diff --git a/homeassistant/components/trane/climate.py b/homeassistant/components/trane/climate.py
index 19fbfa7f2115..093e53e97736 100644
--- a/homeassistant/components/trane/climate.py
+++ b/homeassistant/components/trane/climate.py
@@ -55,7 +55,7 @@ async def async_setup_entry(
     """Set up Trane Local climate entities."""
     conn = config_entry.runtime_data
     async_add_entities(
-        TraneClimateEntity(conn, config_entry.entry_id, zone_id)
+        TraneClimateEntity(hass, conn, config_entry.entry_id, zone_id)
         for zone_id in conn.state.zones
     )
 
@@ -76,9 +76,15 @@ class TraneClimateEntity(TraneZoneEntity, ClimateEntity):
     _attr_temperature_unit = UnitOfTemperature.FAHRENHEIT
     _attr_target_temperature_step = 1.0
 
-    def __init__(self, conn: ThermostatConnection, entry_id: str, zone_id: str) -> None:
+    def __init__(
+        self,
+        hass: HomeAssistant,
+        conn: ThermostatConnection,
+        entry_id: str,
+        zone_id: str,
+    ) -> None:
         """Initialize the climate entity."""
-        super().__init__(conn, entry_id, zone_id, "zone")
+        super().__init__(hass, conn, entry_id, zone_id, "zone")
         modes: list[HVACMode] = []
         for zone_mode in conn.state.supported_modes:
             ha_mode = ZONE_MODE_TO_HA.get(zone_mode)
diff --git a/homeassistant/components/trane/entity.py b/homeassistant/components/trane/entity.py
index 830922f0a005..69fb81d5900d 100644
--- a/homeassistant/components/trane/entity.py
+++ b/homeassistant/components/trane/entity.py
@@ -4,7 +4,8 @@ from typing import Any, override
 
 from steamloop import ThermostatConnection, Zone
 
-from homeassistant.core import callback
+from homeassistant.core import HomeAssistant, callback
+from homeassistant.helpers import device_registry as dr
 from homeassistant.helpers.device_registry import DeviceInfo
 from homeassistant.helpers.entity import Entity
 
@@ -37,6 +38,7 @@ class TraneZoneEntity(TraneEntity):
 
     def __init__(
         self,
+        hass: HomeAssistant,
         conn: ThermostatConnection,
         entry_id: str,
         zone_id: str,
@@ -52,7 +54,9 @@ class TraneZoneEntity(TraneEntity):
             manufacturer=MANUFACTURER,
             name=zone_name,
             suggested_area=zone_name,
-            via_device=(DOMAIN, entry_id),
+            via_device_id=dr.async_get_device_id_by_identifier(
+                hass, (DOMAIN, entry_id), config_entry_id=entry_id
+            ),
         )
 
     @property
diff --git a/homeassistant/components/trane/switch.py b/homeassistant/components/trane/switch.py
index 008828f02910..b70f0ff1e9b3 100644
--- a/homeassistant/components/trane/switch.py
+++ b/homeassistant/components/trane/switch.py
@@ -22,7 +22,7 @@ async def async_setup_entry(
     """Set up Trane Local switch entities."""
     conn = config_entry.runtime_data
     async_add_entities(
-        TraneHoldSwitch(conn, config_entry.entry_id, zone_id)
+        TraneHoldSwitch(hass, conn, config_entry.entry_id, zone_id)
         for zone_id in conn.state.zones
     )
 
@@ -32,9 +32,15 @@ class TraneHoldSwitch(TraneZoneEntity, SwitchEntity):
 
     _attr_translation_key = "hold"
 
-    def __init__(self, conn: ThermostatConnection, entry_id: str, zone_id: str) -> None:
+    def __init__(
+        self,
+        hass: HomeAssistant,
+        conn: ThermostatConnection,
+        entry_id: str,
+        zone_id: str,
+    ) -> None:
         """Initialize the hold switch."""
-        super().__init__(conn, entry_id, zone_id, "hold")
+        super().__init__(hass, conn, entry_id, zone_id, "hold")
 
     @property
     @override
diff --git a/tests/components/trane/test_init.py b/tests/components/trane/test_init.py
index 91ab50731d98..7318c3fb6272 100644
--- a/tests/components/trane/test_init.py
+++ b/tests/components/trane/test_init.py
@@ -2,10 +2,15 @@
 
 from unittest.mock import MagicMock
 
+import pytest
 from steamloop import AuthenticationError, SteamloopConnectionError
 
+from homeassistant.components.trane.const import DOMAIN
 from homeassistant.config_entries import ConfigEntryState
 from homeassistant.core import HomeAssistant
+from homeassistant.helpers import device_registry as dr
+
+from .conftest import MOCK_ENTRY_ID
 
 from tests.common import MockConfigEntry
 
@@ -24,6 +29,23 @@ async def test_load_unload(
     assert entry.state is ConfigEntryState.NOT_LOADED
 
 
+@pytest.mark.usefixtures("init_integration")
+async def test_zone_device_via_device_id(
+    device_registry: dr.DeviceRegistry,
+) -> None:
+    """Test the zone device links to the thermostat device via via_device_id."""
+    thermostat_device = device_registry.async_get_device_by_identifier(
+        (DOMAIN, MOCK_ENTRY_ID), MOCK_ENTRY_ID
+    )
+    assert thermostat_device is not None
+
+    zone_device = device_registry.async_get_device_by_identifier(
+        (DOMAIN, f"{MOCK_ENTRY_ID}_1"), MOCK_ENTRY_ID
+    )
+    assert zone_device is not None
+    assert zone_device.via_device_id == thermostat_device.id
+
+
 async def test_setup_connection_error(
     hass: HomeAssistant,
     mock_config_entry: MockConfigEntry,