diff --git a/homeassistant/components/tessie/climate.py b/homeassistant/components/tessie/climate.py
index 8eb69d619ff..c856e8211cc 100644
--- a/homeassistant/components/tessie/climate.py
+++ b/homeassistant/components/tessie/climate.py
@@ -11,6 +11,7 @@ from tessie_api import (
 )
 
 from homeassistant.components.climate import (
+    ATTR_HVAC_MODE,
     ClimateEntity,
     ClimateEntityFeature,
     HVACMode,
@@ -112,9 +113,12 @@ class TessieClimateEntity(TessieEntity, ClimateEntity):
 
     async def async_set_temperature(self, **kwargs: Any) -> None:
         """Set the climate temperature."""
-        temp = kwargs[ATTR_TEMPERATURE]
-        await self.run(set_temperature, temperature=temp)
-        self.set(("climate_state_driver_temp_setting", temp))
+        if mode := kwargs.get(ATTR_HVAC_MODE):
+            await self.async_set_hvac_mode(mode)
+
+        if temp := kwargs.get(ATTR_TEMPERATURE):
+            await self.run(set_temperature, temperature=temp)
+            self.set(("climate_state_driver_temp_setting", temp))
 
     async def async_set_hvac_mode(self, hvac_mode: HVACMode) -> None:
         """Set the climate mode and state."""
diff --git a/tests/components/tessie/test_climate.py b/tests/components/tessie/test_climate.py
index cbb6b7ad09e..6d1c8c220d1 100644
--- a/tests/components/tessie/test_climate.py
+++ b/tests/components/tessie/test_climate.py
@@ -54,14 +54,22 @@ async def test_climate(
     with patch(
         "homeassistant.components.tessie.climate.set_temperature",
         return_value=TEST_RESPONSE,
-    ) as mock_set:
+    ) as mock_set, patch(
+        "homeassistant.components.tessie.climate.start_climate_preconditioning",
+        return_value=TEST_RESPONSE,
+    ) as mock_set2:
         await hass.services.async_call(
             CLIMATE_DOMAIN,
             SERVICE_SET_TEMPERATURE,
-            {ATTR_ENTITY_ID: [entity_id], ATTR_TEMPERATURE: 20},
+            {
+                ATTR_ENTITY_ID: [entity_id],
+                ATTR_HVAC_MODE: HVACMode.HEAT_COOL,
+                ATTR_TEMPERATURE: 20,
+            },
             blocking=True,
         )
         mock_set.assert_called_once()
+        mock_set2.assert_called_once()
     state = hass.states.get(entity_id)
     assert state.attributes[ATTR_TEMPERATURE] == 20