If you do not want to use the digital key (smartphone key and card key), disable the function temporarily. Have the smart key in the vehicle to change the settings.
From the Settings menu, go to Setup > Vehicle > Digital Key > Enabled Digital Key (deselect) in the infotainment system.
Hyundai Tucson (NX4) 2022-2025 Service Manual: Lumber Support System
- Removal
1.Disconnect the negative (-) battery terminal.
2.Remove the front seat back cover.(Refer to Body - "Front Seat Back Cover")
3.Disconnect motor connecotor (A).
4.Remove the front side airbag (A).
5.Remove the lumber support cable bracket after loosening mounting screws.
6.R ...
Hyundai Tucson (NX4) 2022-2025 Service Manual: Relay Box (Engine Compartment)
- Inspection
Power Relay (Type A)
1.There should be continuity between the No.30 and No.87 terminals
when power and ground are connected to the No.85 and No.86 terminals.
2.There should be no continuity between the No.30 and No.87 terminals when power is disconnected.[Engine room relay box]
...