The common faults of the Blind Spot Monitoring System (BSM) mainly include outdated software, water ingress in wiring harnesses, wiring issues in the rear bumper, dirty or damaged radar sensors, and abnormal ECU programs. When the system software is not updated in a timely manner, it may lead to functional failure, requiring module updates through official channels. If the wiring harness at the rear of the vehicle experiences water ingress in the connectors due to rainwater or accumulated water, it will cause signal transmission abnormalities and require professional inspection and repair. Internal wiring faults in the rear bumper will also affect system operation and need to be diagnosed and repaired by authorised technicians. Additionally, programming errors in the Electronic Control Unit (ECU) may misinterpret sensor signals, requiring specialized equipment to reset fault codes. If the warning light remains illuminated, immediate professional servicing is advised to prevent safety risks.
