Where is the OBU?
2 Answers
OBU: On-Board Unit. The OBU device is usually installed on the car's front windshield. Below is extended information on the correct installation method for the OBU: 1. Open the electronic tag, peel off the adhesive backing, and firmly attach the electronic tag to the upper part of the front windshield. 2. Press the Bluetooth button on the top of the electronic tag, insert the card, and the electronic tag screen will display that Bluetooth is turned on. 3. Turn on your phone's Bluetooth, enter the WeChat mini-program or the relevant app. Click on 'Apply for Card - Activate Electronic Tag', and Bluetooth will automatically sense and activate it. 4. Upload a front photo of the vehicle, and it will be ready to use.
I guess you're referring to that little ETC box in the car? The OBU device is usually installed near the rearview mirror on the windshield - that small black square with a solar panel. When installing, make sure to avoid the black ceramic dot areas, otherwise the signal might be affected. If you're installing it yourself, remember to first peel off the protective film from the double-sided tape on the back, align it with the windshield position, press firmly until you hear a click sound to secure it. However, many places are now promoting contactless payment systems where you can just link your license plate to pass through toll stations, so OBU devices might gradually become obsolete in the future.
