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 UnderbodyUsing the System
The infotainment system is controlled by touching the screen, and by using the
knobs and other buttons.
Voice recognition, through the steering wheel controls, can be used to control
the infotainment features.
Press on the steering wheel controls
to begin voice recognition.
See Voice Recog ...
Installation Procedure
Apply structural adhesive on the flanges of the front side door inner
panel where the front side door outer panel bears on.
Align the front side door outer panel.
Verify the fit of the front side door outer panel.
Clamp the front side door outer panel into position.
Pre-f ...
Removal Procedure
Warning: Refer to Approved Equipment for Collision Repair Warning in the
Preface section.
Warning: Refer to Collision Sectioning Warning in the Preface section.
Warning: Refer to Glass and Sheet Metal Handling Warning in the Preface section.
Disable the SIR System. Refer to SIR Disabling ...