Automotive cruise control sensors monitor vehicle speed and distance, enabling adaptive cruise control and other ADAS features. These sensors require high precision (measurement accuracy ≤±0.5km/h) and reliability, operating in harsh undercar environments. Traditional ultrasonic welding introduces vibration that misaligns internal components, leading to inaccurate readings. DaokeDao laser welding offers a vibration-free, low-thermal-impact process with micron-level positioning accuracy (±0.008mm). It forms a strong bond (shear strength ≥22MPa) for sensor housings made of PC and PBT, maintaining dimensional accuracy (tolerance ≤±0.01mm). The hermetic seal (IP67 rating) protects internal components from moisture, dust, and road debris, ensuring stable performance. Our systems support fast cycle times (7-10 seconds per unit) and high-volume production (up to 135 units/hour), complying with IATF 16949 standards. By improving sensor accuracy and reliability, DaokeDao laser welding helps automakers enhance ADAS performance and driving safety.