According to the terms and conditions of uber services you are not allowed to rate your driver, but your driver can rate you. If you get low rating or bad rating Uber will refuse you to gave you the taxi ride.
So to make sure that in future you are eligible to get their service when needed it is good to check your Uber rating. It is now much more easier than the previous to check the rating. Earlier it is hidden in the app and you will have to go through various hacks to check your rating but now it is clearly visible in the app when you signed in.
If you fin d any difficulty to find your rating than an another method is there to check your rating is to go to the Uber’s official website.