• 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: Repair procedures
- Adjustment
Glass Adjustment
• Check the glass run channel for damage or deterioration, and replace it if necessary.
1.Remove the rear door trim.(Refer to Rear Door - "Rear Door Trim")
2.Remove the plug hole(A).
3.Lower the glass by operating the power window switc ...
Hyundai Tucson (NX4) 2022-2026 Service Manual: Components and Components Location
- Components
1. Front oil seal2. E-CVVT cover plug 3. E-CVVT cover4. Variable Force Solenoid Valve (VFS)5. Timing chain cover 6. E-CVVT plug7. Timing chain cam to cam guide8. Timing chain9. Timing chain tensioner arm10. Timing chain guide11. Timing chain tensioner12. Balance shaft chain sprock ...