In order to report you must have GPS reception and Internet connection.
To report click on the report button 
Now the location and the time of the report are saved so if there's nobody in the car with you who can help you to send the report you can click on Later button to minimize the report
To complete this report just click on the report icon on the left.
Report types
Traffic Jam
(iPhone only) Hold the report button and slide left:
Here you can choose between:
- Moderate traffic
- Heavy traffic
- Standstill traffic
- Share details about the report
- Record a voice message
- Choose to report this event in your lane or in the other lane 
- Take a photo of the event
- Also send this report to group
Police
Here you can choose between:
- Visible police
- - Hidden police
- - Share details about the report
- - Record a voice message
- - Choose to report this event in your lane or in the other lane
- - Take a photo of the event
- - Also send this report to group