
– 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) 2022-2025 Service Manual: Intake Actuator
- Description
The intake actuator is located at the blower unit. It regulates the
intake door by a signal from the control unit. Pressing the intake
selection switch will shift between recirculation and fresh air modes.
- Components
1. Intake actuator
- Inspection
1.Turn the i ...
Hyundai Tucson (NX4) 2022-2025 Service Manual: Components and Components Location
- Components
1. Front door trim2. Front door belt inside weatherstrip3. Front door quadrant inner cover4. Front door module5. Front door belt outside weatherstrip6. Front door frame molding7. Front door frame garnish8. Front door window glass run9. Front door side weatherstrip10. Front door bo ...