1.Disconnect the negative ( - ) battery terminal.
2.Remove the front door trim.(Refer to Front Door - "Front Door Trim")
3.Loosen the mounting screws and remove the front door inside handle (A).

4.To install, reverse removal procedure.
• Make sure the door locks / unlocks and opens / closes properly.
Front Door Trim
Front Door Window GlassHyundai Tucson (NX4) 2022-2026 Service Manual: Smart Key
- Smart Key
Smart Key Code Saving
1.Connect the DLC cable of diagnostic tool to the data link connector
(16 pins) in driver side crash pad lower panel, turn the power on
diagnostic tool.
2.Select the 'S/W Management' and 'Car model'.
3.Select the 'Smart Key Unit' and 'Smart Key Code Sav ...
Hyundai Tucson (NX4) 2022-2026 Service Manual: Troubleshooting
- Troubleshooting
SymptomPossible causeRemedy
One lamp does not light(all exterior)Bulb burned outReplace bulb
Socket, wiring or ground faultyRepair if necessary
Head lamps do not lightBulb burned outReplace bulb
Ignition fuse (LOW:10A, HIGH:20A) blownCheck for short and replace fuse
Head la ...