1.Disconnect the negative (-) battery terminal.
2.Remove the heater and blower assembly.(Refer to Heater - "Heater Unit")
3.Loosen the mounting screws and remove the heater core cover (A).

4.Separate the heater core (A) from the heater unit.


5.Install in the reverse order of removal.
• Refill the cooling system with engine coolant.
• Do not interchange the inlet and outlet heater hoses and install the hose clamps securely.
• Make sure that there is no air leakage.
• Charge the system and test its performance.
Heater Unit
Evaporator CoreHyundai Tucson (NX4) 2022-2026 Owner's Manual: Highway Driving Assist
Operation
Highway Driving Assist display
The status of the Highway Driving Assist
operation appears in Driving Assist mode
on the instrument cluster. Refer to the
"View Modes" section in Chapter 4.
1 Indicates if there is a vehicle ahead
and the selected distance level
appears.
Highway Driving ...
Hyundai Tucson (NX4) 2022-2026 Service Manual: DC DC converter
- Description
Due to the considerably more frequent occurrence of starting
operations, the electrical load that occurs often leads to voltage dips
in the vehicle network.In order to stabilize the power supply for
certain voltage-sensitive electrical components, a DC/DC converter is
used i ...