The rear suspension is a collection of components that are bolted together, supporting the rear of the vehicle. During vehicle assembly, one or more bolts securing rear suspension components may not have been tightened to the correct specification. If one of these bolts were to loosen, sudden changes in the vehicle handling characteristics could result, increasing the risk of a crash. Dealers will inspect and re-tighten the bolts as necessary to correct this concern.
 
Recalls
Recalls are issued for cars with safety-related defects or problems
2013 Chevrolet Malibu
Bolts Securing Rear Suspension May be Loose
Suspension & Steering, January 23, 2013