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 UnderbodyCruise Control
For vehicles with cruise control:
: Press to turn the cruise control system on and off.
RES/+: Move the thumbwheel up to resume a previously set speed or to accelerate.
SET/−: Move the thumbwheel down to set a speed or to make the vehicle decelerate.
: Press to disengage cruise contro ...
Rear Spring Replacement
Removal Procedure
Raise and suitably support the vehicle. Refer to Lifting and Jacking the
Vehicle.
Support the rear axle with a tall jack stand near the shock absorber.
Remove the lower shock bolt. Refer to Shock Absorber Replacement.
Using the tall jack stands, slowly lower the rear a ...
Air Vents
Adjustable air vents are in the center and on the side of the instrument panel.
Move the slats (1) to change the direction of the airflow.
Use the thumbwheels (2) near the air vents to open or close off the airflow.
Additional air vents are located beneath the windshield, driver and passenger
...