Model 3 and Model Y: Tesla fixes heat pump problems with an update

Teslas were recently impacted by a problem with the heat pump which was not allowing it to properly heat the cabin of cars in cold regions, but a fix is ​​being deployed.

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Last week, we reported that Tesla heat pumps were the focus of an investigation in Canada after many users had the unpleasant surprise of noticing a significant lack of heat in the living space in very cold weather. Indeed, the vehicle’s heat pump is supposed to be able to heat the car properly, but the HVAC system that controls ventilation, heating and air conditioning seems to be failing on many vehicles, including the Model 3 and Model Y.

Drivers are therefore not able to properly clear the snow from their windshield, and the fogging caused by the breathing of passengers does not help. Despite software updates to attempt to correct the problem, Tesla owners around the world continue to experience heat pump failures due to extremely low temperatures, including in Canada.

Also to be read : Tesla recalls nearly 500,000 Model 3 and S for serious technical problems

Elon Musk promises to fix the problem with a new update

On Twitter, Tesla CEO Elon Musk announced that a software patch « to recalibrate the heat pump expansion valve is being deployed “. Musk didn’t specify which version number it will be, but it’s likely to be the version 2021.44.30.8 which has been deployed in most cars.

Correcting this heat pump failure was a priority for Tesla, since Transport Canada had previously stated that this problem “ could affect the demisting/defrosting of the windshield and therefore the driver’s visibility “.

Not all heat pumps seemed affected, since some users living in very cold regions did not encounter this problem. Indeed, according to Tesla Owners Online, “ the heat pump system has the ability to operate very well, even at temperatures below -30°C, because there are two loops that use the compression and expansion of the refrigerant (going from liquid to gas to liquid) and these loops can produce heat, even in extreme cold. The Alaska team tested this system in extreme cold, and it works well. So basically the heat pump can and will work in our climates “.

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