diff --git a/selfdrive/car/card.py b/selfdrive/car/card.py
index a83d5bb9891b4f..92d9b7eb11ddfd 100755
--- a/selfdrive/car/card.py
+++ b/selfdrive/car/card.py
@@ -72,7 +72,6 @@ def __init__(self, CI=None, RI=None) -> None:
     self.can_rcv_cum_timeout_counter = 0
 
     self.CC_prev = car.CarControl.new_message()
-    self.CS_prev = car.CarState.new_message()
     self.initialized_prev = False
 
     self.last_actuators_output = structs.CarControl.Actuators()
@@ -250,7 +249,6 @@ def step(self):
       self.controls_update(CS, self.sm['carControl'])
 
     self.initialized_prev = initialized
-    self.CS_prev = CS.as_reader()
 
   def params_thread(self, evt):
     while not evt.is_set():