
1. Horn switch
2. Horn relay
3. Horn (Low pitch)
4. Horn (High pitch)
5. Clock spring
1.Remove the front bumper assembly.(Refer to Body - "Front Bumper Assembly")
2.Remove the bolts and disconnect the horn connectors (C), then remove the high pitch horn (B) and low pitch horn (A).


1.Install the horns after connecting the horn connectors.
2.Install the front bumper cover.
1.Remove the horn relay (A) from the engine room relay box.
2.There should be continuity between the No.30 and No.87 terminals when power and ground are connected to the No.85 and No.86 terminals.
3.There should be no continuity between the No.30 and No.87 terminals when power is disconnected.



Hyundai Tucson (NX4) 2022-2026 Service Manual: Knock Sensor (KS)
- Description
Knocking is a phenomenon characterized by undesirable vibration and
noise and can cause engine damage. Knock Sensor (KS) is installed on the
cylinder block and senses engine knocking.When knocking occurs, the
vibration from the cylinder block is applied as pressure to the
pi ...
Hyundai Tucson (NX4) 2022-2026 Service Manual: General Information
- General Information
The supplemental restraint system (SRS) is designed to supplement the
seat belt to help reduce the risk or severity of injury to the driver
and passenger by activating and deploying the driver, passenger, side
airbag and belt pretensioner in certain frontal or side col ...