Last Updated: March 22, 2026
Support
Get help with KDMLink and the N-Link device.
What is KDMLink?
KDMLink is a dedicated performance monitoring app for Hyundai N vehicles. It connects to the N-Link hardware device — a small Bluetooth Low Energy adapter that plugs into your vehicle's CAN bus port — to deliver real-time telemetry data directly to your phone.
With KDMLink, you can monitor over 84 live signals at up to 100Hz, including engine RPM, boost pressure, temperatures, tire pressures, N-Mode settings, and much more.
Supported Vehicles
Veloster N
2019 – 2022
Manual & DCT
Elantra N
2022 – 2024
Manual & DCT
Kona N
2022 – 2023
Manual & DCT
Setup Guide
Install the N-Link Device
Plug the N-Link device into the CAN bus port in your vehicle. Ensure the device is securely connected and powered.
Enable Bluetooth
Make sure Bluetooth is enabled on your iPhone. KDMLink uses Bluetooth Low Energy (BLE) to communicate with the N-Link device.
Open KDMLink & Scan
Launch the KDMLink app and tap the connect button. The app will scan for nearby N-Link devices.
Select & Connect
Select your N-Link device from the scan results. The app will establish a connection and begin receiving live telemetry data.
Frequently Asked Questions
My device isn't showing up
Make sure Bluetooth is enabled on your phone, the N-Link device is powered on and properly connected to the vehicle, and you are within range (approximately 10 meters). Try closing and reopening the app, or toggling Bluetooth off and on.
Data shows dashes / No live data
The N-Link device must be connected and the vehicle ignition must be turned on. Telemetry data is only available when the vehicle's ECU is active. Ensure the device is securely plugged into the CAN bus port.
Which data does the app show?
KDMLink displays a wide range of live vehicle data including engine RPM, vehicle speed, boost pressure, coolant temperature, oil temperature, intake air temperature, transmission fluid temperature, tire pressure (TPMS), fuel level, N-Mode settings, and more.
Does the app work without the N-Link device?
No. KDMLink requires the N-Link hardware device to receive vehicle telemetry data. The app cannot function as a standalone diagnostic tool — the N-Link device is the bridge between your vehicle and the app.
Does the app collect my data?
No. All data stays on your device. KDMLink does not transmit any data to servers, cloud services, or third parties. No personal information, analytics, or usage data is collected. See our Privacy Policy for full details.
Contact Support
Need help? Reach out to us at support@531dev.com.