diff --git a/selfdrive/car/chrysler/values.py b/selfdrive/car/chrysler/values.py
index 8fa7664b66..bb60139507 100644
--- a/selfdrive/car/chrysler/values.py
+++ b/selfdrive/car/chrysler/values.py
@@ -11,6 +11,7 @@ Ecu = car.CarParams.Ecu
 
 
 class ChryslerFlags(IntFlag):
+  # Detected flags
   HIGHER_MIN_STEERING_SPEED = 1
 
 @dataclass
diff --git a/selfdrive/car/mazda/values.py b/selfdrive/car/mazda/values.py
index 246038bba3..5597e9f52f 100644
--- a/selfdrive/car/mazda/values.py
+++ b/selfdrive/car/mazda/values.py
@@ -33,6 +33,7 @@ class MazdaCarInfo(CarInfo):
 
 
 class MazdaFlags(IntFlag):
+  # Static flags
   # Gen 1 hardware: same CAN messages and same camera
   GEN1 = 1
 
@@ -40,7 +41,7 @@ class MazdaFlags(IntFlag):
 @dataclass
 class MazdaPlatformConfig(PlatformConfig):
   dbc_dict: DbcDict = field(default_factory=lambda: dbc_dict('mazda_2017', None))
-  flags: int = field(default=MazdaFlags.GEN1)
+  flags: int = MazdaFlags.GEN1
 
 
 class CAR(Platforms):
diff --git a/selfdrive/car/subaru/values.py b/selfdrive/car/subaru/values.py
index 7bf0f11bad..c2b2d16d7f 100644
--- a/selfdrive/car/subaru/values.py
+++ b/selfdrive/car/subaru/values.py
@@ -53,8 +53,11 @@ class CarControllerParams:
 
 
 class SubaruFlags(IntFlag):
+  # Detected flags
   SEND_INFOTAINMENT = 1
   DISABLE_EYESIGHT = 2
+
+  # Static flags
   GLOBAL_GEN2 = 4
 
   # Cars that temporarily fault when steering angle rate is greater than some threshold.
diff --git a/selfdrive/car/volkswagen/values.py b/selfdrive/car/volkswagen/values.py
index 065a340928..f00fd971aa 100644
--- a/selfdrive/car/volkswagen/values.py
+++ b/selfdrive/car/volkswagen/values.py
@@ -110,6 +110,7 @@ class CANBUS:
 
 
 class VolkswagenFlags(IntFlag):
+  # Detected flags
   STOCK_HCA_PRESENT = 1