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 UnderbodyEngine Oil Life System
When to Change Engine Oil
This vehicle has a computer system that indicates when to change the engine oil and filter. This is based on a combination of factors which include engine revolutions, engine temperature, and miles driven.
Based on driving conditions, the mileage at which an oil ...
Radiator Grille Reinforcement Support Replacement
Preliminary Procedure
Remove the front bumper fascia. Refer to Front Bumper Fascia Replacement.
Radiator Grille Reinforcement Support Bolt (Qty: 4)
Caution: Refer to Fastener Caution in the Preface section.
Tighten
10 N·m (89 lb in).
Radiator Grille Reinforcement Support Retainer ...
Hazard Warning Flashers
(Hazard Warning Flasher):
Press and momentarily hold this button on the instrument panel above the climate
control system, to make the front and rear turn signal lamps flash on and off. This
warns others that you are having trouble.
Press and momentarily hold again to turn the flashers off ...