
– 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 Service Manual: Engine Coolant Temperature Sensor (ECTS)
- Description
Water temperature sensor (WTS) is located in the engine coolant passage
of the cylinder head for detecting the engine coolant temperature.The
WTS uses a thermistor whose resistance changes with the temperature.The
electrical resistance of the WTS decreases as the temperature i ...
Hyundai Tucson (NX4) 2022-2026 Owner's Manual: Passenger and Rear Seat Belts –
3-point system with convertible
locking retractor
This type of seat belt combines both
an emergency locking retractor and an
automatic locking retractor. Convertible
retractor type seat belts are installed
in the rear seat positions to help
accommodate the installation of child
restraint systems.
A convertible retractor is also install ...