What are the reasons for the squeaking sound in the Volvo XC60 horn?
2 Answers
There are two reasons for the squeaking sound in the Volvo XC60 horn. Below are the reasons and related information for the squeaking sound in the Volvo XC60 horn: Reasons for the squeaking sound in the Volvo XC60 horn: The amplifier output power is relatively small, unable to handle the large dynamic peak signals in music; distortion caused by horn overload. Related information: Taking the 2021 Volvo XC60 as an example, it belongs to the mid-size SUV category, with body dimensions of: length 4688mm, width 1902mm, height 1658mm, and a wheelbase of 2865mm. The 2021 Volvo XC60 features a double-wishbone independent front suspension and a multi-link independent rear suspension. It is equipped with a 2.0L turbocharged engine, delivering a maximum horsepower of 190PS, a maximum power of 140kW, and a maximum torque of 300Nm, paired with an 8-speed automatic transmission.
The squeaking sound from the Volvo XC60's horn is mostly caused by contact oxidation or dust accumulation. The horn is exposed to harsh conditions under the hood, such as high humidity on rainy days or excessive dust, which can lead to short circuits and poor contact at the internal contacts, resulting in a squeaking noise. I've dealt with similar issues myself, and the most common causes are loose springs or deformed diaphragms in the horn unit, which cause abnormal vibrations. It's recommended to first check if the horn connectors are loose and clean off any dirt or rust. If the problem persists, it might be due to relay control failure or wiring wear, in which case it's best to have it inspected at a professional shop. Ignoring this issue could lead to complete horn failure, affecting driving safety. Regular maintenance, such as periodically cleaning the horn area to reduce dust buildup and avoiding direct high-pressure water jetting during car washes, can help extend its lifespan.
