This vehicle has a semi-independent twist-beam rear suspension system consisting of the following components:
Axle Assembly

The axle assembly (1) attaches to the underbody through a rubber bushing and bracket located at the front of each integral trailing arm.
The brackets are attached to the underbody side rails with bolts (2). The axle structure itself maintains the geometrical relationship of the wheels relative to the centerline of the body.
Special Tools and Equipment

Wheel Stud Replacement
Tires and WheelsWhere to Put the Restraint
According to accident statistics, children and infants are safer when properly
restrained in a child restraint system or infant restraint system secured in a rear
seating position.
We recommend that children and child restraints be secured in a rear seat, including:
an infant or a child ridin ...
High Strength Low Alloy Steel
This information provides repair recommendations and general guidelines for
steel classified as High Strength Low Alloy Steel, also known
as HSLA. This type of steel normally has a tensile strength range from 300-700
MPa.
General Motors recommends the following when repairing or replacing th ...
Rear Compartment Lid Adjustment
Rear Compartment Lid
Caution: Refer to Fastener Caution in the Preface section.
Procedure
Loosen the rear compartment lid hinge bolt (Qty: 4) to
adjust the rear compartment lid.
Adjust the rear compartment lid in order to obtain an even gap between
the rear compartment ...