1.Disconnect the negative (-) battery terminal.
2.Remove the inside rear view mirror cover (A).

3.Remove the rain sensor cover (A).

4.Separate the auto defogging sensor connector (A) and remove the auto defogging sensor (B).

5.Install in the reverse order of removal.
Ambient Sensor
HeaterHyundai Santa Cruz (NX4A OB) 2021-2025 Service Manual: Relay Box (Passenger Compartment)
    - Dscription and Operation
 ICU (Integrated Central Control Unit)
ICU (Integrated Central Control Unit) is an integrated model of smart 
junction block and central gateway. It performs the function of 
conventional "Smart junction block" and the function of communication 
medium of "Central Ga ...
   
Hyundai Santa Cruz (NX4A OB) 2021-2025 Service Manual: Power Door Mirror Actuator
    - Removal
 
    
   • When removing with a flat-tip screwdriver or remover, wrap protective tape around the tools to prevent damage to components. 
  • Put on gloves to prevent hand injuries. 
 1.Disconnect (-) battery terminal.
 2.Using a fastener remover (C), remove the mirror  ...