
– 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: Downhill Brake Control (DBC)
indicator light
This indicator light illuminates:
When the ignition switch is in the ON
position. The downhill brake control
indicator light illuminates for about 3
seconds and then goes off.
When you activate the system by
pressing the DBC button.
This indicator light blinks:
When Downhill ...
Hyundai Tucson (NX4) 2022-2026 Service Manual: Rear View Monitor (RVM)
Description and Operation
- Description
Back view camera will activate when the backup light is ON with the
ignition switch ON and the shift lever in the R position.This system is a
supplemental system that shows behind the vehicle through the H/UNIT or
the ECM (Reverse Display Room Mirror ...