
The vehicle ICCID can be found in the central control screen of the car or queried at a 4S store. ICCID is an integrated circuit card identifier used for telematics functions, essentially a built-in SIM card in the car's infotainment system. It serves as a protective measure to prevent software piracy. When the owner activates the infotainment system, a unique identifier is generated based on the computer hardware and software information installed by the user. The digital encoding format is XXXXXX0MFSSYYGXXXXXXX. In this sequence, the first six digits represent the operator's code, which is also the unique identification number. The ICCID number is printed on the mobile SIM card and its holder. The ICCID is the unique identifier for the IC card. When activating the infotainment system, the car generates an identification code based on the hardware and software information of the system, consisting of 20 digits. In addition to the vehicle ICCID, the central control screen also contains the SN code. SN stands for Serial-Number, sometimes referred to as SerialNo, which is the product serial number. The product serial number is a concept introduced to verify the legitimate identity of a product, ensuring users' rights to genuine software and legal services. Each genuine product corresponds to only one set of serial numbers, primarily to prevent software piracy. Users must know the serial number to use the software. The SN code can be found on the vehicle frame. It is also known as the machine code, authentication code, or registration application code.

I've driven a connected sedan for five years, and the ICCID is the SIM card number of the car, with its location being quite tricky. My car hides it under a small cover on the left side of the dashboard below the steering wheel—prying open the plastic cover reveals the SIM card slot, and the number printed on the card is the ICCID. Don’t underestimate this number; it enables the car to connect to the internet for navigation updates, online radio, or hotspot sharing. If you can’t find it, don’t get discouraged—every car is designed differently. Some Toyotas tuck it in the inner seam of the glove box, while some BMWs allow you to check SIM info directly through the settings menu on the infotainment screen. Once, when my car’s connectivity dropped, I fumbled around and nearly damaged the panel, regretting not checking the manual first. In short, simple tasks are manageable, but leave the complicated stuff to the experts.

As someone who often helps neighbors with car repairs, I've seen quite a few cases of ICCID location changes. Generally, it's fixed on the SIM card, and the card slot position varies by vehicle: some SUVs have it in a small compartment under the glove box on the passenger side, while some compact cars require panel removal behind the center console. The ICCID is the unique identifier for connectivity—without it, the car's hotspot and OTA updates stop working. I suggest starting with the easiest checks, like flipping through the owner's manual where location diagrams are usually marked. Last time I helped a friend with a Ford, a loose card caused digital read failures, and replacing it with a new one solved the issue. Avoid tampering with circuits recklessly—professional repair shops have the right tools for safer handling. Brands like Mercedes or Geely differ significantly, so checking with the dealer beforehand saves hassle.

I prioritize vehicle safety, and the ICCID number is definitely not something to tamper with casually. Its location is usually concealed, such as in a corner of the dashboard or a small slot under the seat—the digits on the SIM card represent it. However, if you're not familiar with circuits, don't attempt DIY fixes, as it might trigger a short circuit or accidentally delete data. I always remind my friends to consult the manual or confirm with a 4S shop. The ICCID is used for connectivity features like emergency calls, and getting it wrong could delay assistance, which would be troublesome. A simple example: the manual often includes a location diagram—following it is the most reliable approach. Ensure your car's internet connection is stable, and don't risk major issues for minor gains. Safety comes first—don't follow online videos and tamper recklessly.


