Uber is currently offering a sign up bonus of $400 dollars for new Uber drivers who sign up in San Francisco.  No more complicated guaranteed sign up bonus. You receive an extra $400 dollars on top of what you make for Uber.

Uber Sign up bonus Referral Invite Code:

7uddfa1rk

Uber Referral Bonus Url:

Click here to claim your Uber sign up bonus

This invite code is valid in all cities participating in the Uber sign up bonus. The amount of the sign up bonus is based on the city that you sign up for Uber.