BEIJING (Reuters) - Tesla will fix software in 77,650 China-made Model 3 and Model Y cars over safety hazards, China's market regulator said on Tuesday.

The action, due to software issues that may fail to display the monitored tyre pressure immediately after the vehicle starts, is described as a product recall under Chinese regulations, the regulator said. It was not immediately clear if drivers might need, or would be eligible, to return vehicles to Tesla for refunds.

The U.S. electric vehicle maker is also recalling 63 imported Model S and Model X cars in China over issues with the driver's frontal airbag.