A functioning heating system is essential in winter – not only for comfort but also for safety. However, Tesla drivers, particularly those with certain Model Y vehicles, repeatedly report sudden heating failures.
What's behind it – and how do you fix the problem?
Heat pump fault in the Tesla Model Y
During the colder months, some Tesla drivers notice that their Model Y suddenly stops blowing warm air. The ventilation system is running, but the interior remains cold – even with the heating on full blast. Vehicles built at the Tesla factory in Grünheide seem to be particularly affected.
The following symptoms are typical:
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Cold air despite active heating
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Message on the vehicle display such as "Check climate system"
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No audible compressor noise
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Fogged or icy windows while driving
The cause often lies with the heat pump – more precisely, with the refrigerant compressor or the 4-way valve. Both components have proven prone to failure in certain production runs, especially during prolonged periods of frost.
The solution: First aid and lasting relief
Anyone who suddenly finds themselves without heating in sub-zero temperatures needs quick help. In many cases, simple measures are all it takes:
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Soft reset carry outPress the brake pedal and hold down both scroll wheels on the steering wheel – the system will restart after about 10 seconds.
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Turn the heating off and then on again: Set the climate control to "Off", then reactivate it.
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Use app preconditioningUse the Tesla app to preheat the vehicle, ideally 10-15 minutes before starting your journey.
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Activate windshield de-icer: This mode requests maximum heating power – often a trick to get the heat pump running.
If that's not enough, the only option left is to go to the service center. An error code that appears, such as... BHI_a180 This usually clearly indicates a defective compressor – in this case, replacement is the only solution. Good to know: Such repairs are generally covered by the vehicle warranty.
To avoid future failures, the following measures are recommended:
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Keep your software up to date – since version 2025.12, Tesla has been specifically working on the heating logic.
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Regularly check the air intakes and clear them of snow or ice.
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Change your cabin air filters on time – clogged filters increase the pressure in the air conditioning system and put unnecessary strain on the pump. Activated carbon cabin air filter Tesla air filters, for example, can be quickly replaced by the user and simultaneously provide fresh air inside the vehicle.
A functioning heating system is not only about comfort, but also safety – especially in winter road conditions.
Are you also experiencing problems with the heating in your Tesla? Feel free to share your experiences and tips in the comments.
