Find Hyundai Body Control Sensors. Get Hyundai Internal Control Module Knock Sensor & Hyundai Body Control Module Replacement. Maintaining the Body Control Sensors in your Hyundai is vital for optimal vehicle performance, ensuring systems like lighting, power windows, and the security alarm function seamlessly. To extend their lifespan, keep your car's electrical systems clean and dry, and be vigilant for signs of failure such as inconsistent operation of interior features or unexplained battery drain. When selecting a replacement, opt for sensors that match your Hyundai's specific model and year to guarantee compatibility—choices range from lighting and window control to climate sensors, each with distinctive functionalities. Premium-quality materials and precise manufacturing are non-negotiables for durability and reliability. For DIY enthusiasts, ensure you follow the manufacturer's installation guide closely to avoid missteps that could compromise your car's electronic harmony.