diff --git a/selfdrive/hardware/base.py b/selfdrive/hardware/base.py
index 9ed66bb3b1..6652ac57d5 100644
--- a/selfdrive/hardware/base.py
+++ b/selfdrive/hardware/base.py
@@ -117,3 +117,7 @@ class HardwareBase:
   @abstractmethod
   def get_gpu_usage_percent(self):
     pass
+
+  @abstractmethod
+  def get_modem_version(self):
+    pass
diff --git a/selfdrive/hardware/eon/hardware.py b/selfdrive/hardware/eon/hardware.py
index 3f686b25af..76de35a724 100644
--- a/selfdrive/hardware/eon/hardware.py
+++ b/selfdrive/hardware/eon/hardware.py
@@ -385,3 +385,6 @@ class Android(HardwareBase):
       return min(max(perc, 0), 100)
     except Exception:
       return 0
+
+  def get_modem_version(self):
+    return None
diff --git a/selfdrive/hardware/pc/hardware.py b/selfdrive/hardware/pc/hardware.py
index 7a0f8ff088..0d3e4f168f 100644
--- a/selfdrive/hardware/pc/hardware.py
+++ b/selfdrive/hardware/pc/hardware.py
@@ -88,3 +88,6 @@ class Pc(HardwareBase):
 
   def get_gpu_usage_percent(self):
     return 0
+
+  def get_modem_version(self):
+    return None
diff --git a/selfdrive/hardware/tici/hardware.py b/selfdrive/hardware/tici/hardware.py
index 2d8b873c5a..86b87c28e9 100644
--- a/selfdrive/hardware/tici/hardware.py
+++ b/selfdrive/hardware/tici/hardware.py
@@ -213,6 +213,13 @@ class Tici(HardwareBase):
 
     return network_strength
 
+  def get_modem_version(self):
+    try:
+      modem = self.get_modem()
+      return modem.Get(MM_MODEM, 'Revision', dbus_interface=DBUS_PROPS, timeout=TIMEOUT)
+    except Exception:
+      return None
+
   # We don't have a battery, so let's use some sane constants
   def get_battery_capacity(self):
     return 100
diff --git a/selfdrive/thermald/thermald.py b/selfdrive/thermald/thermald.py
index b21197055e..8092585e22 100755
--- a/selfdrive/thermald/thermald.py
+++ b/selfdrive/thermald/thermald.py
@@ -156,6 +156,7 @@ def thermald_thread():
   network_type = NetworkType.none
   network_strength = NetworkStrength.unknown
   network_info = None
+  modem_version = None
   registered_count = 0
 
   current_filter = FirstOrderFilter(0., CURRENT_TAU, DT_TRML)
@@ -237,6 +238,12 @@ def thermald_thread():
         network_strength = HARDWARE.get_network_strength(network_type)
         network_info = HARDWARE.get_network_info()  # pylint: disable=assignment-from-none
 
+        # Log modem version once
+        if modem_version is None:
+          modem_version = HARDWARE.get_modem_version()  # pylint: disable=assignment-from-none
+          if modem_version is not None:
+            cloudlog.warning(f"Modem version: {modem_version}")
+
         if TICI and (network_info.get('state', None) == "REGISTERED"):
           registered_count += 1
         else: