Uber contends in a court case it is "fit" to operate in London, after regulators last year stripped it of a license that could halt its presence in the British capital.
The regulatory agency Transport for London accused Uber last year of showing a "lack of corporate responsibility" in relation to "public safety and security," and failed to renew a license that would allow the U.S. ride-hailing service to operate in London.
Uber has been allowed to operate in London since it appealed the ban in October. Chief Executive Dara Khosrowshahi has visited London and met with the regulators to try and placate concerns, but the agency has not changed its stance.
Uber was headed to Westminster Magistrates' Court on Monday to kick off an appeal to overturn the ban. The hearing is likely to last several days.
Uber has agreed to report serious incidents to the police rather than leaving it up to riders and drivers to do so. In January, it introduced a mandatory six-hour safety break for drivers after 10 hours of work.