
Vehicle frame number can be checked in the Vehicle Identification Number section on the vehicle's registration certificate. The Vehicle Identification Number (VIN) consists of seventeen characters and is a unique set of numbers used to identify a vehicle's manufacturer, engine, chassis number, and other specifications. More information about the vehicle registration certificate is as follows: 1. The 'Motor Vehicle Registration Certificate' records many important details, including the license plate number, owner's name, model type, engine number and frame number, permitted load capacity or passenger count, initial registration date, and annual inspection records. The registration certificate is unique, meaning that for any given motor vehicle, there is only one set of engine and frame numbers and only one license plate number. 2. Article 17 of the 'Road Traffic Management Regulations' stipulates: 'Vehicles must pass inspection by the vehicle management authority and obtain license plates and a registration certificate before they are allowed on the road.' Therefore, possessing a 'Motor Vehicle Registration Certificate' is a prerequisite for a vehicle to be driven on the road. Driving without the registration certificate, whether due to not obtaining it or forgetting to carry it, constitutes a violation.

I often check the VIN (Vehicle Identification Number) myself, especially when buying a used car. The easiest way is to look directly at the car: there's a long alphanumeric code in the lower left corner of the windshield, and you can also find it on the metal frame under the passenger seat or the nameplate in the engine compartment. The first page of the vehicle license (fifth line) and the third page of the green registration book both display it in large font. If you need to check the vehicle's history online, many mini-programs allow you to enter the 17-digit alphanumeric code to access maintenance records and accident history. However, a reminder: legitimate platforms will require mobile verification codes—never casually share photos of it with strangers. After checking, verify that the manually stamped numbers match the actual vehicle locations. While odometer tampering by used car dealers is common, altering the VIN is illegal.

The VIN (Vehicle Identification Number) is essentially a car's ID number, which remains unchanged throughout the vehicle's lifetime. Last week when I helped a friend inspect a car, we checked it, and there are mainly three places to find it: a paper label attached at the bottom edge of the windshield, a metal plate with embossed numbers under the hood, and a label welded on the B-pillar of the passenger door frame. Additionally, the 'Vehicle Identification Code' field on the vehicle registration document is the VIN. If you need to check the vehicle's history, you can now search for 'VIN check' on Alipay, where several service providers offer this service for a fee of 30-50 yuan, providing details like factory configurations, recall records, and insurance claims. Remember to compare the embossed numbers on the physical vehicle with the system records, as some flood-damaged cars may have tampered with this information.

I usually use three methods to find the VIN: first, check the transparent label at the bottom left corner of the windshield; second, look at the second page of the vehicle registration certificate; third, check the vehicle information section on the insurance policy. For online query platforms, it is recommended to choose official channels, such as the 'Traffic Management 12123' APP for registered vehicle information, or the internal system of brand 4S stores. For third-party websites, it's best to use those registered with the traffic management bureau. Enter the complete 17-digit alphanumeric combination, paying special attention to avoid confusing the letter O with the number 0, otherwise the information retrieved will be completely incorrect. Before transferring ownership of a used car, always verify that the number on the dashboard sticker matches the chassis stamp.

A car owner who just went through the annual vehicle inspection tells you that checking the VIN involves two steps. First, locate the physical number: it's engraved on the driver's side A-pillar nameplate, near the OBD port under the steering wheel, or on the inner wall of the glove box—using a phone flashlight makes it clearly visible. Then, determine the purpose of the query: to check vehicle configurations, download 'Autohome' and enter the VIN; for accident records, use professional platforms like 'Che300'; for transfer registration, you must print the vehicle information sheet issued by the DMV. A key tip: the original factory stamp in the engine compartment and firewall locations is the hardest to forge, so prioritize checking these when selecting a car.


