Of course, Waze also works as a normal navigation app. There are large buttons on the screen you can tap to say that you see a hazard in the road, for example. It's also just as easy for you to report those things so other users can benefit.
These updates are reflected right there on your vehicle's display.
In short, its millions of users become reporters who can send updates to the map when they see a traffic jam, police officer, crash, or hazard. See What Is Waze and How Does It Work? for all the details. The super-popular, Google-owned Waze navigation app is extremely useful for up-to-the-minute information on things like traffic jams and crashes and vital details to know if you want to stay safe and save time on the road.