Kalanick received a letter, dated November 19, 2014, from Senator Al Franken, Chairman of the United States Senate Judiciary Subcommittee on Privacy, Technology and the Law, over user privacy. In addition to a list of 10 questions, Franken stated that the company had a "troubling disregard for customer privacy" and that he was "especially troubled because there appears to be evidence of practices inconsistent with the policy [Uber spokesperson] Ms. Hourajian articulated" and that "it appears that on prior occasions your company [Uber] has condoned use of customers’ data for questionable purposes". Franken concluded his letter by asking for a response by December 15, 2014.[152]

Concerns have been raised about internal misuse of the company's data, in particular the ability of Uber staff to track the movements of its customers, known as "God Mode". In addition to the aforementioned use of the service to track journalists and politicians, a venture capitalist disclosed in 2011 that Uber staff were using the function recreationally and viewed being tracked by Uber as a positive reflection on the subject's character.[153] An individual who had interviewed for a job at Uber said that he was given unrestricted access to Uber's customer tracking function as part of the interview process, and that he retained that access for several hours after the interview ended.[154]