if you adjust the driver's seat, the head restraint, the steering wheel or the mirror while the vehicle is in motion
if you fasten your seat belt while the vehicle is in motion
, seat belt 
and driver's seat 
: You are sitting as far away from the driver's airbag as possible.
You are sitting in an upright position.
Your thighs are gently supported by the seat cushion.
Your legs are not fully extended and you can reach the pedals easily.
The back of your head is supported at eye level by the middle part of the head restraint.
You can hold the steering wheel with your arms slightly bent.
You can move your legs without any restrictions.
You can see all of the instrument cluster displays well.
You have a good overview of the traffic conditions.
Your seat belt sits snugly against your body and passes across the centre of your shoulder and across your hips in the pelvic area.