The new in-app option is part of 180 Days of Change, an initiative to make "meaningful changes to the driving experience".
Uber is adding tipping in order to improve its relationship with drivers, who have recently felt like they've been wronged.
Starting Tuesday, Uber customers in Seattle, Minneapolis and Houston are able to tip their drivers - and the option will be available in all US cities by the end of July, the company announced in an e-mail to drivers on Tuesday.
In March, Uber executives outlined a series of improvements for drivers, including a new navigation system and fairer approach to reviewing driver performance.
But tipping isn't the only financial benefit drivers will now receive. Unlike taxis where you tip before you get out of the auto, Uber riders will have 30 days from the conclusion of their trip to add a tip. The feature has been rolled out in Seattle, Houston and Minneapolis first, according to the Uber website. Almost every other high level executive has left in recent months as well, and insiders appear more than ready to cash out their shares amid several high-profile scandals.
The expanded earnings opportunities are the first step in what Uber is billing as "180 days of change" for its USA drivers. In a blog post in April 2016, Uber called earnings through tips a kind of "uncertainty" for drivers. By contrast, rivals like Lyft - not to mention old-fashioned taxis - have long included the ability for riders to tip their drivers. Yesterday, Lyft announced that its drivers have earned over a quarter billion dollars in tips.
Coincidentally or not, the about-face comes just a week after Uber's CEO Travis Kalanick retreated on an indefinite leave of absence from the company.
Another change will shorten the time that passengers have to cancel a trip, from 5 to 2 minutes, before riders incur a $5 cancellation fee.