A center high mounted stop light (CHMSL) is the third brake light or eye-level brake light mounted higher than the left and right stop lights of a vehicle. The CHMSL is intended to keep other drivers, whose sight of the vehicle’s left and right stop lights is obstructed by interceding vehicles, aware of the slowing down or stopping of the vehicle. Also, in the event of a brake light failure, the CHMSL provides a redundant stop light signal.
at the Open Lighting Product Directory (OLPD)
