Toyota Highlander Secondary Collision Brake System Malfunction with Check Engine Light Issue on Toyota Highlander

Some Toyota Highlander owners report experiencing a Secondary Collision Brake System Malfunction accompanied by a Check Engine Light issue. This malfunction is indicated by a dashboard light similar to the Check Engine Light, which necessitates the use of a scan tool to retrieve specific codes from the vehicle's modules for diagnosis. Owners have noted that this malfunction can increase the risk of an accident, particularly if the system unexpectedly activates or fails to engage when necessary. The Secondary Collision Brake System is intended to automatically apply brakes to mitigate the severity of a secondary collision following an initial impact. In cases of collision, the vehicle's electronic stability control system is supposed to detect crucial information and apply brakes to prevent further incidents. Additionally, some owners have observed that after replacing the air intake hose and repairing broken lines, if the warning lights remain off, it suggests that the repairs were successful. It is essential for owners to have their vehicles examined by a mechanic to address these issues promptly for their safety on the road.