1.Turn ignition switch OFF and disconnect the battery negative (-) terminal.
2.Remove the fuse box cover.
3.Remove the starter relay (A).

4.Check for continuity between the terminals (30 and 87) using an ohmmeter.
| Terminal | Resistance | Measure | ||
| 30 - 87 | 1 MΩ or higher | If there is continuity between the terminals, replace the relay. | ||

5.Apply 12V to the terminal 85 and ground to the terminal 86 and then check for continuity between the terminals (30 and 87).
| Terminal | Resistance | Measure | ||
| 30 - 87 | 1Ω or less | If there is no continuity between the terminals, replace the relay. | ||

6.Install the starter relay.
7. Install the fuse box cover.
Starter
Ignition SystemHyundai Tucson (NX4) 2022-2025 Owner's Manual: Forward Collision-Avoidance
Assist Operation
Basic function
Forward Collision-Avoidance Assist may
warn and brake your vehicle depending
on the collision risk level.
Collision Warning
If Forward Collision-Avoidance Assist
judges that a collision may occur, the
message may appear on the instrument
cluster and an audible warning i ...
Hyundai Tucson (NX4) 2022-2025 Owner's Manual: Automatic Climate Control
System
To defog inside windshield
1. Select the desired fan speed.
2. Select the desired temperature.
3. Press the defrost button ().
4. The air conditioning turns on
according to the detected ambient
temperature, the outside (fresh) air
position and higher fan speed are
selected automatica ...