Final answer:
Before starting a vehicle, adjust the driver's seat for easy pedal access and a clear view; position mirrors to minimize blind spots; adjust the steering wheel for comfortable reach; and ensure seat belts are fastened correctly for safety.
Step-by-step explanation:
Before starting a vehicle, it is essential to make a number of adjustments for safety and comfort. The four key adjustments you must perform are:
- Adjust the driver's seat: The seat should be positioned so that the pedals can be easily reached and there is a clear line of sight over the dashboard and through the rearview mirror.
- Adjust the mirrors: This includes the rearview mirror and side mirrors. They should be positioned to minimize blind spots and provide a comprehensive view of the road and surrounding area.
- Adjust the steering wheel: It should be at a comfortable height and reach, allowing you to keep your elbows slightly bent while holding it.
- Adjust the seat belts: Ensure they are properly fastened and sit snugly across your body, with the lap belt across the hips and the shoulder belt across the chest.
Properly configuring these elements will not only contribute to your comfort during the drive but also to vehicle safety, allowing for better control and quicker reaction times in case of an emergency.