1.Remove the outside rear view mirror.(Refer to Mirror - "Outside Rear Viwe Mirror")
2.Pull down the front door window glass to the lowest level by pressing the power window glass switch.
3.Remove the front door belt outside weatherstrip (A).

4.To install, reverse removal procedure.
• Replace any damaged clips (or pin-type retainers).
Front Door Outside Handle
Front Door Belt Inside WeatherstripHyundai 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]
...
Hyundai Tucson (NX4) 2022-2025 Owner's Manual: Air Ventilation Seat
The air ventilation seats cool the front
seats by blowing air through small vent
holes on the surface of the seat cushions
and seatbacks.
When air ventilation is not desired, keep
the switches in the OFF position.
While the engine is running, press the
switch to cool the driver's seat ...