First, walk around your vehicle before entering it to check for pedestrians and anything in your path. Make sure you walk towards oncoming traffic so that you can see it. After that, unlock the driver's side door and enter the vehicle. Then lock the doors. Next, adjust the seat, seat back and head restraint. After that adjust the rear view mirror and the side mirrors. Finally, fasten you seat belt before putting the key into the ignition and starting the vehicle.