In the years after the implementation of the three-guarantee law in the United States, car companies suffered huge losses by paying refunds to returns. 
before the implementation of the liability regulations for repair, replacement and return of Household Automobile products (referred to as the three-guarantee Law) in 2014, people in the industry predicted that the three-guarantee law would have a great impact on automobile manufacturers. However, over the past year since the implementation of the three-guarantee law, the reporter's survey of a number of 4S stores in Beijing, Sichuan and other places shows that the case of returning and changing cars according to the three-guarantee law is zero.
Most car dealers do not introduce the rights and interests of the three guarantees to consumers as required by the regulations.