Phase 2 Monitoring During Vehicle Operation

For the driver, the transition to phase 2 takes place when the seat belt buckle switch detects a fastened seat belt after approx. 15 sec or when covering the specified distance (>200 m). If the front passenger seat is detected as occupied, the front passenger switch must also detect that the passenger seat belt is fastened so as not to trigger a warning.

A visual and audible warning is triggered 15 sec after unbuckling the seat belt while driving. The gong is activated intermittently for maximum 90 sec or until the seat belt is fastened again. At the same time, the seat belt warning symbol is activated.

If a warning was given for more than 90 sec, the SBR function is not activated again until the seat belt has been fastened and unbuckled again.