
– 1st warning: If you open the driver's door after you open and then close the rear passenger and turn the engine off, the system provides warning by showing message on the cluster and giving voice instruction.
– 2nd warning
1)The system detects the indoor movement using the rear occupant alert sensor installed on the head lining when the driver gets off the vehicle and locks all the doors.
2)If any movement inside the vehicle is detected, horn and Hazard Warning Flasher are activated for 25 seconds and the mobile text message is sent.


1. Rear Occupant Alert Sensor
2. Integrated body control unit
3. Cluster (Message pop-up and Voice)
1.Disconnect the negative (-) battery terminal.
2.Remove the cover (A) by using a flat-tip screwdriver.

3.Disconnect the connector (A) and then remove the occupant alert sensor.

1.Install the occupant alert sensor.
2.Connect the negative (-) battery terminal.
Daytime Running Light (DRL)Hyundai Tucson (NX4) 2022-2026 Owner's Manual: Airbag non-inflation conditions
In certain low-speed collisions, the
airbags may not deploy. The airbags are
designed not to deploy in such cases
because they may not provide benefits
beyond the protection of the seat belts.
Front airbags are not designed to inflate
in rear collisions, because occupants
are moved ...
Hyundai Tucson (NX4) 2022-2026 Service Manual: Special Service Tools
- Special Tools
Tool (Number and name)IllustrationUse
09977-3R000Clutch bolt remover
Removal and installation of clutch bolt
...