Hyundai Tucson: Smart Key System
Component Location (1)

- Integrated body control unit (IBU)
- Interior antenna 2
- Door outside handle
- Interior antenna 1
- Front antenna
- Buzzer
- Door antenna
Component Location (2)


- Tailgate antenna
- Rear bumper antenna
- Tailgate open switch
Specifications
Smart Key Unit (IBU)

Smart Key (FOB Key)

Antenna


- Smart Key System - Inspection
- Smart Key Code Saving
- Interior Antenna
- Exterior Bumper Antenna
- Door Outside Handle
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Smart Key System - Inspection
Self Diagnosis With Scan Tool
It will be able to diagnose defects of SMART KEY system with diagnostic tool
quickly, diagnostic tool can operates actuator
forcefully, input/output value monitoring and self diagnosis.
The following three feature
Smart Key Code Saving
Smart
Connect the DLC cable of diagnostic tool to the data link connector (16
pins) in driver side crash pad lower panel, turn the
power on diagnostic tool.
Select the 'S/W Management' and 'Car model'.
Select the
Interior Antenna
Interior 1 Antenna
Take care not to scratch the crash pad and related parts.
Disconnect the negative (-) battery terminal.
Remove the ecall unit.
(Refer to Emergency Call system - "Emergency Call (eCall) Unit")
Remove the inter
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Button Engine Start System
Description
The System offers the following features :
Changing the state of engine ignition and power by using the start
button.
Controlling external relays for ACC / IGN1 / IGN2 terminal switching and
STARTER, without use of mechanical
Power Relay Assembly (PRA) - Removal
Removal
Remove the PRA assembly.
(Refer to 48V Battery System - "Power Relay Assembly (PRA)")
Remove the PRA cover.
Remove the mounting bolts and remove the power relay busbar (A).
Disconnect the main relay connector
Information
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- Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Owner's Manual
- Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Workshop Manual