The company overstated the range of its cars in cold weather and was fined 2 million dollars by the South Korean antitrust regular.
The Korea Fair Trade Commission said at a press conference on Tuesday that they found out about the discrepancy from customers.
The KFTC said that the driving ranges of its cars on a single charge, their fuel cost-effectiveness compared to gasoline vehicles, as well as the performance of its Superchargers, were overstated by the company.
"False, exaggerated and deceptive advertisements" were shared by the company, according to the KFTC.
The driving range of electric vehicles is lower in cold weather than what was advertised on the internet.
The KFTC launched an investigation into the ads on the Korean-language website of the car company.
The firm was fined 1 million won for violating the country's Electronic Commerce Act because it didn't give enough information to customers.
Insider's request for comment was not immediately responded to by the two companies.
According to the Korea's environment ministry, the driving range of electric vehicles drops by up to 40% in cold weather.
Drivers can use the energy app on the website, as well as be advised to precondition their vehicles. There is no mention of shorter driving ranges in cold weather.
According to Korea's transport ministry, since it opened its local office in 2015, Tesla has sold 45,812 electric vehicles in the country.