Tesla recalling 27,000 cars because they're not hot enough

Tesla‘s cars are hot sellers, but some of them aren’t hot enough. 

Tesla’s heat pump is designed to be a more efficient way to heat a vehicle’s cabin.
(Tesla)

The make is recalling 27,000 vehicles because their energy-efficient heat pumps have an issue that makes them ineffective at defrosting the windows, which could be a safety hazard.

The Tesla Model 3 is among the cars that use the heat pump.
(Tesla)

U.S. safety regulators said that a software error can cause a valve in the vehicles’ heat pumps to open unintentionally, trapping refrigerant inside the evaporator and causing the compressor to go into a fail-safe mode, which can reduce the temperature in the cabin when its below 14 degrees outside, reducing defrosting performance.

Some owners of the cars have been posting about the issue on social media in recent weeks.

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The Associated Press contributed to this report