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 UnderbodyEntry Lighting
The headlamps, parking lamps, taillamps, back-up lamps, and most of the interior
lamps turn on briefly when is pressed
on the Remote Keyless Entry (RKE) transmitter.
After about 30 seconds the exterior lamps turn off, and then the dome and remaining
interior lights will dim to off. Entry lig ...
Heated Seats
If available, the controls are on the center stack. The engine must be running
to operate the heated seats.
Press or
to heat the driver or passenger seat
cushion and seatback.
Press the control once for the highest setting. With each press of the control,
the heated seat will change to ...
Instrument Panel Upper Trim Pad Insert Replacement
Preliminary Procedure
Remove the instrument panel. Refer to Instrument Panel Assembly Replacement.
Instrument Panel Upper Trim Pad Insert Screw (Qty: 6)
Caution: Refer to Fastener Caution in the Preface section.
Tighten
2.5 N·m (22 lb in)
Instrument Panel Upper Trim Pad Insert Asse ...