diff --git a/homeassistant/components/teslemetry/manifest.json b/homeassistant/components/teslemetry/manifest.json
index 061de63ca6ba..16028cb660e5 100644
--- a/homeassistant/components/teslemetry/manifest.json
+++ b/homeassistant/components/teslemetry/manifest.json
@@ -12,6 +12,6 @@
   "requirements": [
     "aiopowerwall==0.4.1",
     "tesla-fleet-api==1.17.2",
-    "teslemetry-stream==1.0.2"
+    "teslemetry-stream==1.2.0"
   ]
 }
diff --git a/homeassistant/components/teslemetry/sensor.py b/homeassistant/components/teslemetry/sensor.py
index d1b56b766661..a58ce014e519 100644
--- a/homeassistant/components/teslemetry/sensor.py
+++ b/homeassistant/components/teslemetry/sensor.py
@@ -3,7 +3,7 @@
 from collections.abc import Callable
 from dataclasses import dataclass
 from datetime import datetime, timedelta
-from typing import override
+from typing import Any, override
 
 from tesla_fleet_api import firmware_at_least
 from tesla_fleet_api.const import Scope
@@ -59,6 +59,12 @@ PARALLEL_UPDATES = 0
 # vehicles, identified by this driver-assist capability in the vehicle config.
 DRIVER_ASSIST_HW4 = "TeslaAP4"
 
+
+def _tires_in_warning(warnings: dict[str, Any] | None) -> int | None:
+    """Count the tires flagged in a per-tire TPMS warning field."""
+    return None if warnings is None else sum(bool(v) for v in warnings.values())
+
+
 BMS_STATES = {
     "Standby": "standby",
     "Drive": "drive",
@@ -1430,7 +1436,7 @@ VEHICLE_DESCRIPTIONS: tuple[TeslemetryVehicleSensorEntityDescription, ...] = (
     TeslemetryVehicleSensorEntityDescription(
         key="tpms_hard_warnings",
         streaming_listener=lambda vehicle, callback: vehicle.listen_TpmsHardWarnings(
-            callback
+            lambda value: callback(_tires_in_warning(value))
         ),
         entity_category=EntityCategory.DIAGNOSTIC,
         entity_registry_enabled_default=False,
@@ -1438,7 +1444,7 @@ VEHICLE_DESCRIPTIONS: tuple[TeslemetryVehicleSensorEntityDescription, ...] = (
     TeslemetryVehicleSensorEntityDescription(
         key="tpms_soft_warnings",
         streaming_listener=lambda vehicle, callback: vehicle.listen_TpmsSoftWarnings(
-            callback
+            lambda value: callback(_tires_in_warning(value))
         ),
         entity_category=EntityCategory.DIAGNOSTIC,
         entity_registry_enabled_default=False,
diff --git a/requirements_all.txt b/requirements_all.txt
index 8e2f3a095c28..88a81e8706d4 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -3240,7 +3240,7 @@ tesla-powerwall==0.5.3
 tesla-wall-connector==1.2.0
 
 # homeassistant.components.teslemetry
-teslemetry-stream==1.0.2
+teslemetry-stream==1.2.0
 
 # homeassistant.components.tessie
 tessie-api==0.1.3
diff --git a/tests/components/teslemetry/test_sensor.py b/tests/components/teslemetry/test_sensor.py
index 4eb8206358e7..8598025bc470 100644
--- a/tests/components/teslemetry/test_sensor.py
+++ b/tests/components/teslemetry/test_sensor.py
@@ -50,6 +50,20 @@ ENERGY_HISTORY_ENTITY = "sensor.energy_site_battery_discharged"
 # or from the event's created_at cannot produce this.
 SITE_MIDNIGHT = "2024-09-18T00:00:00+10:00"
 
+# Per-tire TPMS warning objects including the Tesla Semi.
+TPMS_NO_WARNINGS = {
+    "frontLeft": False,
+    "frontRight": False,
+    "rearLeft": False,
+    "rearRight": False,
+    "semiMiddleAxleLeft2": False,
+    "semiMiddleAxleRight2": False,
+    "semiRearAxleLeft": False,
+    "semiRearAxleLeft2": False,
+    "semiRearAxleRight": False,
+    "semiRearAxleRight2": False,
+}
+
 
 def _products_with_driver_assist(driver_assist: str) -> dict:
     """Return a products response with the vehicle's driver-assist capability set."""
@@ -460,6 +474,48 @@ async def test_sensors_streaming_tpms_none_clears_state(
     assert hass.states.get(entity_id).state == STATE_UNKNOWN
 
 
+@pytest.mark.parametrize(
+    ("signal", "entity_id"),
+    [
+        pytest.param(
+            Signal.TPMS_HARD_WARNINGS,
+            "sensor.test_tire_pressure_hard_warnings",
+            id="hard",
+        ),
+        pytest.param(
+            Signal.TPMS_SOFT_WARNINGS,
+            "sensor.test_tire_pressure_soft_warnings",
+            id="soft",
+        ),
+    ],
+)
+@pytest.mark.usefixtures("entity_registry_enabled_by_default")
+async def test_sensors_streaming_tpms_warnings(
+    hass: HomeAssistant,
+    mock_add_listener: AsyncMock,
+    signal: Signal,
+    entity_id: str,
+) -> None:
+    """Test TPMS warning sensors report how many tires are in warning."""
+    await setup_platform(hass, [Platform.SENSOR])
+    vin = VEHICLE_DATA_ALT["response"]["vin"]
+
+    for warnings, expected_state in (
+        ({**TPMS_NO_WARNINGS, "frontRight": True, "rearLeft": True}, "2"),
+        (TPMS_NO_WARNINGS, "0"),
+        (None, STATE_UNKNOWN),
+    ):
+        mock_add_listener.send(
+            {
+                "vin": vin,
+                "data": {signal: warnings},
+                "createdAt": "2024-10-04T10:45:17.537Z",
+            }
+        )
+        await hass.async_block_till_done()
+        assert hass.states.get(entity_id).state == expected_state
+
+
 @pytest.mark.parametrize(
     "raw_value",
     [