diff --git a/opendbc b/opendbc
index f4b1061ae0..3cfd0bf4eb 160000
--- a/opendbc
+++ b/opendbc
@@ -1 +1 @@
-Subproject commit f4b1061ae03994013809dc4a03ac571bfeda5714
+Subproject commit 3cfd0bf4eb73953f3d179dddc1ba2c92e317188c
diff --git a/selfdrive/car/gm/carstate.py b/selfdrive/car/gm/carstate.py
index 89c1a3596a..f7309939b1 100644
--- a/selfdrive/car/gm/carstate.py
+++ b/selfdrive/car/gm/carstate.py
@@ -113,6 +113,10 @@ class CarState(CarStateBase):
       if self.CP.pcmCruise:
         ret.cruiseState.nonAdaptive = cam_cp.vl["ASCMActiveCruiseControlStatus"]["ACCCruiseState"] not in (2, 3)
 
+    if self.CP.enableBsm:
+      ret.leftBlindspot = pt_cp.vl["BCMBlindSpotMonitor"]["LeftBSM"] == 1
+      ret.rightBlindspot = pt_cp.vl["BCMBlindSpotMonitor"]["RightBSM"] == 1
+
     return ret
 
   @staticmethod
@@ -146,6 +150,9 @@ class CarState(CarStateBase):
       ("ECMAcceleratorPos", 80),
     ]
 
+    if CP.enableBsm:
+      messages.append(("BCMBlindSpotMonitor", 10))
+
     # Used to read back last counter sent to PT by camera
     if CP.networkLocation == NetworkLocation.fwdCamera:
       messages += [
diff --git a/selfdrive/car/gm/interface.py b/selfdrive/car/gm/interface.py
index a0defb7cfb..af34100d74 100755
--- a/selfdrive/car/gm/interface.py
+++ b/selfdrive/car/gm/interface.py
@@ -72,6 +72,7 @@ class CarInterface(CarInterfaceBase):
     ret.carName = "gm"
     ret.safetyConfigs = [get_safety_config(car.CarParams.SafetyModel.gm)]
     ret.autoResumeSng = False
+    ret.enableBsm = 0x142 in fingerprint[CanBus.POWERTRAIN]
 
     if candidate in EV_CAR:
       ret.transmissionType = TransmissionType.direct