Where is the OBU?

[ORyan]

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.

[AlexanderDella]

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.

[LaDeclan]

Bro, you must be looking for that ETC thing! I've got it stuck on my car, right in the most visible spot—dead center at the top of the windshield, just behind the rearview mirror and slightly to the right. This position doesn't block your view and gets enough sunlight to charge. If you're installing a new one, make sure to clean the glass thoroughly before sticking it on, and don't move the car for 48 hours after installation, or the adhesive might not set properly and it could fall off. Seriously, last year I almost ripped mine off, but then realized life without it sucks—waiting in those manual toll lanes on the highway is pure torture.

[VanCorbin]

The onboard OBU is that device used for swiping cards at highway toll stations. It's most commonly installed in the upper right corner on the inside of the windshield, but depending on the vehicle model, it can also be placed on the left corner of the dashboard or the top of the center console. Last week when I helped a friend install one, I found that his SUV's windshield had too steep an angle, so it could only be attached below the black dotted area. Fortunately, the new ETC devices now have higher sensitivity. In the past, they had to be installed in specific positions to be recognized, but now a slight deviation is fine, which is quite convenient.

[StWeston]

Regarding the installation of OBU devices in cars, I've seen three common locations: the most frequent is the top center of the front windshield, some are installed near the A-pillar on the passenger side, or simply placed on the dashboard using a bracket. The two cars in my family have them installed in different positions, the key is to find the spot with the best solar charging effect. However, the newly released ETC devices now come with Bluetooth functionality, allowing activation directly via smartphone, unlike in the past when you had to visit a bank branch and queue up for activation.

[CameronAnn]

You're probably referring to the ETC onboard unit (OBU). The one in my car is attached to the windshield right in front of the driver's seat, within easy reach. There are three key points to note during installation: avoid heat-emitting areas (like defroster vents), steer clear of the rain sensor zone, and ensure the device is level without tilting. Once when I repositioned it, the mechanic spent quite some time adjusting with a level, saying that a tilt exceeding 15 degrees might affect signal reception. By the way, you can now apply for self-installation via WeChat mini-programs – the package includes a positioning sticker with measurement markings, making DIY installation quite convenient.