
Motor vehicle registered mobile phone numbers can be modified through the Traffic Management 12123 APP. Here is some information about registering non-personal motor vehicles on 12123: Notes: The registered vehicle must be a small car or a small new energy vehicle. A user can only register up to 3 non-personal motor vehicles at the same time, and the same motor vehicle can be registered by a maximum of 3 non-owner users simultaneously. Registration Methods: The first method is to scan the QR code of the motor vehicle to be registered, take relevant photos as prompted, fill in detailed information, and then enter the SMS verification code of the motor vehicle owner to be registered. The second method only requires entering the SMS verification code of the vehicle owner to be registered, and the system will automatically approve it through background review.

I've done this a few times to update the mobile number linked to my vehicle. The easiest way is through the Traffic Management 12123 APP. After logging into your personal account, navigate to the vehicle management section, click on 'modify contact information', enter the new phone number, and the system will send a verification code to your old number for identity confirmation. Once verified, the new number will be updated. If you don't receive the SMS, it might be due to APP cache issues—just restart the app. The whole process is quick, usually done within ten minutes. It's advisable to ensure a stable internet connection before proceeding to avoid errors and delays. Also, don't forget to test if the new number can receive notifications, such as traffic violation alerts, after the update.

As someone who frequently handles vehicle-related matters, I believe the best approach is to process it offline for reliability. Bring your ID card and vehicle registration certificate to the nearby vehicle management office, explain your needs at the service counter, fill out a simple application form, and the staff will verify your information on-site to help you change the number. Although you might have to wait in line for about half an hour, the advantage is that you can confirm everything is correct on the spot, avoiding any unexpected issues that might arise online. Remember to choose a less busy time on weekdays to avoid long queues. If you're concerned, you can call ahead to inquire about the specific requirements at the vehicle management office to prevent unnecessary trips. A personal tip: After changing the number, take the opportunity to check if other bound contact information is correct.

In my experience, changing the mobile number is mainly achieved through the official platform. Open the Traffic Management 12123 official website or APP, log in, enter the personal center, select vehicle information, find the contact information modification option, upload ID card photos for verification, fill in the new number, confirm and save. The system will process it successfully. During the operation, pay attention to inputting the correct mobile number format without typos. The change will take effect within one day. Test to receive a reminder and it's OK. Keep it simple and straightforward, don't complicate it.

I think changing the mobile number for a motor vehicle isn't difficult, but it requires attention to detail. First, try the quick APP method: download the Traffic Management 12123 app, log in, find the corresponding menu, and follow the prompts step by step—upload documents, enter the new number, receive a verification code, and complete the process. If you encounter issues like no signal or unrecognized information, visit the vehicle management office in person with your ID and vehicle license for on-the-spot assistance, which is more reliable and avoids errors. Before making any changes, ensure your phone is charged to prevent interruptions. I recommend going in the morning when it's less crowded for higher efficiency. After completing the process, verify that you receive the SMS correctly—don't overlook this step.


