How should a driver sit for a seat belt to function effectively?

For a seat belt to function effectively, a driver should sit upright with their back firmly against the seat. This position allows the seat belt to properly align with the body, ensuring it can restrain the occupant effectively in the event of a collision. When seated correctly, the belt's lap portion fits low across the hips, and the shoulder belt rests across the chest, minimizing the risk of injury.

Sitting upright also helps the driver maintain control over the vehicle and improves visibility of the road and surroundings. If the driver leans forward, slouches to one side, or reclines back, it can alter the way the seat belt engages with their body, potentially leading to serious injury during an accident. Proper seating posture maximizes both comfort and safety, making it crucial for all drivers and passengers to follow this guideline.