_NAME = "Firehose (Default) 👀📡"
+DEFAULT_MODEL = "sc"
+DEFAULT_MODEL_NAME = "South Carolina (Default) 👀📡"
 DEFAULT_MODEL_VERSION = "v11"
 
 BUTTON_FUNCTIONS = {
@@ -534,6 +535,18 @@ class FrogPilotVariables:
 
     tuning_level = params.get_int("TuningLevel") if params.get_bool("TuningLevelConfirmed") else 3
 
+    # One-time migration: move legacy bd2 selections to the new default sc model.
+    if not MODEL_MIGRATION_FLAG_PATH.is_file():
+      if params.get("Model", encoding="utf-8") == "bd2":
+        params.put("Model", DEFAULT_MODEL)
+        params.put("ModelVersion", DEFAULT_MODEL_VERSION)
+        params_cache.put("Model", DEFAULT_MODEL)
+        params_cache.put("ModelVersion", DEFAULT_MODEL_VERSION)
+      try:
+        MODEL_MIGRATION_FLAG_PATH.touch(exist_ok=True)
+      except OSError:
+        pass
+
     toggle.is_metric = params.get_bool("IsMetric")
     distance_conversion = 1 if toggle.is_metric else CV.FOOT_TO_METER
     small_distance_conversion = 1 if toggle.is_metric else CV.INCH_TO_CM
diff --git a/frogpilot/tinygrad_modeld/models/driving_policy_metadata.pkl b/frogpilot/tinygrad_modeld/models/driving_policy_metadata.pkl
index de1e6ad06..16d34afef 100644
Binary files a/frogpilot/tinygrad_modeld/models/driving_policy_metadata.pkl and b/frogpilot/tinygrad_modeld/models/driving_policy_metadata.pkl differ
diff --git a/frogpilot/tinygrad_modeld/models/driving_policy_tinygrad.pkl b/frogpilot/tinygrad_modeld/models/driving_policy_tinygrad.pkl
index e6cab52df..9087c02a2 100644
Binary files a/frogpilot/tinygrad_modeld/models/driving_policy_tinygrad.pkl and b/frogpilot/tinygrad_modeld/models/driving_policy_tinygrad.pkl differ
diff --git a/frogpilot/tinygrad_modeld/models/driving_vision_tinygrad.pkl b/frogpilot/tinygrad_modeld/models/driving_vision_tinygrad.pkl
index 8180a2d85..3f77c6100 100644
Binary files a/frogpilot/tinygrad_modeld/models/driving_vision_tinygrad.pkl and b/frogpilot/tinygrad_modeld/models/driving_vision_tinygrad.pkl differ
diff --git a/frogpilot/tinygrad_modeld/tinygrad_modeld.py b/frogpilot/tinygrad_modeld/tinygrad_modeld.py
index d6751f41d..77af121f0 100755
--- a/frogpilot/tinygrad_modeld/tinygrad_modeld.py
+++ b/frogpilot/tinygrad_modeld/tinygrad_modeld.py
@@ -125,8 +125,8 @@ class ModelState:
       cloudlog.warning(f"ModelVersion parameter not available: {e}")
 
     model_dir = MODELS_PATH
-    # For the default "bd2" model, use built-in files from the models directory
-    if model_id == "bd2":
+    # For the default "sc" model, use built-in files from the models directory
+    if model_id == "sc":
         models_dir = Path(__file__).parent / "models"
         VISION_PKL_PATH = models_dir / "driving_vision_tinygrad.pkl"
         POLICY_PKL_PATH = models_dir / "driving_policy_tinygrad.pkl"