When your car makes creaking sounds, it can create a feeling of uneasiness. These creaks can come from a few different components; they usually result from the normal wear and tear put on the car over a few years.
Shocks and Struts
If your car seems to bounce up and down and creak after going over speed bumps or hitting potholes, check the shocks or struts. Although they can last upwards of 75,000 miles, shocks and struts can go bad at any time.
Ball joints can go bad or, more specifically, can dry out and begin rubbing, causing a creaking as you go around corners or hit bumps---a relatively easy-to-fix problem. A thorough greasing of the ball joints and other suspension components could solve the problem.
Sway Bar Bushings
If neither the shocks and struts or ball joint are the problem, it may lie in the sway bar bushings. Most newer cars have suspensions as built-in components. Sway bars connect pieces of the suspension together while decreasing the shock to many of the other suspension parts. The bushings on the interior of the sway bar joints can go bad and may require replacement.