Lexus NX350h persistent left blind spot warning despite sensor replacement and delayed right blind spot activation on Lexus NX350h

Some Lexus NX350h owners report experiencing persistent left blind spot warnings despite having replaced the sensors and encountering delayed activation on the right side. These issues may stem from a lack of proper sensor calibration, leading to inaccurate readings and warnings. Additionally, some owners find that performing a system reset—by disconnecting the negative battery terminal—can sometimes resolve these persistent warning issues. Others have noted that updating the software of the blind spot monitoring system can help address ongoing concerns. Nearby electromagnetic interference or physical obstructions can also affect sensor performance, prompting some owners to check for potential interference. If problems persist, utilizing diagnostic tools like Techstream is recommended to identify malfunctions, as error messages may indicate temporary unavailability. Consulting a certified Lexus technician or dealership is advised for further diagnosis and resolution if these steps do not rectify the situation.