2000 Mercury Grand Marquis suspension problems

While driving 65 MPH started to change lanes, and noticed another vehicle in same lane, and swerved back to the right. As soon as she turned wheel to right she lost control of vehicle, it went across 2 lanes of traffic to left, and hit a tractor trailer head-on . Airbags did deploy. Consumer and passenger sustained minor injuries. Consumer stated it felt like vehicle was on ice. Prior to this, when driving over a bump, vehicle was hard to control. Insurance will send an investigator, vehicle was totalled.

While driving down ga highway 16 from dublin, ga to warner robins, ga the car started swaying and become very hard to controll. Nearly missed going under a semi.extremely scarey. Had to pull off road forcibly. Turn vehicle off waited for a while then proceeded home very catiously.