Tesla’s Model 3 and Model Y electric vehicles had previously exposed the problem of heat pump failure in the United States. Many users complained that the car could not be heated by a heat pump in an extremely cold environment. Some 2020-2021 Model 3s and Model Ys still have issues, despite Tesla’s previous updates with defective sensors.
The problem occurred because the heat pump air intake froze, causing abnormal sensor data and shutting down the entire system. According to the latest report, Tesla today pushed the 2021.44.30.7 OTA update for the vehicle to solve this problem.
The update log stated that this version of the system allows the heat pump to start smoothly at lower temperatures. Users can turn on the heating function of the vehicle through the mobile app 30-60 minutes before departure to warm up. However, heat pump heating may still fail if exposed to -15°C. Tesla is advising owners to park their cars in as warm a place as possible to warm up the vehicle to address this issue.