The Uber auto, a Volvo XC90 sport utility, had been equipped with the company's sensing system and was in self-driving mode with a human backup driver at the wheel when it struck Elaine Herzberg, 49, who was walking with her bicycle on the street.
The accident with Uber's driverless auto is the first known fatality with a vehicle in full autonomous mode. The company now does not have a permit to test in California, but the spokeswoman said Uber is in discussions with state regulators to obtain a license to operate in San Francisco and Sacramento, although it does not have a timeline.
"We're committed to self-driving technology, and we look forward to returning to public roads in the near future", the company said in a statement.
As part of that process, Uber hired Christopher Hart, a former chairman of the National Transportation Safety Board, to review its self-driving auto program.
The tech company announced on Wednesday it will lay off 300 Uber workers in Arizona.
Uber went on to pioneer its self-driving semi-truck program in the state, rolling out a fleet of autonomous big rigs to move freight across the state.
Uber boss Dara Khosrowshahi said Uber was likely to remain in the red as it reinvested in its food-delivery and new bike-renting services.
Venezuela expels top USA diplomat for 'conspiring' against government
Maduro said the expulsions were "in defense of the dignity of the homeland", and received a standing ovation from the crowd. Turnout for the election was under 50 percent, compared to 80 percent in 2013.
Uber will end its self-driving auto operation in Arizona, the company announced Wednesday.
A number of companies in the United States, including Uber, are testing Autonomous cars.
Whenever real-world testing resumes, it intends "to drive in a much more limited way to test specific use cases" so it can "continually hone the safety aspects of our software and operating procedures".
Meyhofer likewise showed that Uber would be altering how it evaluated its driverless cars and trucks.
Arizona had been widely regarded as the most welcoming state for self-driving vehicles. Arizona has no reporting requirements. The company has said that in the near term it wants to keep its autonomous testing near its engineering offices to help avoid future incidents.
The National Transportation Safety Board is still investigating the deadly Uber incident in Tempe. The car's software first classified her as an unknown object, then a vehicle, and then a bicycle.