diff --git a/car.capnp b/car.capnp
index 745389232..aef654af9 100644
--- a/car.capnp
+++ b/car.capnp
@@ -150,6 +150,10 @@ struct CarState {
 
   # which packets this state came from
   canMonoTimes @12: List(UInt64);
+  
+  # blindspot sensors
+  leftBlindspot @32 :Bool; # Is there something blocking the left lane change
+  rightBlindspot @33 :Bool; # Is there something blocking the right lane change
 
   struct WheelSpeeds {
     # optional wheel speeds