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 UnderbodyPower Steering Fluid Reservoir Replacement
Preliminary Procedure
Remove as much power steering fluid from the remote power steering fluid
reservoir as possible.
Place drain pans under the vehicle as needed.
Hose Clamp
Procedure
Compress the power steering fluid reservoir outlet and inlet hose clamp
from the power ...
Engine Overheating
There is an engine coolant temperature gauge on the vehicle instrument cluster
to warn of engine overheating.
If the decision is made not to lift the hood when this warning appears, get service
help right away.
If the decision is made to lift the hood, make sure the vehicle is parked on
a le ...
Shifting Into Park
Use this procedure to shift into P (Park):
1. Hold the brake pedal down and set the parking brake.
2. Hold the button on the shift lever and push the lever toward the front of the
vehicle into P (Park).
3. Turn the ignition to LOCK/OFF.
Leaving the Vehicle with the Engine Running
WARNING
It ...