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 UnderbodyDrive Belt Replacement
Special Tools
EN 6349 Locking Pin
For equivalent regional tools, refer to Special Tools.
Removal Procedure
Open the hood.
Remove the power steering pump belt. Refer to Power Steering Pump Belt
Replacement.
Raise the vehicle by its full height. Refer to Lifting and Jacking the
Vehicl ...
Inflatable Restraint Side Impact Sensor Replacement
Warning: Refer to SIR Warning in the Preface section.
Warning: Refer to SIR Inflator Module Handling and Storage Warning in the
Preface section.
Warning: Following the deployment of a side impact air bag, inspect the
following parts for damage. Replace these parts if
necessary:
Th ...
Wheel Replacement
Replace any wheel that is bent, cracked, or badly rusted or corroded. If wheel
nuts keep coming loose, the wheel, wheel bolts, and wheel nuts should be replaced.
If the wheel leaks air, replace it.
Some aluminum wheels can be repaired. See your dealer if any of these conditions
exist.
Your de ...