diff --git a/selfdrive/car/gm/interface.py b/selfdrive/car/gm/interface.py
index c81f585189..633f6927c9 100755
--- a/selfdrive/car/gm/interface.py
+++ b/selfdrive/car/gm/interface.py
@@ -205,6 +205,7 @@ class CarInterface(CarInterfaceBase):
   def _update(self, c):
     ret = self.CS.update(self.cp, self.cp_cam, self.cp_loopback)
 
+    # Don't add event if transitioning from INIT, unless it's to an actual button
     if self.CS.cruise_buttons != CruiseButtons.UNPRESS or self.CS.prev_cruise_buttons != CruiseButtons.INIT:
       ret.buttonEvents = create_button_events(self.CS.cruise_buttons, self.CS.prev_cruise_buttons, BUTTONS_DICT,
                                               unpressed_btn=CruiseButtons.UNPRESS)