1.Disconnect the negative (-) battery terminal.
2.Remove the rear spoiler.(Refer to Body - "Rear Spoiler")
3.Remove the high mounted stop lamp assembly (A) after loosening screws (4EA).

1.Install the high mounted stop lamp.
2.Install the rear spoiler.
3.Connect the negative (-) battery terminal.
License Lamps
Luggage Room LampHyundai Tucson (NX4) 2022-2026 Owner's Manual: Forward Collision-Avoidance
Assist Operation
Forward Collision-Avoidance Assist may
warn and brake your vehicle depending
on the collision risk level.
Collision Warning
If Forward Collision-Avoidance Assist
judges that a collision may occur, the
message may appear on the instrument
cluster and an audible warning is heard
when:
...
Hyundai Tucson (NX4) 2022-2026 Service Manual: Description and Operation
- Description
Burglar Alarm State [B/A State]
B/A StateDescription
DISARM1)
In "DISARM" state, no vehicle start inhibition. So, when door, hood, or
Liftgate is opened, there is no alarm sound and flashing.
2) If the battery is disconnected while the state is not "ARM/ARMWAIT/ALARM/REARM" ...