OBx Device · Setup Guide · Fleet Managers
Get your fleet connected
in three simple phases
Follow the steps below to create your OneRoad account, register your vehicles, and pair each OBx device. The whole process takes around 15–20 minutes.
Phase 1 of 3
Create your OneRoad account
Completed at oneroad.io in your browser · approx. 5 minutes
- 1
Create your OneRoad account — in your browser
Open oneroad.io in your web browser on a desktop or laptop computer. The sign up process must be completed in a browser — it cannot be done in the mobile app. Click the button below to go directly to the sign up page. When prompted, select Fleet Owner as your user type — the app will guide you through the remaining setup steps.
👆 This step is critical. Selecting Fleet Owner unlocks fleet management, vehicle registration, and OBx device pairing. Do not select Driver or Owner Operator.Create your OneRoad account - 2
Enter your company details
Fill in your company's Trading Name and ABN, along with your Company Email Address and Company Phone Number. Tap Continue when done.
- 3
Licence details — for Fleet Owners who also drive
You will be asked whether you would like to add your driver's licence details. This is only required if you, as the Fleet Owner, also intend to drive vehicles within your fleet. If you will be driving, complete the licence details. If not, select No to skip this step.
ℹ️ Licence details can be added or updated at any time from your account settings.
Phase 2 of 3
Register your vehicles in the portal
Completed in the OneRoad web dashboard · must be done before installing any devices
- 1
Log in to your OneRoad dashboard
Go to oneroad.io and sign in using your mobile number. Enter the SMS verification code to access your dashboard.
- 2
Navigate to Fleet → Assets
In the top navigation bar, click Fleet. On the Fleet page, click the Assets tab.
- 3
Click "+ Add asset"
In the top-right corner of the Assets tab, click the blue + Add asset button. Enter your vehicle's registration number to search for it.
- 4
Confirm and add to your fleet
OneRoad retrieves the vehicle's registration details automatically. Review the Vehicle found screen — plate number, body type, model, and registration expiry. If correct, tap Add asset to Fleet.
💡 Add all vehicles receiving an OBx device before moving to Phase 3.
Phase 3 of 3
Install and pair your OBx devices
Physical installation + app pairing · repeat for each vehicle in your fleet
- 1 Park the vehicle safely. The vehicle must be stationary and securely parked before installation begins. Do not attempt to install the OBx while the vehicle is in motion or in operation.
- 2 Check the vehicle is in good working order. Start the vehicle and confirm there are no dashboard warning lights illuminated and that all functions — headlamps, indicators, wipers — are operating correctly. If any faults are present, do not proceed until they are resolved. This ensures that any issues appearing after installation can be clearly attributed to the device.
Step-by-step hardware installation
📎 Vehicle adapter guides — Some vehicles require an adapter to connect the OBx to the diagnostic port. Download the relevant guide for your vehicle type before beginning installation:
If you are unsure which adapter your vehicle requires, contact [email protected] before proceeding.
Locate the OBD-II port
The OBD-II diagnostic port is typically found on the driver's side of the dashboard or instrument panel. In heavy vehicles it may be on the dash face near the centre console. Check your vehicle's manual if unsure.
Plug in the OBx device
With the ignition off, firmly plug the OBx into the OBD-II port. The connector is keyed — it only inserts one way. Push until you feel it click securely into place.
Turn ignition on
Turn the ignition to the ON position to power the OBx. The engine does not need to be running — ignition-on is sufficient to supply power to the port and activate the device.
Confirm the device is active
Once powered, the OBx will initialise and its indicator light will activate. A flashing blue light confirms the device is live and ready to pair. You can now proceed to pairing in the OneRoad app.
Secure the device with a cable tie
Once the OBx is paired and confirmed active, use a cable tie to secure the device and any excess cabling neatly under the dashboard. Ensure the device and cable are kept clear of all vehicle controls — including gas, brake and clutch pedals, the steering column, and airbag panels. A loose or obstructing device is a safety hazard.
🔒 Device assignment is permanent. Once an OBx has been paired and confirmed to a vehicle, it must remain in that vehicle. Devices cannot be moved between vehicles. Doing so may cause unexpected interactions with the vehicle's engine management system and will void the device pairing.
For best initial GPS lock, ensure the vehicle is parked in an open area with a clear view of the sky during first activation. Keep the device clear of water, liquids, and excessive dust — failure to do so may cause the unit to malfunction or short-circuit.
Pairing via the OneRoad app
- 1
Log in to the OneRoad mobile app
Download and open the OneRoad app on your iOS or Android device. Sign in using the mobile number you registered with.
- 2
Open your Profile
From the home screen, tap Profile in the bottom-right corner of the screen.
- 3
Open the Options Menu and select Devices
Tap the Options Menu — the icon showing four small squares. Scroll down until you find Devices and tap it.
- 4
Select "Add new device to your fleet"
In the Devices screen, tap Add new device to your fleet. The app will begin searching for nearby powered OBx units.
- 5
Select the correct vehicle registration
Once the app detects the device, it will display the registration details. Select the correct registration from the list and tap Continue.
- 6
Wait for pairing to complete
The device will pair automatically. Keep the app open and your phone near the vehicle. Once complete, the screen confirms the device has been successfully paired to your fleet.
✅ The vehicle is now live and transmitting data to your OneRoad dashboard. - 7
Repeat for each vehicle in your fleet
Move to the next vehicle and repeat the hardware installation steps and pairing steps until all OBx devices are connected. All paired devices will appear under Assets in your dashboard.
Your fleet is connected
All paired vehicles are now live in the OneRoad platform. Fleet-wide visibility is available immediately from your dashboard under Assets. To add new vehicles in future, register them in the portal first, then repeat Phase 3.

