Many drivers do not know how to properly position themselves when driving. Having the correct seat set-up can improve your safety by limiting your chances of an accident, as well as being more comfortable.
Make sure you are sitting up straight, with your back and buttocks square and properly squeezed into the seat. This helps to avoid backaches and injuries. It also helps you to maintain awareness on long drives.
The seat should sit far enough forward that you can fully extend the clutch pedal while maintaining a slight bend in the knee. If your knee straightens, you are too far back. If it’s bent close to 90 degrees, it’s too close. A fully extended leg results in the knee locking-up. This reduces the leverage and feel of the pedals, increases effort and puts you at risk of severe foot injuries in a collision. An excessively-bent knee (when the driver sits too close) does not support the body effectively and results in poor blood circulation. The feet should be placed with the heels on the floor and the balls of the feet pressing against the pedals.
Set the seat as high as possible to allow an unobstructed view of all sides.
The seat cushion should be tilted so that your thighs rest gently on the seat without exerting pressure on it.
The backrest should be tilted back slightly, so when turning the steering wheel your shoulders remain in contact with the seat, rather than hunched forward.
The centre of the headrest should sit higher than your ears. If it’s lower than your ears, it acts as a fulcrum in an accident, which will worsen the effects of whiplash.
You can get more safe driving tips from RACQ.