What is the reason why the Kia K3 turn signal has no sound?

3 Answers
LeIsabel
07/24/25 12:39am
It is due to a damaged flasher relay, which can be resolved by replacing it. The flasher relay, often referred to as the 'horse hoof' buzzer, produces a 'click-click-click' sound to alert the driver that the turn signal has been successfully activated and they can prepare to turn. If the combination switch does not automatically return after turning, this sound also serves as a reminder for the driver to turn off the turn signal. Here is some additional information: Turn Signal System: The turn signal system consists of a flasher relay (commonly known as the flasher), a turn signal switch, turn signal lights, and turn signal indicators. When the hazard warning signal switch is activated, all turn signal lights flash simultaneously to indicate that the vehicle is in an emergency situation and requests other vehicles to yield.
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VanAlexis
08/10/25 8:15pm
Driving a Kia K3 with no turn signal sound is a common issue—I encountered it myself when I owned this car. The main culprit is usually a faulty relay, which is hidden in the fuse box and responsible for producing the clicking sound to alert you that the signal is on. Relay failure often occurs due to aging or unstable voltage. Another frequent cause is a blown fuse; the turn signal fuse is typically located in the fuse box under the dashboard, and when it burns out, the circuit breaks, silencing the sound. Loose or corroded wiring connections can also be to blame, especially in humid environments. Diagnosis is simple: first, check if the turn signals light up normally. If the lights work but there’s no sound, it’s likely a relay issue. Don’t ignore this seemingly minor problem—it compromises driving safety, especially when turning, as you won’t know if the signals are functioning properly. Start by inspecting the fuse; if unsure, visit a trusted auto repair shop to check the electrical system. The K3 is prone to relay failures, so fixing it early saves hassle and money.
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VioletRose
09/24/25 2:24am
As someone who often repairs cars myself, I believe the key to turn signals not making sound lies in relay or circuit issues. The K3's relay is usually located in the driver's side fuse box, labeled as the turn signal component - try unplugging it to listen or test with a new one. Blown fuses are also common, so check if the corresponding position in the fuse box is melted and try replacing it. Wiring issues like loose connections, short circuits, or poor ground contact should also be checked - use a multimeter to test voltage or visually inspect for damaged wiring. Don't forget to check if the turn signal switch has poor contact. Remember to disconnect the battery negative terminal for safety before DIY repairs, but be aware that K3's circuitry is quite sensitive. If you lack experience, don't tamper recklessly as you might damage other components - it's more practical to consult a professional technician.
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