Electric car company Tesla will recall more than 285,000 autonomous cars from the Chinese market after an investigation found that driver assistance software could cause collisions.

Tesla collects 285,000 cars upon detection of collision risk

This is the latest of the problems of self-driving innovative cars under investigation by Chinese authorities, after several fatal accidents in recent months.

“Due to problems with the speed control system (…), the driver can easily trigger it by mistake”, noted authorities in their report, which “may cause a sudden increase in speed and in extreme cases , cause a collision”.

The car manufacturer also had to face numerous complaints from Chinese customers on social media, who questioned the quality and service problems.

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It all culminated in a protest at the Shanghai Motor Show, widely publicized by the media and social networks, of a customer who revealed that she nearly died from a failure in her vehicle’s braking system.

The speed control system, which is designed to “control the vehicle’s speed to follow the surrounding traffic”, is an important part of the assisted driving function, says Tesla’s website.

The American company, that is allowed, which is rare in China, to build in Shanghai without a Chinese partner, is very popular in China, where it sells a quarter of its vehicles.

The announcement of the recall of the automobiles on Friday caused a drop of almost 8% in Tesla’s shares in the United States.