What is the function of a seat belt reminder system in passenger vehicles?

The function of a seat belt reminder system in passenger vehicles is primarily to alert passengers to buckle their seat belts. This system is designed to enhance safety by reminding occupants to engage their seat belts before the vehicle moves. By providing an audible or visual warning, it encourages compliance with seat belt laws and promotes the use of seat belts, which can significantly reduce the risk of injury or death in the event of an accident.

The effectiveness of a seat belt reminder system lies in its role as a safety feature, ensuring that all passengers are aware of the importance of buckling up. This can lead to higher seat belt usage rates, further reinforcing safe driving practices.