Buick Regal horn continuously blowing and won't shut off while battery is functional on Buick Regal

Some Buick Regal owners report experiencing issues with a continuously blowing horn that won't shut off, which can be attributed to several potential causes. A common problem is a faulty horn relay, where a stuck relay keeps the horn activated when the battery is connected. Additionally, some owners may encounter short circuits in the horn button or wiring, leading to a continuous sound. While disconnecting the horn can provide a temporary solution, it does not resolve the underlying power draw issue, and removing the horn fuse or relay may be necessary. A blown fuse is often the culprit behind the horn malfunction, so checking the fuse is recommended. Owners may also find that problems with battery connections can trigger the horn to blow continuously, highlighting the importance of ensuring proper battery connections. Using diagnostic tools, such as a test light, can assist in identifying non-working horn issues, which are typically easy to address if located behind the front grill.