Explore Buick Century/Regal Automotive Air Horn. Order Buick Century/Regal Auto Horn Sound. Shop Buick Century/Regal Vehicle Horn Sound & Buick Century/Regal Horns. Maintaining the horn on your Buick Century or Regal is essential for ensuring road safety and communication. Regularly check the horn’s functionality and listen for any weak or inconsistent sounds, which often signal the need for a replacement. To extend its lifespan, keep electrical connections free of corrosion and ensure the horn is clear of debris. When choosing a new horn, consider the different types available—single-tone, dual-tone, and air horn variants, each offering unique sound qualities to match your preference. High-quality materials and proper installation are key for optimum performance; opt for durable horns designed for easy integration with your Buick's existing system to enhance your online shopping experience and driver confidence.