The NYT article implies Tesla is not acting like other car companies.

>Ford, General Motors and Toyota all said they did not have customers sign confidentiality agreements in exchange for fixing cars that have broken down.

>Joan Claybrook, a former head of N.H.T.S.A., said requiring customers to keep quiet about repairs aroused suspicion. “I don’t know why they’d do that,” she said. “It makes it seem like they want to cover something up.”

http://www.nytimes.com/2016/06/11/business/tesla-motors-mode...