A newly bought car. Maybe I said the wrong mobile phone number at the DMV, and I didn't send a text message if I violated the rules. . How and where to change it? Tangshan. thank you

1. You can bring your driving license to the vehicle management office or the traffic police brigade vehicle management office to replace it, or you can log in to the online vehicle management office and enter relevant vehicle information as required.

2. When registering a new car, you need to fill in the mobile phone number, which is opened by default and does not need to be handled separately. If the mobile phone number is changed, you can apply to the local vehicle management office for change.

3. 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. You can go in, see the previous contact number and modify it.