diff --git a/cereal/log.capnp b/cereal/log.capnp
index 1209f3fd95..8aa95ad6e6 100644
--- a/cereal/log.capnp
+++ b/cereal/log.capnp
@@ -2238,6 +2238,11 @@ struct LiveParametersData {
   roll @14 :Float32;
   debugFilterState @16 :FilterState;
 
+  angleOffsetValid @17 :Bool = true;
+  angleOffsetAverageValid @18 :Bool = true;
+  steerRatioValid @19 :Bool = true;
+  stiffnessFactorValid @20 :Bool = true;
+
   yawRateDEPRECATED @7 :Float32;
   filterStateDEPRECATED @15 :LiveLocationKalman.Measurement;
 
@@ -2564,7 +2569,7 @@ struct Event {
 
     # DO change the name of the field and struct
     # DON'T change the ID (e.g. @107)
-    # DON'T change which struct it points to 
+    # DON'T change which struct it points to
     customReserved0 @107 :Custom.CustomReserved0;
     customReserved1 @108 :Custom.CustomReserved1;
     customReserved2 @109 :Custom.CustomReserved2;
diff --git a/selfdrive/locationd/paramsd.py b/selfdrive/locationd/paramsd.py
index da2f3f20bb..24bf6619cf 100755
--- a/selfdrive/locationd/paramsd.py
+++ b/selfdrive/locationd/paramsd.py
@@ -224,17 +224,21 @@ def main():
       liveParameters.posenetValid = True
       liveParameters.sensorValid = sensors_valid
       liveParameters.steerRatio = float(x[States.STEER_RATIO].item())
+      liveParameters.steerRatioValid = min_sr <= liveParameters.steerRatio <= max_sr
       liveParameters.stiffnessFactor = float(x[States.STIFFNESS].item())
+      liveParameters.stiffnessFactorValid = 0.2 <= liveParameters.stiffnessFactor <= 5.0
       liveParameters.roll = float(roll)
       liveParameters.angleOffsetAverageDeg = float(angle_offset_average)
+      liveParameters.angleOffsetAverageValid = bool(avg_offset_valid)
       liveParameters.angleOffsetDeg = float(angle_offset)
+      liveParameters.angleOffsetValid = bool(total_offset_valid)
       liveParameters.valid = all((
-        avg_offset_valid,
-        total_offset_valid,
+        liveParameters.angleOffsetAverageValid,
+        liveParameters.angleOffsetValid ,
         roll_valid,
         roll_std < ROLL_STD_MAX,
-        0.2 <= liveParameters.stiffnessFactor <= 5.0,
-        min_sr <= liveParameters.steerRatio <= max_sr,
+        liveParameters.stiffnessFactorValid,
+        liveParameters.steerRatioValid,
       ))
       liveParameters.steerRatioStd = float(P[States.STEER_RATIO].item())
       liveParameters.stiffnessFactorStd = float(P[States.STIFFNESS].item())
diff --git a/selfdrive/selfdrived/events.py b/selfdrive/selfdrived/events.py
index 06c87f849c..d89418e177 100755
--- a/selfdrive/selfdrived/events.py
+++ b/selfdrive/selfdrived/events.py
@@ -292,6 +292,24 @@ def calibration_invalid_alert(CP: car.CarParams, CS: car.CarState, sm: messaging
   return NormalPermanentAlert("Calibration Invalid", angles)
 
 
+def paramsd_invalid_alert(CP: car.CarParams, CS: car.CarState, sm: messaging.SubMaster, metric: bool, soft_disable_time: int, personality) -> Alert:
+  if not sm['liveParameters'].angleOffsetValid:
+    angle_offset_deg = sm['liveParameters'].angleOffsetDeg
+    title = "Steering misalignment detected"
+    text = f"Angle offset too high (Offset: {angle_offset_deg:.1f}°)"
+  elif not sm['liveParameters'].steerRatioValid:
+    steer_ratio = sm['liveParameters'].steerRatio
+    title = "Steer ratio mismatch"
+    text = f"Steering rack geometry may be off (Ratio: {steer_ratio:.1f})"
+  elif not sm['liveParameters'].stiffnessFactorValid:
+    stiffness_factor = sm['liveParameters'].stiffnessFactor
+    title = "Abnormal tire stiffness"
+    text = f"Check tires, pressure, or alignment (Factor: {stiffness_factor:.1f})"
+  else:
+    return NoEntryAlert("paramsd Temporary Error")
+
+  return NoEntryAlert(alert_text_1=title, alert_text_2=text)
+
 def overheat_alert(CP: car.CarParams, CS: car.CarState, sm: messaging.SubMaster, metric: bool, soft_disable_time: int, personality) -> Alert:
   cpu = max(sm['deviceState'].cpuTempC, default=0.)
   gpu = max(sm['deviceState'].gpuTempC, default=0.)
@@ -604,7 +622,7 @@ EVENTS: dict[int, dict[str, Alert | AlertCallbackType]] = {
   # This alert is thrown when any of these values exceed a sanity check. This can be caused by
   # bad alignment or bad sensor data. If this happens consistently consider creating an issue on GitHub
   EventName.paramsdTemporaryError: {
-    ET.NO_ENTRY: NoEntryAlert("paramsd Temporary Error"),
+    ET.NO_ENTRY: paramsd_invalid_alert,
     ET.SOFT_DISABLE: soft_disable_alert("paramsd Temporary Error"),
   },
 
diff --git a/selfdrive/test/process_replay/ref_commit b/selfdrive/test/process_replay/ref_commit
index 2838c67f93..3c63f00300 100644
--- a/selfdrive/test/process_replay/ref_commit
+++ b/selfdrive/test/process_replay/ref_commit
@@ -1 +1 @@
-d1538daa94478c50008cee81716fa7408df6606e
\ No newline at end of file
+d343af55506b14a4011bfe43b2a49c7e3c387d75
\ No newline at end of file