This information provides repair recommendations and general guidelines for steel classified as Ultra High Strength Dual Phase Steel (Dual Phase Steel with a tensile strength greater than 800 MPa), also known as DPX.
General Motors recommends the following when repairing or replacing this type of steel during collision repair.
Note:
Recommended Repairs:
Special Tools and Equipment

Mild Steel
Frame and UnderbodyFront Fender Emblem/Nameplate Replacement (1.8L 2H0 or 2.0L Diesel)
Front Fender Emblem Assembly
Caution: Refer to Exterior Trim Emblem Removal Caution in the
Preface section.
Procedure
The part and surface should be 21°C (70°F) prior to installation. The
vehicle should remain 21°C (70°F) for
one hour after assembly to allow adhesive to develop suff ...
Removal Procedure
Turn the front wheels to the straight forward position and secure the
steering wheel from moving.
Remove the 2 lower steering intermediate shaft bolts (1).
Remove the steering intermediate shaft from the steering gear.
Raise and support the vehicle. Refer to Lifting and Jac ...
Installation Procedure
Position the lower control arm (1) in the cradle.
Install and hand tighten the NEW rear lower control arm bushing nuts and
bolts (1).
Install and hand tighten the NEW front lower control arm nut and bolt
(1).
Caution: Refer to Fastener Caution in the Preface secti ...