Answer
- When the telematics device first powers on, a seat belt value of -1 indicates the value is unknown and prevents the Fleet Management Application from creating an ongoing Seat Belt Unbuckled exception until the seat belt is re-detected.
- On every ignition change event, if the seatbelt was previously in a buckled or unbuckled state, the seat belt status is set to Unknown.
- Setting the seat belt data to unknown ensures that the data from previous trips is not carried over to the present trip.
Additional Notes
This information is available at Firmware Product Guide underSeat Belt Functionality.