An Arizona Uber driver left passengers fearing for their lives after he raced across lanes, mounted a sidewalk, and allegedly hit speeds of up to 100mph.

Yuki Momohara and her boyfriend, Aaron, filmed their horrific ordeal after getting into the driver's car on December 19.

The couple were picked up in Midtown Phoenix by the male driver who quickly began driving erratically.

'Slow down,' Aaron can be heard telling the driver as he veered right to take a highway exit going 60mph, according to the speedometer seen in the video. 

As he approached, the driver nearly ran into the side wall before taking a right at Aaron's command after heading in the wrong direction. 

'Take a right, right!' Momohara can be heard saying. 

'Just stopped the car, dude,' Aaron demanded to no response from the driver, who kept going. 

The motorist then crashed onto the sidewalk narrowly avoiding a street sign after he tried to respond to a pop-up notification from his Uber app.

Yuki Momohara and her boyfriend, Aaron, got picked up in Midtown Phoenix by an unidentified driver on December 19. Within minutes, he was swerving through lanes, hitting sidewalks, and driving erratically video showed

'Holy s**t,' Momohara said. 'Stop the car, stop the car!' 

'Hit the f**king brakes, dude,' Aaron said. 'Hit the brakes.' 

They threatened to call the police as they begged him to turn right onto a side street and let them out. The driver kept going until they both started yelling at him. 

'I'm going to f**k you up, put that s**t in park,' Aaron told the driver. 

Momohara quickly exited the vehicle, while Aaron said: 'Are you alright, dude?'

The driver grunted as Momhara begged her boyfriend to get out of the man's vehicle. The man eventually mumbled a response to him as the video cut off. 

'The guy told him: "If you don’t get out of the vehicle, I’m going to hurt you." He started to press on the gas, so my boyfriend said: "Okay, I’ll get out,"' Momohara told AZ Family. 

But the peril continued after the couple tried to dial 911 and the driver sped off, picking up another couple of passengers minutes later. 

The driver eventually stopped after the couple begged him to pull over. But minutes later he picked up Eva Carlson and her friend and allegedly took them on an equally dangerous ride 

Eva Carlson and her friend claim that within minutes they began to realize something was wrong and alleged they watched the speedometer climb to 100mph before the driver almost rear-ended a car on the highway. 

'I had never been in a situation like that before. It was scary,' she told AZ Family.