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 Saving'.

4.Follow the instructions on the screen.

Smart Key Diagnostic
Smart Key UnitHyundai Tucson (NX4) 2022-2026 Owner's Manual: Tilt/Telescopic Steering
Adjust the steering wheel toward your
chest, not toward your face. Make sure
you can see the instrument cluster
warning lights and gauges. After
adjusting, push the steering wheel up
and down to be in the locked position.
WARNING
Never adjust the steering wheel while
driving. This may ...
Hyundai Tucson (NX4) 2022-2026 Owner's Manual: Tires and Wheels
WARNING
Tire failure may cause loss of vehicle
control and result in a collision. To
reduce risk of serious injury or death:
Inspect your tires monthly for
proper inflation as well as wear
and damage.
The recommended cold tire
pressure for your vehicle can be
found in this man ...