How to change the mobile phone number of SMS notification for car violation?

1. Take the driving license to the vehicle management office or the vehicle management group of the traffic police brigade to make changes.

2. You can also log in the "Business Application" in the "Vehicle Management Office, Public Security Bureau Traffic Management Bureau" of each city. There is a "change contact information" in it. Fill in the license plate number, engine code, resident ID card, etc. See the previous contact number, you can modify it.