As the main purpose of the suspension system is to absorb the shock in order to protect the vehicle and the passengers parts have durability for the same.
There are few components on modern cars that are as over engineered found in the suspension system.
Some of the usual problem faced by the Vehicle in the suspension related would be :
Car Body Rolling : When the body of the car leans to the outside while cornering.All cars do it some extend depending on the weight and also shifts can cause the vehicles to spin and steer out or lose traction on one or other wheels.
Bottom out : When the tires hit the body of the car due to suspension compression,this tells it does not have enough suspension to absorb the force of the bump.Bump stops can be prevented by the cushion between the suspension and frame that prevents the tire from moving up to strike the car body.If this is not taken care then problem may persist .Bottoming out can damage the body,wheels or the suspension system of the car.
Due to movements and force and energy happening with the vehicles,the suspension parts are susceptible to wear out or damage.Some bumps or potholes are so severe that it can even bottom the car out so badly the springs might bend or break.
The squeaking sounds are accompanied due to bushings and other connections failure.If the one corner of the vehicle is too bouncy on the bumps then it has to be inspected by experts.Problems with the suspension system has to be addressed by the experts available in and around your location.