• The front impact sensors (FIS) are installed on the upper of the side panel in Front End Module (FEM). They are remote sensors that detect acceleration due to a collision at their mounting locations.
• The primary purpose of the Front Impact Sensor (FIS) is to provide an indication of a collition. The Front Impact Sensor(FIS) sends acceleration data to the SRSCM.

1. Front Impact Sensor (FIS) [RH]
2. Front Impact Sensor (FIS) [LH]
1.Disconnect the battery negative terminal.
• After disconnecting the cables, wait at least 3 minutes.
2.Remove the front impact sensor assembly (B) by loosening the bolt after disconnecting the connector (A).
Tightening torque :10.8 - 12.8 N.m (1.1 - 1.3 kgf.m, 8.0 - 9.4 lb-ft)

1.Install in the reverse of the removal.
2.After installing the FIS, confirm proper system operation.
• Switch ON the ignition. The SRS indicator light should turn on for about three-six seconds and then off.
SRS Control Module (SRSCM)
Side Impact Sensor (SIS)Hyundai Tucson (NX4) 2022-2026 Service Manual: 4WD Control System
- Adjustment
Description
The friction material inside the coupling will degrade over time.
Therefore, corresponding compensation values must be referenced and
entered after replacing the controller or the coupling.Compensation Requirement and Procedure
1.Simultaneous replacement of 4WD ECU ...
Hyundai Tucson (NX4) 2022-2026 Owner's Manual: Reverse Parking Collision-Avoidance Assist (PCA)
Reverse Parking Collision-Avoidance
Assist uses the wide-rear view camera
and rear ultrasonic sensors to help detect
pedestrians or objects when backing
up. The function may warn you or assist
you with braking to help reduce the
possibility of a collision when backing
up.
Information
...